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While messing around with billiard balls, you roll the 8-ball into another ball of the same mass and initially at rest. After the collision, the 8-ball ball moves at 3.50 m/s along a line making an angle of 24.0° with its original direction of motion, and the second ball has a speed of 1.90 m/s. Assume that the frictional force of the table on the billiard balls is negligible during the interaction.
(a) Find the angle between the direction of motion of the second ball and the original direction of motion of the 8-ball ball.
°
(b) Find the original speed of the cue ball.
A standing wave is created on a string of length 1.0 m and fixed at both ends. What is the wavelength of the third harmonic
Consider a car driving at constant velocity. The force of friction acting on the car in Newtons is, Find the magnitude of f when v = 50 miles/h
Illustrate a basketball momentum vectors
Your motorboat can move at 30km/h in still water. How much time would it take you to move 12km upstream, in a river flowing at 6km/h.
find the normal force on the car to the highway surface (in N). C) As the car and truck round the curve at 72.9 mi/hr , find the normal force on the truck to the highway surface (in N).
Although both stars probably formed from the same clump of gas, more massive one must have had its birth slowed so that it became a key -sequence star millions of years later than its less massive companion.
The speaker coil consists of 100 turns of wire, 2cm in diameter. The current in the speaker will be 1.6 A when the force on the speaker coil is 14.8 N. What strength magnetic field will give this force.
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, Determine the maximum speed and the earliest time
A wave on a string is described by the relation y = A sin(47t - 0.023x), where t is measured in seconds and x in meters, with A = 0.18 m, Find the frequency of the wave
A hydrogen molecule with an initial velocity of 1200m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of molecules is mO / mH = 16. What are the speeds of the molecules after collision.
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
A firefighter with a weight of 702 N slides down a vertical pole with an acceleration of 2.90 m/s2, directed downward. What are the magnitudes and directions (choose the positive direction up) of the vertical forces
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