Physics Questions and Answers December 04, 2022

Vo R Vo I An infinitely long thin conducting tube of radius R lying along the zaxis is split into two halves. The upper half is kept at a potential Vo and the lower half at Vo as shown in the figure. Determine the potential inside and outside the tube.

2. A bullet is shot horizontally from a 50m high cliff and travels 55m from the base of the cliff. What is the initial horizontal velocity of the bullet What is the final vertical velocity of the bullet just before landing WORK GIVEN FORMULAS ANSWER 3. A diver jumps off a cliff with an initial horizontal velocity of 0.5ms and is travelling 15ms

2. (17) (a) (i) A beaker containing 400g of ice at 5C to is placed on a heater. How much heat is required to turn the beaker of ice to water at 15C (Specific heat capacity of water 4200JkgC, specific latent heat of fusion of ice 3.34105Jkg, specific heat capacity of ice 2108 JkgC) (6) (ii) Suppose the heater takes 2 hours to finish the process

(a) A Carnot engine has an efficiency of 29. Suppose we want to increase the Carnot efficiency to 35, how much should the temperature of the hot reservoir increase The temperature of the cold reservoir is fixed at 7 C. (6) (b) A heat engine takes in 850J of heat and does 250J of work in one cycle. (i) How much heat does it release in four cycles

4. (18) (a) Two charges with charge 6x105C and 2x105C are located at points P and Q respectively as shown in Figure 1. The distance between point P and point Q is Y m and distance between point Q and point R is X m. 6x105C P Ym 2x105 Q Xm R Figure 1. (a)(i) What is the magnitude of force exerted on charge at point Q by the charge at point P if Y

5. (20) (a) The circuit in Figure 2 shows a combination circuit powered by a battery source of 68.7V. The resistance values are R 30 R 44 R3 28 Q. Determine (i) the total resistance R123 of the circuit (for the combination of three resistors), (4) (ii) the 2 voltmeter readings (V V3) and the 3 ammeter readings (1, 12 13) at the indicated 5

6. (9) (a) Two parallel wires carrying currents of 1.5 A of upward current (1) and 3 A of downward current (1) are placed 10 cm apart from each other. The wire with 1.5A current is located on the left as shown in Figure 4. 12 Figure 4. (i) What is the magnitude of the force per unit length exerted by one wire on the other (ii) What is the total

A sample of U (7 1.59 x 10 yr) contains 6.30 x 10 nuclei. Part A What is the decay constant Express your answer using three significant figures. A 1.38x1013 1 Part B Correct AN AI Previous Answers Approximately how many disintegrations will occur per minute Express your answer using three significant figures. VOAEO Submit 869 Previous Answers

Two stationary positive point charges, charge 1 of magnitude 4.00 nC and charge 2 of magnitude 1.85 nC, are separated by a distance of 43.0 cm. An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. Part A What is the speed Ufinal of the electron when it is 10.0 cm

The previous problem showed us what happens in classical systems where there are symmetries. We used a pair of oscillating masses to find that. However, oscillating masses are a very basic problem that underlies a lot of physical phenomena. In this problem, we are going to dive deeper into the problem of a single oscillating mass. (a) The

(c) Explain the flow of energy in this system. You will likely find it helpful to recall that we showed in class that the Hamiltonian in terms of the actionangle variables is H uk 2(Ir Io) ,(c) Explain the flow of energy in this system. You will likely find it helpful to recall that we showed in class that the Hamiltonian in terms of the

Problem 2. (25 points) To the right are top views of three rods that vary in mass M and length L. The rods are fixed at the circular point at one end and a force is ap plied to the other end. Note that the moment of inertia of a rod about its end is I mr where m is the mass and r is the length. You should ignore gravity in this problem since it

Consider that the speed of sound in air is dependent on the temperature of the air, so that for every degree celsius, the speed increases by 0.6 ms. The speed of sound in air at 20 degrees celsius is 343 ms. If the temperature in the lab room is actually 25 degrees celsius, then what is expected speed of sound in air What percent error from 343 ms

