Physics Questions and Answers November 26, 2022

A snowboarder and his board with a combined mass of 65.0 kg moving at 14.00 m/s are about to go up an incline of angle 34.9 degrees, but due to friction only make it up a vertical height of 2.5m. what was the coefficient of friction?

A 0.250kg ball is thrown at a wall at a speed of 21.0 m/s and rebounded with a speed of 10.00 m/s. if the average force of the wall on the ball is 221 N, then how long did the ball collide with the wall? Take the initial direction of the ball as the negative direction.

5.In the PV diagram, Po latm, vo 22.4L. We suppose the work substance is O, Calculate 1), the work of the cycle2 ) the efficiency of the cycle. P 2po Po O b Vo 2V0 V

Unpolarized light is incident on two crossed polarizers. The TAs of the first and second polarizers are the x and y axes, respectively. For unpolarized light, Io Ex E 2Ex, Transmission (7) IIo. (a) When a halfwave plate (HWP) with the angle of from the x axis is inserted between the crossed polarizers, derive T of output light as a function of

A steel(c=448J/kg. C)strut near a ship's furnace is2.00mlong, with a mass of1.57kgand cross-sectional area of1.0010 4 m 2 . During operation of the furnace, the strut absorbs a net thermal energy of2.5010 5 J. (a) Find the change in temperature of the strut. (b) If the initial temperature was 40C. Find the final temperature.

The magnitude of the net force exerted in the positive x direction on a 9, 5kg particle varies in time as shown in the Figure below. If initially the velocity of the particle is 6, 8ms along the x axis, determine the final velocity of the particle after the 5.0s interval. Please note that () and () signs are used to denote positive and negative

A conveyor belt drier is used to dry fermented tea from 60 moisture content to 5 (wet basis). Dry hot air from the furnace enters the dryer at 110 C with a 1 RH. The drying air leaves the drier at 30 C at 70 RH. For this purpose 150 kg dry air kg solid tea is used at steady state conditions. Suddenly at t 0, the flow rate of drying air is

4. A 0.2 m electric water heater uses 4 KW. Assuming no heat loss, how many hours would it take to heat the water in this tank from 28 to 80 (specific heat capacity of water c 4186 J kg.K, density of water 1000 kgm. Hint find the mass from the density formula p )

A block of mass m 9kg with initial speed of v 11,9ms travels a distance d on an inclined plane with are k 0,3 and 9 9.80ms. V 32 and comes to rest. If the coefficients of kinetic and static friction 0, 56, determine d in units of meters using one decimal place. Take 0 d

Consider a combination of a thin positive lens and a concave mirror as illustrated below. For the object located between the lens and the mirror, two real images with the same size is formed at the same position on the left side of the lens. The magnification of both images is 1.5, with one image upright and the other upside down. When the focal

3kg and m The two masses m 8kg are connected by a massless string passing through a massless pulley as shown in the figure below. If the system is released from rest when m is on the ground and ma is h 1, 6m above the ground, determine the speed of m right before it hits the ground in units of ms. Take g 9.8ms and round off your answer to one

1. Calculate the density of cubical solid if one of its side is 2 cm and its mass is 154.4 g. What material it the cube made of 2. Air has density of 1.29 kgm at room temperature. Calculate the mass of air in a room with length, width and height of 3 m, 1.5 m and 2 m, respectively. 3. What volume does 0.4 kg of alcohol occupy What is the weight of

A force of 400 N is applied to a small piston of hydraulic press whose diameter is 4 cm. What must be the diameter of the large piston if it is to lift a 200 kg load

If 1.2kg water at 25 C is heated in the electric kettle, how long, the water will take to reach to its boiling point. Specific heat of water is 4186 J/kg. C

A 2 kg crossbow is used to fire a 100g arrow fired horizontally. The arrow is released from the crossbow at a speed of 40 ms. BEFORE FIRING AFTER FIRING a) Determine the magnitude of the recoil velocity of the crossbow immediately after it separates from the arrow b) How much kinetic energy does each piece acquire immediately after separation

2. A block of mass m on a horizontal surface is attached to the end of a massless spring with stiffness constant k. The other end of the spring is fixed. The mass is given an initial displacement xo from equilibrium, and an initial speed vo as illustrated in the figure. The gravitational acceleration is g. Ignore friction. (a) (9 Pts.) Find its

The switch has been connected at t0 in Fig 1. (a) Calculate v(t) at t2 second and t0, 12 marks (b) Calculate i(t) at t2 second and too. The current flowing through the capacitor is t). 8 marks 12 V ift) 2F (2) Figure 1 1 www 392 422 2A 10 42

5. A point particle of charge q and mass m moves in a central potential of U(r) In(rro) r2 where a and ro are constants. Determine the equation of motion of a point if the total mechanical energy of a particle is zero.

