Part A With what impulse does a 0.64-kg newspaper have to be thrown to give it a velocity of 3.7 m/s? Express your answer to two significant figures and include the appropriate units. FAt= Value Submit Provide Feedback Request Answer Units ?
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A: As per guidelines, only 3 subparts of first question is solved here.
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- Part L A 2.40 kg can of coffee moving at 1.50 m/s in the +x-direction on a kitchen counter collides head-on with a 1.20 kg box of macaroni that is initially at rest. After the collision the can of coffee is moving at 0.825 m/s in the +x-direction. What is the velocity (magnitude and direction) of the box of macaroni after the collision? Express your answer to three significant figures and include the appropriate units. Enter positive value if the box is moving in the +-direction and negative value if the box is moving in the -z-direction. μà C ? VB2 = Value Units Submit Request Answer Part M What is the kinetic energy of the can before the collision? Express your answer with the appropriate units. μA ? KC1 = Value Units Submit Request AnswerA steel ball with mass 37.0 g is dropped from a height of 2.10 m onto a horizontal steel slab. The ball rebounds to a height of 1.60 m. ▾ Part A Calculate the impulse delivered to the ball during impact. Express your answer in newton seconds. ΔΙΑΣΦΗ Submit ▾ Part B Submit A Request Answer ^ If the ball is in contact with the slab for a time of 2.00 ms, find the average force on the ball during impact. Express your answer in newtons. ΠΙΑΣΦ ⒸIF ? Request Answer C N-s ? NA 12-kg hammer strikes a nail at a velocity of 7.6 m/s and comes to rest in a time interval of 8.9 ms. Part A What is the impulse given to the nail? Express your answer to two significant figures and include the appropriate units. FAt= Submit Part B F = Submit LOW Value ΜΑ Request Answer What is the average force acting on the nail? Express your answer to two significant figures and include the appropriate units. μĂ Value Request Answer Units Units P Pearson ? ? Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
- 15. A skier is at the top of a frictionless hill. The hill makes an angle of 30.0° relative to the horizontal. What would be her acceleration down the hill? A. 2.9 m/s² B. 4.9 m/s² C. 3.3 m/s2 D. 3.8 m/s² E. 8.5 m/s²A-C thank you!You head to Lake Charles for a spring break and win big at roulette. You decide to spend your winnings on a motorcycle. This 1800 N bike can go from 0 to max speed in 3 seconds.a. If the bike’s change in momentum is 4600 kg m/s, what is the max speed attained? b. What average force does the bike output to attain this change in momentum?
- A 900 kg car is travelling north on Hwy 5 at a speed of 25 m/s. Another 900 kg car is travelling south on Hwy 5 at a speed of 25 m/s. a. Do these cars have the same kinetic energy? Why or why not?b. Do these cars have the same momentum? Why or why not?Problem 9.34 A0.060-kg tennis ball, moving with a speed of 5.8 m/s , has a head-on collision with a 9.5x10-2-kg ball initially moving in the same direction at a speed of 2.7 m/s. Part A Assuming a perfectly elastic collision, determine the speed of each ball after the collision. Enter your answers numerically separated by a comma. Express your answers using two significant figures. Hνα ΑΣφ ? m/s 'tennis ball Vhall= Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B Determine the direction of tennis ball after the collision. The tennis ball moves in the direction of its initial motion. The tennis ball moves in opposite direction. Subm Previous Answers v Correct Part C МacВook ProA 3.4 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 480 m/s, goes completely through the block, emerging at a speed of 250 m/s. Part A What is the speed of the block immediately after the bullet exits? Express your answer with the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units ? 208
- Part A A small, 250 g cart is moving at 1.50 m/s on a frictionless track when it collides with a larger, 5.00 kg cart at rest. After the collision, the small cart recoils at 0.870 m/s. What is the speed of the large cart after the collision? Express your answer with the appropriate units. ? Value UnitsDirection: Read and analyze the given problems. Solve each problem by showing your solution. Box the final answer (maximum of 5 significant figures). Note: Indicate the corresponding unit. A 5.00-g bullet is fired into a 900-g block of wood suspended as a ballistic pendulum. The combined mass swings up to a height of 8.00 cm. What was the kinetic energy of the bullet immediately before the collision?8 3 L5 R %24 Part A A 0.149 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.750 m/s. It has a head-on collision with a 0.290 kg glider that is moving to the left with a speed of 2.21 m/s. Suppose the collision is elastic. Find the magnitude of the final velocity of the 0.149 kg glider. Submit Request Answer Part B Find the direction of the final velocity of the 0.149 kg glider. O to the right O to the left Submit Request-Answer Part C Find the magnitude of the final velocity of the 0.290 kg glider. Submit Request Answer Part D Find the direction of the final velocity of the 0.290 kg glider. O to the right O to the left Submit Request Answer 000 000 DD F7 2 F3 F4 F5 F6 %23 & 3. 9 7. 6