The manufacturer advises that 100 meters of string is 33 grams. Calculate the accepted value for and compare with your experimental value as a percent error. Again show all work in the space provided. 8 pts Q12 Accepted value of u Percent error

We found the distance to the first location of maximum volume, which in Q1 we identified corresponds to a 4 wavelength. Where is the approximate location of the next maximum (as a fraction of the wavelength) Since the tube is approximately 1.2 meters in length, for which of the frequencies could we experimentally determine the location of this

Question 1 A car starts driving towards you. It is accelerating with constant acceleration. At time t0, the car passes you. At that moment, it starts to slow down with constant deceleration until it stops. The speed of the car is shown in the left picture. The car has a buzzer on top producing a sound with frequency fo. Which graph illustrates the

Question 6 A string has a length L 40.0 cm. The speed of waves on this string is v 50.0 ms. The string is excited and the following standing wave is observed 1000 A. Determine the wavelength of this standing wave. B. Calculate the frequency f of this standing wave. C. For the same standing wave, when the tension in the string is increased by a

Question 9 During a fire, a firefighter holds a hose with a diameter of 4 cm and length of 50 m. The water moves through the hose with a speed of v 10 ms. Assume that the hose is horizontal (the water does not have to go up or downhill) and that the flow of water is laminar. Take for the viscosity of water n 1.010 Nsm and for the pressure of 1

AP Physics 1 Lab Central Net Force Particle Model Name Experiment 1 Fnet VS speed list constants (name, value units) 1. 2. State the proportionality between your independent and dependent variables. Experiment 2 Fnet VS. mass list constants (name, value units) 1. 2. State the proportionality between your independent and dependent variables.

A pump has a critical cavitation constant 0.15. This pump has to be installed in a well with a pipe of 10 m length and 200 mm diameter. There are an elbow (k,1) and a valve (k, 4.5) in the system. The flow is 0.05 m s and the total dynamic head H... 30 m. The atmospheric pressure is 9.7 m water abs and vapor pressure 2.0 m water abs. Calculate

Problem 10 How for below the surface of equal 3. times pressure (Hint be Express your June to use is the ocea what it is the density of feat. is the absolute at sea level sea mater)

ill stick to a Then why does the balloon stick to the wall Match the words in the left column to the appropriate blanks in the sentences on the right. polarizes neutralizes increases smaller attractive 232 of 235 MacBook Air Review Constants Reset Help The balloon is charged negatively after being rubbed with wool. The charged balloon charges the

Part A The amount of useful work that can be extracted from a process is O is equal to AG less than or equal to IAGI is less than or equal to AS always less than the heat that is released Submit Provide Feedback Request Answer

Suppose systems A and B each have 25 bins, and each bin can store one unit of energy. If a system has one unit of energy, its multiplicity is 25 because the unit of energy can go into any of the 25 bins. If there are two units of energy, the second to arrive has only 24 choices of bins and so the multiplicity is 2 25x24. With three units of

Part A What is the thermal energy of a 1.0 m x 1.0 m x 1.0 m box of nitrogen at a pressure of 3.0 atm 380 kJ 450 kJ 760 kJ O910 kJ Submit Previous Answers Request Answer Incorrect Try Again 5 attempts remaining Provide Feedback

lon channels are active pores in a cell membrane that transport ions between the cells interior and exterior. Although generally opened or closed by various cellular mechanisms, for inert cells studied in the laboratory the pores can open or close due to thermal effects alone. In other words, we can model an ion channel as a twostate system with

How much heat is needed to change 25 g of acesc 3.95 10 3kg 240 280 0120 wide Feedback Jkg and the heat of wapization is

3 (a) A laser beam of uniform crosssectional area passes through air into a glass block (refractive index 1.5). Determine the ratios of (i) the velocities (ii) the frequencies and (iii) the wavelengths for the transmitted to incident light. 6 Marks

A plastic balloon that has been rubbed with wool will stick to a wall. Part A Is the wall charged Yes No Submit Part B Previous Answers Correct Then why does the balloon stick to the wall Match the words in the left column to the appropriate blanks in the se,Then why does the balloon stick to the wall Match the words in the left column to the