1. A Golf shoe has 10 cleats, each having an area of 6.4 x106 m in contact with the floor. Assume that in walking, there is one instant when all 10 cleats support the entire weight of an 80 kg person, what is the pressure exerted by the cleats on the 2. A pipe contains water under a gauge pressure of 400 kPa. If you patch a 4mm diameter hole in

Wind hits the side of a car at 40.0 miles per hour, exerting a total force of 1030 N. (a) If you assume that the air speed drops to zero when it hits the car, how many kilograms of air hit the car every second? (b) If the density of air 1.29 kg/m3, what is the surface area of the side of the car?

If a football player with a mass of 100kg is running at -5m/s, what would their momentum be?

A weight lifter lifts a 310-N set of weights from ground level to a position over his head, a vertical distance of 2.20m. How much work does the weight lifter do, assuming he moves the weights at constant speed?

A 3.6-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.0m/s 2 , find the force exerted by the rope on the bucket.

A 75 kg ski jumper starts his jump from the top of a 100 m high hill. She/he slides down the hill and up a jump board that is inclined at 45 degree and is 30 m high and reaches a speed of 102 km/h at the end of the board. a. What is the ski jumpers kinetic energy at the end of the board? b. What would be her/his kinetic energy in the absence of

A force F of magnitude 5.90 units acts on an object at the origin in a direction 48.0 above the positive xaxis. (See the figure below.) A second force F of magnitude 5.00 units acts on the object in the direction of the positive yaxis. Find graphically the magnitude and direction of the resultant force F F. magnitude direction units

A 6.0-kg object undergoes an acceleration of 1.9m/s. 2 (a)What is the magnitude of the resultant force acting on it? (b) If this same force is applied to a 12.0-kg object, what acceleration is produced?

A 5.7-g bullet leaves the muzzle of a rifle with a speed of 306m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.94-m-long barrel of the rifle?

Consider a pipe that slowly curves upwards. The pressure at the bottom of the pipe is 11,810 Pa and the pressure at the top of the pipe is measured at 10,286 Pa. The pipe bends upwards to a height of 1.4 m and leaves at a speed of 8.6 m/s. If pure water is flowing through the pipe, how fast was the water moving originally (entering the pipe)?

The coordinate of an object is given as a function of time by x = 7t-3t, where x is in meters and t is in seconds. Its average acceleration over the interval from t = 0 to t = 2 s is: A) 0 m/s B) -5 m/s C) 6 m/s D) -6 m/s E) 1 m/s

A loop with an AC current produces a changing magnetic field. Consider a copper loop, and next to it imagine a loop of air of equal size. In which of the loops will the induced electric field be greater? a. the plastic loop b. the copper loop c. electric field is same in both Air Copper

A ring of current lies in the x-z plane with the axis of the ring on the y-axis. The ring carries a current of 9.42A and the radius of the arc is 56.5cm. Determine the magnitude of the magnetic field created by this current at the point on the y-axis, y =63.8cm

A hydrogen balloon rises up when released. Within a short period of time, the balloon expands and does a work of 6000 J to the outside environment. During the same period of time, it also loses 12000 J of heat. How much does the internal energy of the balloon changes? (A) 6000 J (B) - 6000 J (C) 18000 J (D) - 18000 J

You have entered an egg drop contest on Campus. Your designed container will protect the egg from breaking if it hits the ground going no faster than speed v. a. Using a conservation of energy framework, calculate the height h from which you can safely drop the egg without having it break upon impact as a function of v and the acceleration of

Can you figure out a relationship to find the total resistance of a parallel circuit given the individual resistances? explain

As the heavier bucket moves downward to the ground, what will have been the change in mechanical energy of a system consisting of the lighter bucket and the Earth, and what will have been the tension in the rope?

