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A large bouncy ball with a mass of 209 g is dropped straight down and then bounces back up to a height that is slightly lower than the point from which it was dropped. The ball hits the floor 0.65 s after it is released and the ball is in contact with the floor for 0.080 s during the bounce. The momentum of the ball right before it hits the floor is 1.3 kg.m/s, down. The momentum of the ball right after it leaves the floor is 1.1 kg.m/s, up.
Determine the magnitude of the average net force exerted on the ball while it is in contact with the floor.
What is the magnitude of the average force that the floor exerts on the ball?
A soccer ball with a mass of 448g bounces off the crossbar of a goal and is deflected upward at an angle of 56.2° with respect to horizontal. Immediately after deflection, the kinetic energy of the ball is 47.70 J. What are the vertical and horizo..
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15 m/s due north relative to water.
What is the charge on the drop. A 13 kg child on a playground swing moves with a speed of 3.6 m/s when the 6.0 m long swing is at its lowest point. What is the angle that swing makes with the vertical when the child is at the highest point.
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.44 m radius and is 1.8 m high. The walls are 1.0 cm thick.
Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).
presume you had job offers from two companies that differed only in how often they produced CEOs. Would these differences affect your decision.
What is the magnitude of the auto's average acceleration.
After 3.1 ms has elapsed, how much charge remains on the 3.00-µF capacitor, What is the current in the resistor at this time
A 1200 N uniform boom is supported by a cable perpendicular to the boom, as in Figure P8.28. The boom is hinged at the bottom, and a 2000 N weight hangs from its top. Find out the tension in the supporting cable and the components of the reaction ..
Two ants race across a table 73cm. long. One travels at 4.18cm/s and the other at 3cm/s. When the first one crosses finish line, how far behind is the second one.
How many electrons should be transferred from the plate. When you enter your answer, leave off the unit rm dB.
Two loudspeakers on a concert stage are vibrating in phase. A listener is 57m from the left speaker and 30m from the right one. The listener can respond to all frequencies from 20 to 20 000 Hz.
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