Problem 17 th 12 f Urp (3) x(cm) The graph a massspris of displacement shows the potential energy of function Mass 13 Speed of system 45 A from equilibrium. If the the maximum B kg, what is the object

A slide projector needs to create a 98cmhigh image of a 2.0cmtall slide. The screen is 330 cm from the slide. For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. Part A What focal length does the lens need Assume that it is a thin lens. Express your answer with the appropriate units. Enter

Problem 9.6 A 0.165kg baseball pitched horizontally at 39.0 ms strikes a bat and is popped straight up to a height of 38.5 m. Part A If the contact time between bat and ball is 3.0 ms, calculate the magnitude of the average force between the ball and bat during contact. Express your answer using two significant figures. Favg 2600 N Submit Correct

73.8 While the speed of the satellite in Figure 73.8, which moves in a circular orbit around the Earth, is v 7300 msec, it is desired to change its speed at point A, make it make a half revolution, and bring it down to the earth at point B. In order to put the satellite into an elliptical orbit, calculate its required speed at point A, the

80 WL pect central impact 72.7 Two billiard balls with mass m 160gr in Figure 72.7 collide with an inclined center. If v. 2ms, v, 2.4ms, 0, 30, 6 45 and the collision coefficient e 0.9, 2 1 a). Find the speed of the balls after the collision. b). Find the energy loss that will occur during the collision. IN i Figure 72.7 m i V2

Complete the following table by finding the exponents to express the parameters in the form MaLbToOd Quantity Mass Length Time Temperature Volume Geometric Quantities Area Rate Quantities Velocity Fundamental Quantities Common Units sec K kg Meter ft mph Acceleration fts Flowrate Evaporation acre gal liter galmin kghr M a 1 0 0 0 a

The highest mountain in the world is Mount Everest in Nepal. The peak of Mount Everest is 29,029 feet above sea level. Convert the height of Everest to to miles to kilometers hav uro 24 meters X2 4 feet what is the length

P.615 In certain experiments it is desirable to have a region of constant magnetic flux density. This can be created in an offcenter cylindrical cavity that is cut in a very long cylindrical conductor carrying a uniform current density. Refer to the cross section in,10 y 0 FIGURE 640 Cross section of a long cylindrical conductor with cavity

CONVERSIONS WITH NEW UNITS Convert furlongsfortnight to handsweek. (Show unit cancellation but do not do the calculations) Use the following conversion factorsconstants 1 furlong 201.2 meters 1 meter 39 inches 1 hand 4 inches 1 week 7 days 1 fortnight 14 days

Department of Physics, Bennett University Tutorial Set1 1. A charge Q is distributed uniformly over a ring of radius R centered at the point C. Find the electric field at a point P lying along the axis of the ring and at a distance a from the point C. 2. A charge Q is distributed uniformly on the surface of a circular disc of radius R. Calculate

A tensile test specimen was tested under a tensile load. The force displacement diagram that resulted is shown in Figure 6. Study Figure 6 below. Write the letter from the diagram that matches each term. 4 Points Rupture Yield Point Proportional Limit Ultimate Force,Force (lbs) O A B Displacement (in) Figure 6 C What kind of material would the

In the figure shown below, q2nC, q23nC, and qs4nC are on the corners of an equilateral triangle (each side is 5 mm). How much work is needed to take charge q to infinity (hint the amount of work is the change in potential energy, so to calculate work, you need to calculate the potential energy before and after moving charge q to infinity). D 9 a.

Solculate its acceleration when it travels 100 and the cable forced 324 nevertical nghe cable does hot evlend Figure 62.10 and the friction on the pulleys is negligible, 62.11 In the system in Figure 62.11, the kinetic friction coefficient between m mass m and the inclined plane is uz. Calculate the acceleration of the mass m when it is left in

A BellColeman refrigerator operates between pressure limits of 1 bar and 6 bar. Air is drawn from the cold chamber at 10C, compressed and then it is cooled to 30C before entering the expansion cylinder. Expansion and compression follow the law pv.35 constant. Calculate the theoretical C.O.P. of the system. 4 CO3

GM What does r m represent, where G is N mkg 2, M is in kg, and r is in momentum of a mass M gravitational force from a mass M gravitational acceleration towards a mass M tideproducing force from a mass M energy of a mass M

What are the units of m N m kg1 JNm Nm1 m N kg1 ms2 N m N GM where G is N mkg2, M is in kg, and r is in

gD pf parameter (s1), D is depth change and is density (kg m). Express the units of ms1 kg 5 1 m s kg Om5 s1 kg1 3 m S kg ms 1 kg1 where g is gravitational acceleration (ms2), f is Coriolis .