Collision-coalescence and the Bergeron process both act to a. increase the relative humidity of the air. b. increase the specific humidity of the air. c. increase the size of water droplets and ice crystals. d. none of these

Michael's car ran over a nail, which made a hole in one of the tires. At what point will air stop pouring out of the hole in the tire? A. when all of the air has escaped from the tire B. when the air pressure in the tire is less than atmospheric pressure C. when the air pressure in the tire is equal to atmospheric pressure D. when the air pressure

3. A symmetric matrix S ST has orthonormal eigenvectors ,...,Un. Then any vector a can be written as a combination z Cv cnun. Explain these two formulas rx xSxAci.... Anc. 4. Problem 3 gives a neat form for the Rayleigh quotient x Sx r Ac Why is the maximum value of that ratio equal to the largest eigenvalue A R(x) ... Anch c

A block slides down a frictionless ramp that is at an angle of 45 degrees with respect to the ground. It begins at rest. To answer the following questions, assume that the block has traveled ten meters along the ramp by time t. a. How much work has been done by gravity in this time i. h 10sin 45 meter ii. mgh m g 10 sin45 52mg 69.296mJ b.

Compare the velocity responses obtained from the Voltage mode and Current mode velocity control in one plot. Summarize the differences between the current mode and the voltage mode velocity control. Describe the Pros and Cons of each approach.

An incandescent lamp operating at a voltage greater than its rated voltage will ____. a. last the same as it would be operating at its rated voltage b. not last as long but will burn brighter c. not last as long and will not burn as bright as it should d. last longer but will not burn as bright as it should

A vertical aerial photograph shows two features to be separated by 4.5 in. A map at 1:24,000 shows the same two features to be separated by 9.3 in. Calculate the scale of the photograph.

If we have an object that has a mass= 5. 7 kg is free to move on a horizontal surface without any friction. It is initially at rest and starts moving under a net force of F = (3 N)i + (UN)j. what is the object's speed in m/s after moving 1 meter?

The Mississippi River is larger in the Gulf of Mexico than farther north because a. cotton farms use a lot of water near the Gulf of Mexico. b. the bed is smoother near the beach. c. multiple rivers combine along its path. d. it is flowing faster farther south.

A string is stretched between two fixed points. The string is plucked at its centre and is seen to vibrate with frequency fas shown below. Which one of the following expressions gives the frequencies of other possible modes of vibration that have an antinode at the centre The number n in each expression is an integer. nf (2n1) f (n1) f

Randomized Variables B 25 dB The human ear can detect a minimum intensity of Io 1012 Wm, which has a sound intensity of 0 dB. If the student hears a sound at 25 dB, what is the intensity of the sound 1

The Honouliuli Neighborhood Board would like to make 10 speed bumps along the Kualakai Parkway. You are at the board meeting to give testimony against the addition of the 10 speed bumps because it would decrease the time for a fire truck to put out a human-made or nature-made fire. Write a testimony to the Honouliuli Neighborhood board showing

A student hears a sound with a power of P 38 W. At their distance from the source, the sound has intensity I 0.75 Wm.,7 Assuming the eardrum is circular, what is the radius of their eardrum, in meters

One day when the speed of sound in air is 343 ms, a fire truck traveling at v, 26 ms has a siren which produces a frequency of f 417 Hz. Randomized Variables vs 26 ms f417 Hz,fa1 What frequency, in units of hertz, does the driver of the truck hear Hz

When a pilot is subjected to a large acceleration for example, when performing aerobatic stunts they are said to have pulled 3g in that maneuver. Sometimes people use the term gforce to describe being pressed into your seat, but in this class we must be clear. There is no gforce. Just as in the previous example with the elevator, a persons

The intercooler is cooled by outdoor air so that the compressed air can only be cooled to within 10 F of 90 F (i.e., 100 F). If this is done, does condensation occur in the HX, which should be avoided at all costs? Bottom lineis the inlet temperature to the 2nd stage equal to 100 F or the dew point temperature? Explain.

