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Problem: A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 17 m, it has dropped 54 cm from its original height when it left the racquet.
Part A: What was the initial speed of the tennis ball?
I need help to solve the above problem and neglect air resistance. Give answer in m/s.
An object initially at rest explodes and splits into 3 fragments. the first fragment flies off to the west, and the second fragment flies off to the south. what is the direction of the third fragment
The electric field everywhere on the surface of a charged sphere ofradius 0.300 m has a magnitudeof 520 N/C and points radiallyoutward from the center of the sphere.
A satellite strikes the International Space Station traveling at a speed of 14.70 miles/ Second relative to the station. calculate the energy released by the collision
A certain type of laser emits light that has a frequency of 7.4x 1014 Hz. The light, however, occurs as a series ofshort pulses, each lasting for a time of 4.4 x 10-11 s.(a) How many wavelengths are there in one pulse?
Two people stand 3 m away from a large plane mirror and spaced 3.8 m apart in a dark room. At what angle of incidence should one of them shine a flashlight on mirror so that the reflected beam directly strikes the other person.
A riffle with a mass of 3.00kg fires a bullet with a mass of 3.50 x 10 ^ -3 kg at a speed of 330 m/s. What is the recoil speed of the riffle
(Rev 2/11)In a 60 Hz circuit (such as house wiring), the voltage varies from a maximum value to a minimum, and back again 60 times per second. How is the average voltage defined
A hunter aims directly at a target (on the same level) 137 m away. If the bullet leaves the gun at a speed of 271 m/s, by how much will it miss the target? At what angle must the gun be aimed so the target will be hit?
The top and bottom margins of a poster are 4 cm and the side margins are each 5 cm. find the dimensions of the poster with the smallest area
a what is the frequency of blue light that has a wavelength of 450 nm?b what is the frequency of red light that has a
In a nuclear experiment a proton with kinetic energy 3.0 MeV moves in a circular path in a uniform magnetic field. Find what energy must the following two particles have
Two people are standing on a 3.19-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air and like a hovercraft. The two people, the platform and a 3.16-kg ball are all initially at rest.
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