The halfcircle (radius a) conducting structure below is placed parallel to the plane of the page. The external magnetic field, Bext, is directed out of the page. The magnitude of this field varies with time as B(t) Bo cos wt. Point P is fixed, but the part between the two marks is allowed to move such that it is always in electrical contact with

How much should the temperature rise as you climb up a mountain 2 km high when the air is relatively dry Assume the vertical temperature gradient is dTdz gCp where g 10 ms 2 and Cp1x10 J kgK1. Evaluate the temperature rise from (height change) x vertical temperature gradient. (give your answer to 0 decimal places)

What is the value of H(rho Cp h) 2 where H is a heat flux in 360 W m rho is air density 1 kg m 3 Cp is heat capacity 1000 J kgK1 and h is the depth scale, chosen to be 1000 m. Give your answer in scientific form to 2 significant figures, such that 2700 is represented by 2.7e3. (Please do not worry that Canvas converts the number on the screen).

Every year at the "proffentap" - evening in the Recup traditionally consumes many barrels of beer. A typical beer keg has an internal diameter of 3 6 cm and an internal height of 5 5 cm and contains 5 0 liter of beer. The barrel is connected to a tapping installation as shown in the figure below. The barrel itself is in the cellar and the tap

CO 4 9mm 4 5mm 3m

For a charge q at the point 7 x y) zk, if the electric field E is defined as E r 17 r, show that E is conservative by er r finding the scalar electric potential such that Vo. b) Demonstrate that V. (rr) (n3)rm.

A vehicle travelling 1 3 0 km / h passes a police car at rest. As soon as the vehicle passes the police car, the police car turns its lights on and begins to accelerate to its maximum speed of 1 4 0 km / h . Part 1 : If the police car accelerates at a constant acceleration for 1 2 seconds, how far will it have traveled before reaching its maximum

Two immobile fixed physical ( point ) dipoles of dipole moments vec ( p ) = phat ( z ) and vec ( p ) = - phat ( z ) are located at z = d 2 and z = - d 2 , respectively as shown in the figure. There exists a point charge q located a distance r from the origin. What is the force on the point charge?

d2 d2 y

In electrodynamics we have E E(r, t) and B B(r, t) satisfying Maxwells equations. In this case we can introduce electromagnetic potentials A A(r, t) and V V(r, t), where the magnetic field is defined in terms of the vector potential as B V x A(r, t). a) Show that this formulation corresponds to an electric field which is defined in terms of A

a) A parallelplate capacitor consists of two circular discs of radius a and separation d such that d a. The capacitor is connected to an AC source and the charge on the positive plate is q qocos (wt). The lines of magnetic field induced by the displacement current are circles centered on the axis of symmetry. Find the magnetic field at any

The average force exerted by a bat on a baseball during the time of contact, which lasts 2 . 0 0 1 0 - 3 s , 6 6 6 0 N . The mass of the baseball is 0 . 1 4 5 k g . and its speed just before the bat hits it is 3 3 . 5 m s . What is the velocity of the ball when it leaves the bat? Assume that the ball leaves the bat along the same line of direction

A lamp giving out 1200 Lm in all directions is suspended 8 m above the working plane. Calculate the illumination at the P point on the working plane 6 m away from the foot of the lamp. 8m 6m P

Two masses (m 6 kg and m 3 kg) hang down a pulley of mass M 2 kg and radius R 0.3 m through a massless string. When the lighter mass (m2) is on the ground the heavier mass (m) is at a height h 12 m. The system is released from rest. (pulley MR). Take gravitational acceleration as g 10 ms. a) Find the tensions in the string. b) Find the

Velocity of sound propagation in soft tissues is 1500 m.s1. Calculate the time, in which the reflected sound wave returns to the ultrasound probe from an organ in distance 18 cm from the probe. O O O O a. 1.2 x 104 s b. 700 s C. 3 x 104 s d. 0.5 x 104 s

Estimate the amount by which the blood pressure P 2 in the anterior tibial artery at the foot exceeds the blood pressure P 1 in the aorta at the heart when a person is standing up . The density of blood is 1 0 6 0 kg / m ^ 3 .

