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A bat strikes a 0.145- baseball. Just before impact, the ball is traveling horizontally to the right at a speed of 40.0, and it leaves the bat traveling to the left at an angle of 35 above horizontal with a speed of 65.0. The ball and bat are in contact for 1.85 Find the horizontal component of the average force on the ball. Take the x-direction to be positive to the right.
A 563 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 2.9 meters
A rocket is launched vertically from rest; and it burns fuel at a constant rate of 136 kg/s. Exhaust gases are expelled with a speed of 5.25 x 10^3 m/s relative to the rocket. what is the magnitude of the thrust?
Radio station KBOB broadcasts at a frequency of 85.7 MHz on your dial using a radio waves that travel at 3.00X10^8 m/s. What's the shortest distance between the towers
a. find the electric field 8.4 cm from the filament where the distance is measured perpendicular to the length of the
What is the total negative charge, in coulombs, of all the electrons in a small 1.05{\rm g} sphere of carbon? One mole of C is 12.0{\rm g} , and each atom contains 6 protons and 6 electrons.
Two radio-frequency point sources separated by 2.0 m are radiating in phase with ? = 1.00 m. find how many maxima it detects
A beam of light is sent directly down onto a glass plate (n = 1.5) and a plastic plate (n = 1.2) that form a thin wedge of air (see the drawing). An observer looking down through the glass plate sees the fringe pattern shown in the lower part of the ..
the solar wind is a thin hot gas given off by the sun. charged particles in this gas enter the magnetic field of the
The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. What is the angular separation between the red and violet components of the spectrum that emerges from the glass
A 23kg child slides down a 4.0m -high playground slide. What is the change in the thermal energy of the slide and the seat of her pants
upstream of a normal shock in air the pressure is 14.7 psia and the temperature is 528r. downstream of the shock the
An experimental bicycle wheeel isplaced on a test stand so that it is free to turn on itsaxle. If a constand net torque of 5.00Nm is applied to thetire for 2.00s, calculate the friction torque
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