The exit from Highway 101 to Embarca Road has a cloverleaf interchange, where cars turn around a banked curve of radius 45.0 m. The bank angle is 2 degrees, and the coefficient of static friction between the road and tires is 0.700. (a) What is the maximum speed at which the car can traverse the curve without slipping Give your answer in symbolic

A moving vehicle requires power to push the air out of the way. The drag force on an object moving through a fluid is Fp Cpv. For a popular EV on the market, we calculate CD 0.33 kg m (a) What is the power required to maintain a constant speed of 70 mph considering only the drag force. Neglect rolling resistance and the friction of the moving

fa1 What frequency, in units of hertz, does the driver of the truck hear Hz,fa1 What frequency, in units of hertz, does the driver of the truck hear Hz,One day when the speed of sound in air is 343 ms, a fire truck traveling at v, 31 ms has a siren which produces a frequency of f 422 Hz. Randomized Variables Vs31 ms f422 Hz,One day when the speed

This signal (yellow flashing) over a lane means this lane is about to open A. do not drive in this lane B. this lane is under construction C. move out of this lane and into the lane with the green light D. the lane is about to open

a) Determine the wind loads on the building. b) Refer to the National Construction Code (NCC)) for requirements for weatherproofing the faade. describe the test methodology including the test pressures for the static and cyclic pressure tests to satisfy the requirements of NCC. c) Design the glass and structural silicone for the vision panels. d)

A developer intends to construct a Hospital in Gosford, New South Wales. This building will be 6 storey in height. The architectural intentions are as follows Background 6 Storey structure 36 metre x 36 metre with column spacing 6 metres cc Floor to floor height 3500 mm Depth of edge heam 300 mm Maximum deflections Dead load 4 mm Live load 5 mm

Consider a threedimensional monatomic crystal at thermal equilibrium. Use the Debye model to show that the phonon contribution to the low temperature heat ca pacity of the crystal behaves as T.

DEBYE MODEL OF A SOLID

In the canonical ensemble, calculate the partition func tion of N noninteracting quantum harmonic oscillators of frequency w. Calculate the heat capacity of the system. Show that the heat capacity approaches the con stant classical value at high temperatures.

Consider a spin12 paramagnet of N spins, labeled by si, i 1, ..., N. The spins take two values, Si1. The paramagnet is placed in magnetic field B so that the energy of a single spin is Esi Bsi (for i 1,..., N), where is the magnetic moment of each spin. It is in thermal equilibrium with a reservoir at temperature T. The magnetization is M S

Geoengineering through stratospheric aerosol injection cools the surface through: a. increases in ocean pH b. increases in ozone depletion c. decreases in infrared radiation d. None of above are correct.

Technician A says the vehicle speed sensor used with an electronic speedometer is typically mounted near one of the vehicle drive wheels. Technician B says a cable-driven speedometer unit depends upon magnetism to move the needle. Who is correct? a) A only b) B only c) both A and B d) neither A nor B

A digital speedometer constantly reads zero mph. Technician A says the problem may be the vehicle speed sensor. Technician B says the problem may be the throttle position sensor. Who is correct? a) A only b) B only c) both A and B d) neither A nor B

I. DIFFUSION EQUATION Obtain the diffusion equation from the continuum limit of a random walk. II. MEAN SQUARE DISPLACEMENT IN A RANDOM WALK Prove that the variance in displacement of a one dimensional random walk is proportional to the number of steps. If the steps occur at regular intervals, the root mean square displacement grows as the square

Consider a onedimensional crystal with a diatomic ba sis of atoms with mass M and M. The separation be tween like atoms (lattice constant) is a. Obtain the dispersion relation w(K). Derive the leading terms of the low energy dis persion relations for optical and acoustic phonons (Ka 1).

I. BRAGG REFLECTION Consider a monatomic crystal structure on an fcc lat tice with lattice constant a (length). Make a sketch of a family of parallel planes that pass through three adjacent, but noncollinear facial centers. For example, passing through the atoms at (0, a2, a2), (a2,0, a2), and (a2, a2, 0). Provide the Miller indices for the set of

Muscles operate with an efficiency of about 18 % in converting energy internally into work externally. Accordingly, how much energy (in Joules) will be expanded by a 71.6 kg person in the process of ascending several flights of stairs to a height of 21.6 m?

A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum a distance d 0.288 m from the rock, which has a mass of 485 kg, and fits one end of the rod under the rocks center of weight.