A vector is directed at a direction of 1 1 0 degrees measured counter - clockwise from east ) . Such a would have two components. The composewould be greater than the component. ( Picl best applicable answer. ) a . eastward, northward b . eastward, southward c . westward, northward d . westward, southward e . northward, eastward f . northward,

Two objects, A and B, are connected by hinges to a rigid rod that has a length L. The objects slide along perpendicular guide rails, as shown in Figure Assume object A slides to the left with a constant speed v. (a) Find the velocity VB of object B as a function of the angle 8. (b) Describe v relative to v is y V always smaller than v, larger than

A pendulum in the shape of a rod which has mass M = 4 . 6 2 k g and length L = 1 0 0 c m is pivoted at point O and initially held in the vertical position as shown in the figure. The rotational inertia of the rod about the center of mass is I C M = 1 1 2 M L 2 . ( Take g = 9 . 8 m s 2 ) . What is the angular acceleration of the rod when it

Light of wavelength 6 2 0 nm in vacuum passes through a piece of glass flint of index of refraction n = 1 . 6 6 . The wavelength of this light in glass is nm 4 2 3 a nm 3 7 3 b nm 2 8 0 c nm 5 3 0 d

You are conducting an experiment in which a metal bar of length 7.00 cm and mass 0.300 kg slides without friction on two parallel metal rails (Figure 1). A resistor with resistance R 0.600 2 is connected across one end of the rails so that the bar, rails, and resistor form a complete conducting path. The resistances of the rails and of the bar

Where is our solar system located within the Milky Way Galaxy? ) Very near the center of the galaxy Roughly headwaybetween the center end the edge of the visedisk of the galaxy At the far edge of the galaxy's Ysabeldisk In the halo of the galaxy

Is the kinetic energy conserved during the collision Q value of a collision is given as Q 1 (EnergyFinalEnergyInitial),Colliding Initial masses velocities M M V1i V2i 0.50 1.00 0.50 1.50 Conservation of momentum Sum of Final velocities Vif V2f initial momentum Pi Sum of Law of final consv. of momentum difference momentum holds pf (YN)

A wrench 0 . 5 0 0 m long is applied to a nut with a force of 8 0 . 0 N . Because of the cramped space, the force must be exerted upward at an angle of 6 0 . 0 with respect to a line from the bott through the end of the wrench. How much torque is applied to the nut? a . 4 . 5 6 N * m b . 1 1 . 8 N , m C . 1 4 . 2 N * m d . 3 4 . 6 N * m

48. A small marble rolls around a horizontal circular path on the inner surface of a conical bowl. The surface of the bowl makes an angle with the vertical. a. Draw a freebody marble path of the marble diagram of the forces acting on the marble. b. Show that the acceleration a of the marble is given by a g tan O The speed of the marble is 1.5m s

Light of wavelength 6 2 0 n m in vacuum passes through a piece of glass flint of index of refraction n = 1 . 6 6 . The wavelength of this light in glass is: a . , 3 7 3 n m b . 4 2 3 n m c . 5 3 0 n m d . 2 8 0 n m

A vertical rectangular object of uniform mass M 10 kg has sides a 0,31 m and b 0, 49 m. It is pivoted from point O as shown in the figure below. If a constant force of F 142 N, making an angle of 3 37 with diagonal is applied, determine the angular acceleration of the rectangle in SI units at the instant shown. Express your answer using one

A ball of mass m is released from a point ( L , H ) at t = 0 . At the same time, a container of sand ( mass M ) is launched with speed vo along a frictionless slope at an angle of 3 0 . How big does it have to be for the ball to fall exactly into the bowl of sand? Suppose the ball then gets stuck in the sand. At what speed v does the container

Supercapacitors, with capacitances of 1 . 0 0 F or more, are made with plates that have a spongelike structure with a very large surface area. Determine the surface area of a supercapacitor that has a capacitance of 1 . 4 9 F and an effective separation between the plates of d = 1 . 7 7 m m .

