physics:

PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf to G to I V Draw 2 | | Read aloud + 3 of 10| 2 | ED c. 17 m/s [W] 9. A car with a mass of 1800 kg slows from 42 km/h [E] to 28 km/h [E]. The impulse from the brakes is a. 7.0 x 10' N.s [W] d. 2.5 x 10' N.s [W] b. 2.1 x10* N-s [E] e. 2.1 x 10" N-s [W] o c. 2.5 x 10" N.s [E] 10. A student exerts a force of 12 N to compress a spring 2.54 cm. The force constant for the spring is a. 0.30 N/m d. 4.7 x 10' N/m + b. 15 N/m C. 31 N/m c. 4.7 N/m 11. Earth's mass is 5.98 x 10" kg. Calculate the value of g at a point 4.8 x 105 km from the centre of Earth. a. 9.8 x 10 - N/kg d. 1.7 x 10' N/kg b. 8.3 x 10 N/kg . 9.8 x 10 N/kg c. 1.7 x 10 N/kg 12. A 722-kg satellite is in circular orbit 7380 km above the surface of Earth (ME = 5.98 x 1024 kg). The gravitational force acting on the satellite is a. 1.52 x 10' N d. 7.33 N b. 5.29 x 109 N e. 7.08 x 103 N c. 5.29 x 103 N 13. Two charged spheres are 15.00 em apart. One sphere has a charge of 5.50 x 10"C and the other sphere has a charge of 2.50 x 10" C. Assuming k= 9.00 x 10'N - m'/C', the electric force between the two spheres is a. 5.50 x 10* N d. 1.81 x 108 N b. 5.50 x 10- N e. 6.80 x 10-17 N C. 3.44 x 10-20 N 14. The direction of a magnetic field B is from right to left as shown right. A proton travels into and perpendicular to the plane of the page. The direction of the magnetic force acting on the proton is left right down b. up c. right down d. left e. directly out of the page and perpendicular to the paper 15. A positively charged particle of mass 3.0 x 10 2 kg and charge +6.4 x 10" C is perpendicular to a 1.5-T magnetic field. If the particle has a speed of 4.8 x 10' m/s, the acceleration of this particle is a. 3.4 x 10 m/s- d. 1.5 x 10 m/s b. 2.6 x 10 20 m/s e. 1.7 x 10'9 m/s c. 1.5 x 10 m/'s 16. Calculate the index of refraction for an object in which light travels at 1.97 x 10 m/s. a. 1.52 x 10' m/s d. 1.95 b. 0.66 m/s 1.52 c. 1.52 m/s 17. A wave travelling along a spring with a wavelength of 2.0 m enters a second spring where the wavelength becomes 3.0 m. If the speed in the first spring was 4.4 m/s, the speed of the wave in the second spring is a. 2.2 m/s d. 2.9 m/s b. 0.73 m/s 4.4 m/s c. 6.6 m/s 23. C 8:49 PM Search amazon POP ENG Sunny US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf to G to | | V Draw 2 | | Read aloud + 4 of 10| | ED PART B: Dynamics [14 marks, 30 minutes] Page3 1. A ball is thrown vertically upward from a window that is 3.6 m above the ground. Its initial speed is O 2.8 m/s. With what speed does the ball hit the ground? [3 marks] + 2. A circus clown is fired from a cannon into a net that is situated 2.0 m above the cannon and an unknown horizontal distance from it. The cannon is elevated at 50 to the horizontal and the clown's speed at launch is 15 m/s. Find the horizontal distance from the cannon where the net needs to placed in order for the clown to land in it. [5 marks] v= 15 m/'s 2.0 m 50 23. C Search amazon W ENG 8:49 PM Sunny US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf G to | | V Draw ~ 2 | |Read aloud + 5 of 10| 2 | ED Page4 4. A 23-kg block is pushed with a 50 N force up a slope that is at a 30 angle to the ground. O The coefficient of friction for the slope is 0.25. Calculate the value of the force of friction. [2 marks] + 5. Two masses, 4.0 kg and 6.0 kg, are connected by a "mass less" rope over a "frictionless" pulley as pictured in the diagram. The ramp is inclined at 30.09 and the coefficient of kinetic friction on the ramp is 0.18. [4 marks] 4.0 kg HK = 0.18 6.0 kg 30 (a) Determine the acceleration of the 6 kg mass once it begins to move. 23. C Search amazon O W ENG 8:49 PM Sunny US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf G to | | V Draw ~ 2 | | Read aloud + 6 of 