A pilot is flying from New York to Miami, FL. While en route, the pilot encounters strong easterly winds at an altitude of 30,000 feet The pilot needs to make course corrections to account for the Coriolis effect. which direction should the pilot adjust the course to compensate for the Coriolis effect? turn aircraft slightly to left (towards to

Show that two objects thrown at any two complementary angles relative to the horizontal (e.g., 70 and 20 or 55 and 35 or a line drive and a fly ball) will have the same range. (Hint-Let , result in range R, and 2 result in range R2. Show that if , +2=90, then R, R2. Recall that sin(180-0)=sine.)

The wavelength of light coming from a particular star measures 4 cm. If the "rest wavelength" of that light is 12 cm, what can I conclude about the distance between my location and that star? a. the distance is decreasing b. the distance is increasing c. Doppler shift gives speed information d. the distance is unchanging

This question relates to solving a simple differential equation using matrix methods. The personal data can be found on Moodle by running the MATLAB code. Using the details of a differential equation and associated boundary conditions provided here, you should determine the solution using matrix methods. Be sure to clearly annotate your solutions

1. A displacement transducer has the following specifications Linearity error 0.15 reading Sensitivity error 0.25 reading Range 050 cm The transducer output is to be indicated on a voltmeter having stated accuracy of 0.1 reading with a resolution of 20 V. Estimate an uncertainty in a nominal displacement of 20 cm at the design stage. (25 Points)

(a) A cool fluid flows over a flat plate heated to a uniform temperature over its entire length L. Show that the average heat transfer coefficient can be found by integrating the local heat transfer coefficient over the length of the plate L 1M hx dx 2hxL where hxL is the local heat transfer coefficient evaluated at the end of the plate. (b) Air

What is the relationship between area, force, and pressure? a. Pressure is inversely proportional to both force and area. b. Pressure is proportional to both force and area. c. Pressure is proportional to force and inversely proportional to area. al Submit d. Pressure is inversely proportional to force and proportional to area

ap R www R 9.30 www R R3 www 20 www R Consider the combination of resistors shown in the diagram. The resistors have the following values R 22.0 2 R 7.30 2 R3 4.20 R4 1.80 2 R5 R6 10.00 2,Part A Calculate the equivalent resistance of this circuit between the points A and B. Tries 015 Part B Assume that a DC power supply is connected

If your aircraft were upset by a gust of wind which resulted in a pitch-up followed by a pitch-down moment, your aircraft would be: a. Statically stable b. Statically neutral c. Statically unstable

What is the only difference between visible radiation and radio waves? a. Radio waves can be heard, whereas visible radiation cannot. b. Radio waves travel more slowly than visible radiation. c. Radio waves have shorter wavelengths than visible radiation. d. Radio waves are sound while visible radiation is light. e. Radio waves have longer

The length of a bond, between two atoms, is the distance between the two nuclei of the atoms that is the point of _____. Select one: a. minimum energy b. nuclear fission c. covalent inclusion d. maximum energy

When a comet passes through the inner solar system, what destruction does the comet undergo? a. Gravity pulls it out of the solar system b. Forced into orbit with a shorter period c. Impact with a planet or the Sun, or tidal forces from a planet or the Sun rip it apart d. A large increase in kinetic energy causes it to explode

A 0.1 kg baby toy is hanging from the ceiling from a vertical spring and is resting on the surface of a crib rail. The spring is stretched 1.5 m and has a force constant .075 N/m. Requirement What is the force that the crib exerts on the baby toy?

Which person or object has the greatest quantity of motion in this assignment out of the following options (circle your answer): a. The 142 kg baseball moves at 40 m/s the instant before it makes contact with the catcher's glove. b. The swimmer from question 1 (70 kg) at the instant she leaves the starting platform. c. Nicole, the 70 kg volleyball

Compared to X-rays, UV photons have a. higher energy and lower frequency. b. lower energy and lower frequency. c. lower energy and the same frequency. d. higher energy and higher frequency. lower energy and higher frequency.

3. Calculate the total energy of the following (show your work) 1. proton with velocity 400 ms 2. FM radio photon with frequency 100 MHz

The picture mentions the the Cape Wind project in Nantucket Sound between Nantucket island, Martha's Vineyard, and Cape Cod. Although formally proposed in 2001, this project has been abandoned. Despite being approved and clearing many legal hurdles, construction of the project has been canceled. Although a majority of Massachusetts residents

Jens H. M Lanan, Copenhagin Envirament and Energy Offic Figure 12.14 Offshore wind park in harbor of Copenhagen, Denmark. Capacity 40 MW. One of the fastestgrowing areas for wind power is offshore (Fig. 12.14). Such sites have the advantage of generally higher wind speeds and less turbulence. Foundation work and protection from the corrosive

show your working

elocity 6 Speed 772 S 2 772 S 0 2 Time 2 seconds ound all answers to one decimal place. All answers must be in SI units, be sure to make conversions if necessary Position in meters relative to a reference point 6 8

The temperature of a hot spring is A. above the average air temperature of a region. B. above the boiling point. C. above 10 degrees D. above that of the human body.