A sound wave has a frequency of 7 0 0 H z in air and a wavelength of 0 . 5 0 m . What is the temperature of the air? a . 4 5 . 2 C b . 7 . 5 C c . 1 5 C d . 3 2 . 2 C

Assume the aorta with crosssectional area of 2.0 cm2 if the flow speed is 40 cms and the aorta branches to form a large number of capillaries with a combined crosssectional area of 3.0 103 cm2. What is the flow speed in the capillaries (p of blood 1.0 gcm3) O a. VCapillary 0.27 mms O b. VCapillary 100 mms O c. VCapillary 80 mms O d. VCapillary

. , 4 4 3 m s

The speed of sound waves traveling through air at 20 C is O a. 343 ms O b. 89 ms O c. 443 ms

A copper wire with length L and radius r has a resistance R . What is the radius of a copper wire with length 2 L and resistance R ? a . r 2 b . r * ? 2 2 c . 2 r d . r 2 2

Suppose a force of 3 N acts on the eardrum with an area of 1 c m ? ? ? 2 , calculate the pressure on the eardrum in m m of H g . [ Hint density of H g = 1 3 . 6 1 0 ? ? ? 3 k g m ? ? ? 3 ] a . , 1 6 0 m m H g b . 5 2 2 m m H g c . 3 0 0 m m H g d . 2 2 0 m m H g

Determine the position of the CM of a whole leg (a) when stretched out, and (b) when bent at 90 degrees. Assume the person is 1.80 m tall. Consider the masses of leg components in percentage units are as the following (Thigh 21.5, Knee 9.6, Ankle 3.4) 50.3 9.6 23.6 9.6 33.9 L x (a) 28.5 18.2 1.8.

Determine the velocity of 7 - MHz ultrasound pulse through tissue, which used to monitor the baby inside the womb, if the wavelength limit to detail is 0 . 2 2 m m ? a . 1 5 4 0 m s b . 2 5 0 0 m s c . 4 0 0 m s d . 7 0 0 m s

IQF ( Individually Quick Freezing ) system is a system that allows each grain and particle to freeze separately and quickly by passing cold air over the food items. In the IQF system, strawberries with a diameter of 2 . 8 cm are frozen by cold air at - 4 0 deg C with a speed of 1 3 m / s . Strawberries enter the IQF system at 2 5 deg C . In this

If sin x 0.77 and 90 x 90, what is the value of x to the nearest degree a) 40 b) 50 c) 50 d) 40

The equations for displacement and velocity can be rearranged to produce the following relationship vwxx x is the amplitude of the oscillation measured in m t is the time taken measured in s w is the angular frequency measured in rad s wt is an angle that increases with time measured in radians. A full oscillation is completed when (wt) 2 rad.

The origin of each system is in static equilibrium. (You will probably have to use algebra) 1 2 77.85 C 65 50 cos 45 200N A200N B50N Find the unknown values Sin 45 By 50sin 45 So cos 45 Bx 50 50 sin 45 B90N 4.909 X x 50 105 45

A 5kg wheel (i.e. a circular disk) with diameter 40cm is placed at the top of a hill that is located 100m above the flat ground. Use energy to determine the wheels velocity when it reaches the bottom of the hill if the wheel rolls without slipping.

