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Q1. A tennis ball of mass 57 g travels with velocity < 48, 0, 0 > m/s toward a wall. After bouncing off the wall, the tennis ball is observed to be travelling with velocity < -42, 0, 0 > m/s.
What is the change in the momentum of tennis ball?
What is the magnitude of the change of momentum of tennis ball?
What is the change in the magnitude of tennis ball's momentum?
Q2. A large Lucite cube (n = 1.49) has a small air bubble (a defect in the casting process) below one surface. While a penny (diameter 1.6 cm) is placed directly over the bubble on the outside of the cube, the bubble cannot be seen by looking down into the cube at any angle. However, when a dime (diameter 1.624 cm) is placed straight over it, bubble can be seen by looking down into the cube.What are upper and lower bounds of the range of the possible depths of the air bubble beneath surface?
A hollow cylinder of radius and height has a total charge uniformly distributed over its surface. The axis of the cylinder coincides with the z axis, and cylinder is centered at the origin.
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.
A 53 kg skier skis directly down a frictionless slope angled at 12° to horizontal. Choose the positive direction of the x axis to be downhill along the slope.
The drawing shows one horizontal wire with the current going up and one vertical wire with the current going to the right. Point A is dH to the right and dV above the intersection. Point B is dH to the left and dV below the intersection.
A screen is placed 42.7 cm from a single slit that is illuminated with light of wavelength 677 nm. If the distance between the first and third minima in the diffraction pattern is 3.45 mm, what is the width of the slit.
Find the final displacement from the starting point. How much greater was the distance she walked than her displacement.
Calculate the coil's self-inductance. If the current decreases uniformly from 5.00 to 2.00 in 3.00, estimate the self-induced emf in the coil.
The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after the driver hits the gas (but before he sees the police car), and its motion after the driver sees the police car. Which of ..
What is an electric field between the plates? Towards which plate is it directed.
Calculate the time the microgel would require to recover to 99% of its initial height after the stress is removed. Determine the potential barrier for the molecule aggregation?
Find out the magnetic force on the rod
Create horizontal component of the pendulum
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