Why do astronomers have difficulty locating black holes and use observations of stars to detect their presence They do not give off light. They give off too much light. They are invisible. There is too much gas.,A star has if it appears to be moving across the sky as the night progresses. apparent motion excess energy endless motion mass

A well-mounted manometer in an Anaerobic digester has vertical tubes of diameter D = 25 mm and d= 5 mm as shown in Figure 2. The manometer field by red gauge fluid with an SG (specific gravity) of 0.827. Evaluate the liquid deflection when the applied pressure is equivalent to 56 mm of water.

Is your op-amp a "rail-to-rail" op-amp? If so, are you still seeing some "clipping" of the output and why? Increase the gain of your resistor configuration to 4 v/v. What are the upper and lower clipping voltages?

To measure the voltage between two points A and B (see Figure 3), we have two multimeters. One is an analogue multimeter with an internal impedance of 200 KM and a range of 200 V, and the 3) other one is a digital multimeter with an input impedance of 25 M2. Input voltage of the circuit is 200V DC. 1) Draw the diagram of for each measurement. 2)

Which object would have the most kinetic energy? A. An elephant sitting at the top of a cliff B. A sloth hanging from a tall tree C. A mouse running at 11 km/h D. A zebra running at 10 km/h

The goal of microscopy is to create a magnified image of A. any object. B. objects that are generally measured in centimeters or meters. C. objects that are too small to be seen with the unaided eye. D. objects that are too large to be seen in detail.

Show your work for each question. Follow the Problem Solving Techniques to neatly answer the entire question (1.e., make sure you label your coordinate axis frame). Use Sl Units unless otherwise indicated. worth 10 points. 1. A toy cannon (m, 2 kg) is mounted to two fixed horizontal rails on which it can slide to the left or right with negligible

Light with wavelength 646 nm and unknown polarization is incident from vacuum at an unknown angle onto a nonmagnetic material with refractive index 1.222. If the absolute ratio of reflected to incident electric field Er Eil0.223, what is the absolute ratio of reflected to incident H field HrHil

A bicycle slows down uniformly from 1 8.40 to rest over a distance of 115 m. 8.40 ms 115 m Each wheel and tire has an overall diameter of 68.0 cm. Assume the bicycle wheels roll clockwise without slipping and the tire is in firm contact with the ground. The linear speed of the bike and the angular speed of the wheels are related by Vlinear bike

1. Parallax plays a part in measuring the internodal distances in Part 2. Describe in detail how measurements were made to minimize this effect. If an amount of uncertainty in measuring the internodal distances is to be considered what would be a reasonable amount. Explain why this amount was chosen. 2. If a thicker string was used in this

Pressure gradient in the vertical direction (z) is (eq. 1) dP dzpg This differential equation can be integrated when the density is a constant and give you the wellknown pressure equation of AP pg (2221). Now what if the density is not a constant What happens to the pressure equation if the density of air as an ideal gas varies with pressure and

(Reallife Example from Bills Life) Assume that one evening you are out riding your bike and you come to a big hill. You decide that you want to race your brother down the hill going as fast as you each possibly canbut at the bottom of the hill is an unexpected speedbump that you hit going 55mph. This causes your bikes center of mass to rotate up

We wish to find the percent voltage regulation of an automotive alternator. We begin by manually adjusting the field current for rated condition, which is 75 amperes, 14.5 volts. Then we disconnect the load, and find the no-load voltage is 16 volts. What is the voltage regulation?

Explain in detail.

A ball is equipped with a speedometer and launched straight upward. The speedometer reading three seconds after launch is shown at the right. At what approximate times would the ball be moving upward and display the following speedometer readings 20 10 0 30 40 Speed ms 50 60 Time (s) Tap to Answer 20 10 0 30 10 0 30 20 40 Speed ms Speed ms 50 60