10| | ED (a) Determine the acceleration of the 6 kg mass once it begins to move. O + (b) Determine the tension in the rope. PART C: Energy and Momentum [14 marks, 30 minutes] Pages 1. A 0.25-kg snowball moving at 15 m/s [E] collides and sticks with a 1.9-kg toy truck travelling at 2.8 m/s [W]. Calculate the velocity of the snowball-truck system after the collision. [3 marks] 2. A robin of mass 150 g uses 10 J of energy and speeds up to 15 m/s in level flight. Calculate the initial speed of the robin. [3 marks] 23. C Sunny Search amazon W ENG 8:49 PM US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf G to | | V Draw 2 | | Read aloud + 7 of 10| 2 | ED O 3. An 87-g box is attached to a spring with a force constant of 82 N/m. The spring is compressed 11 cm and the system is released. What is the speed of the box when the spring is released? [3 marks] + Page6 4. A 63-kg student stands on a 34-kg cart that is moving with a velocity of 3.2 m/s [W]. The student then jumps off so that her velocity is 1.8 m/s [250 W of N]. Calculate the new velocity of the cart. [5 marks] 23. C Search amazon W ENG 8:49 PM Sunny US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf G to | | V Draw 2 | | Read aloud + 9 of 10|2 | ED PART D: Gravitational, Electrical, and Magnetic Fields [14 marks, 30 minutes] Page7 1. Calculate the speed of a satellite in orbit 9.5 x 10 km above Jupiter. (r = 7.18 x 10'm, m = 1.9 x 10" kg). [2 marks] O + 2. Charged spheres X (2.4 x 10-C)and Y (4.5 x 10-C)are in a set position. Calculate the net force on sphere Z, of charge -3.8 x 10-"C. [3 marks] Y (+) O 6.00 em 10.0 em 3. Calculate the electric field 0.8 m from a small sphere with a negative charge of 4.7 x 10-2C. [Note: Direction is inwards or outwards] [2 marks] So3 23. C 8:49 PM Sunny Search amazon W ENG US 2023-06-01PDE FINAL EXAM SPH4U.pdf X + X C File | C:/Users/ghrer/Downloads/FINAL%20EXAM%20SPH4U.pdf to G to | | V Draw 2 | | Read aloud + 2 of 10| | ED PART A: Multiple Choice [20 marks, 30 minutes] page1 1. A race car completes exactly 10 laps around an oval track. Which of the following pairs of quantities concerning its motion would both have values of zero? O a. displacement, average speed b. distance, average speed C. average speed, average velocity d. displacement, average velocity e. average speed, average acceleration 2. The free-body diagram of a block being pushed up a rough an inclined ramp is best represented by + D Fapp a. A D b. B C. 3. An object is travelling north and slowing down. The directions associated with the object's velocity and acceleration, respectively, are . [S], [N] d. [S], [S] . [N], [S] e. zero, [S] c. [N], [N] 4. An object has two forces acting on it: 8.4 N [S] and 7.5 N [E]. The magnitude of the net force is a. 16 N d. 1.3 x 10' N b. 0.9 N e. IIN c. 4.0 N 5. For an object travelling with "uniform circular motion," its acceleration is a. zero because the speed is constant b. magnitude is constant but direction is constantly changing c. directed toward the centre of the circle d. changing in magnitude depending on its position in the circle e. directed outward from the centre of the circle A student lifts a 1.30-kg book from her bag on the floor to her desk 1.00 m above the floor. How much work does gravity do on the book? a. +12.7 J d. -13 .0 J . -12.7 J . +13.0J c. -0.133 J 7. A 102-g sparrow flying at 12.3 m/s wishes to have equal kinetic and gravitational potential energies. The height that will accomplish this is a. 0.315 m d. 1.13 m b. 0.628 m C. 7.72 m c. 0.787 m 8. A 1.5-kg bird is flying west at a velocity of 18 m/s [220 above the horizontal]. The horizontal component of its momentum is a. 17 kg.m/s [E] d. 25 kg.m/s [W] b. 10 m/s [W] (2 significant digits) e. 6.7 kg-m/'s [W] 23. C L amazon POP ENG 8:48 PM Search Sunny US 2023-06-01