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A tennis ball (m=60 gram) traveling at 25 meter per second hits a wall and rebounds with a speed of 22 m/s.
A. Evaluate the impulse given to the ball.
B. If the collision with the wall took 0.33 second obtain the average force the wall exerted on the ball.
an object has a weight of 0.874 n. it is suspended from a scale which reads 0.704 n when the piece is submerged in
Some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway. At what angle must they be launched to just graze the ceiling
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s, What is the work done on the ball by the racket
When ultraviolet light of wavelength 2.54*10-5 cm and intensity 0.5 mW/cm2 form a mercury arc falls upon a clean copper surface, the stopping potential necessary to stop the emission of the photo-electrons is 0.59 V.
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
a find the speed at which superman mass87.0 kg must fly into a train mass 19348 kg traveling at 70.0 kmhr to stop it.b
A 1.80 MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats.
A field mouse trying to escape a hawk runs east for 6.0m , darts southeast for 3.9m, What is the magnitude of the net displacement of the mouse
suppose a uniformly charged ring in the xy plane, centered at the origin. The ring has radius a and positive charge q distributed evenly along its circumference.
The electric field strength just outside the outer conductor of a coaxial cable of outer radius of 0.2cm is E=7200N/C directed inward. find the initial surface charge density of the outer conductor
q1. charge a and charge b are 2.5 m apart. charge a is 1.4c and charge b is 2.5c. charge c that is 2.0 c is located
An object moves with constant acceleration 4.40 m/s2 and over a time interval reaches a final velocity of 12.4 m/s. what is its displacement during the time interval
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