A 0.5kg ice hockey puck is tied to a 2m long string nailed down to an iceskating rink (assume frictionless ice). The hockey puck is rotating around in a circular path at the end of the taught string and takes 10 seconds to make 15 complete revolutions. What is the tangential velocity of the puck What is the tension in the string

Use the diagram Horizon View to complete the following table. The Horizon View is seeing the observers horizon from above. Each of the lines represents the direction the observer would be looking to see each of the letters. Line A B C D G H E F Azimuth 45 Common Term NE W E T H S C Observers Head B Horizon View Each of the lines in the figure

B. Consider waves a and b, representing electromagnetic radiation i. Calculate the wavelength of both waves. Hint Note the distance scale at the top of the figure to help with your calculationshow many waves occur for that distance V. Wave a iv. Wave b ii. Which wave has the longer wavelength 1.6 10 m mw Wave a iii. Calculate the frequency and

Kirchoffs loop rule Derive V VR Vc 0. From these two equations Vc(t) V(1 e ) and V(t) Ve Explain and show steps

Below is a graph of xvelocity vs. time t of a robot that can move along a straight line. What is the average xacceleration between 40 and 50 sec Give answer in terms of ms. You need to be within 3. (ms) Vx 10 5 10 I 20 30 40 50 time (sec)

A test object of mass mest is placed at the origin of a two dimensional coordinate system (Figure 1). An object 1, of mass m 7mtest, is at (d, l), and an object 2, of mass m 2mtest is at (d, 0). Figure m d miest d 1 of 1 m Part A What is the magnitude of the vector sum of the gravitational forces exerted on the test object by the other two

The magnetic field tic of an OEM responds to the expression nB ( r , t ) = ( 1 , 8 x 1 0 ^ - 7 ) sin ( ( 1 4 x 1 0 ^ 6 ) x - wt ) , where the campomagn Attic is measured in Teslas, distance in meters and time in seconds. ( a ) Cu l is the width of the field electric Cu Is the magnitude of the Poynting vector of the OEM? Cu l is the value of the

The primary method by which the water in a pot reaches a temperature of 8 0 C is by . . . . . ( a ) conduction. ( b ) convection. ( c ) radiation. ( d ) evaporation. ( e ) condensation.

Which expression below is a correct approach to determining the unknown quantity which is represented by x O 1698 100 X 96.1 O O 96.1 O O 96.1 O 1698 X X X 96.1 100 1698 100 100 X 100 1698 96.1 100 X X 1698 DUTERT XX 1698 7 96.1 44 I 11

Two objects are are moving towards each other with velocities V and V on a frictionless surface. The velocity of the second object before the collision has a magnitude of Vl21,8 ms. They collide completely inelastically and move together after the collision with a velocity V3 as shown below. If the ratio of the masses is mm 0,97 and the angles are

Find the impulse between 1 and 4 seconds for the following Force vs . Time graphs: a ) F = 3 t 2 ( 6 3 N s ) c ) F = 0 . 5 t 4 , ( 1 0 2 . 3 N s ) b ) F = e 2 t , ( 1 4 8 7 N s )

A fan cart of mass m1.230 kg starts at x,0.020m y0.000m and v0.300 ms and accelerates along a 23.40 degree ramp at 1.000 The x direction is along the ramp. The y direction is out awayfrom the ramp. The rolling friction from the wheels of the cart is trivially small so we can ignore it. Drag is also so small that we can ignore it. 0 What was its x

Consider four vectors F1, F2, F3, and F4, with magnitudes are F 52 N, F 35 N, F3 67 N, and 0 120, 0 37, and 04 51, measured from the positive ax axis with the counter clockwise angular direction as positive. What is the magnitude of the resultant vec tor F, where F F F2 F3 F4 Answer in units of N. 13 N, and F4 140, 03 P P 1

IP The point charges in the figure below have the following values: q 1 = 2 . 1 C , q 2 = 6 . 6 C , q 3 = - 0 . 9 2 C . Assume that charge q 1 is at the origin and q 3 lies on the positive x - axis. Part A Given that the distance d in the figure is 4 . 1 2 c m , find the magnitude of the net electrostatic force exerted on the point charge q 1 .

Two identical small charged plastic balls are dropped into a vertical tube, one after the other. The repulsive electrostatic force acting on the top - most ball is just enough to counterbalance the gravitational force acting on it at a distance 1 2 . 6 5 m m above the lower ball ( d is the center to center distance between the balls ) , resulting