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A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s and rebounding upward with a speed of 2.06 m/s.
a.) Calculate the magnitude of the change in the ball's momentum.
b.) Calculate the change in the magnitude of the ball's momentum.
The amplitude of the electric field of an electromagnetic wave is 197 V/m.
A transformer has 380 primary turns and 1220 secondary turns. The input voltage is 120 V and the output current is 15.0 A. What is the output voltage and input current
Estimate the force P to accelerate the 80 - Ib block at 6ft/sec2 to the right.
An eagle is flying horizontally at a speed of 3.00 m/s when the fish in her talons wiggles loose and falls into the lake 5.00 m, Calculate the velocity of the fish relative to the water when it hits the water
A dog running in an open field has components of velocity = 3.4 and = -1.9 at time = 10.4. For the time interval from = 10.9 to = 24.7, the average acceleration of the dog has magnitude 0.45 and direction 25.
A uniform plank of length 5.8 m and weight 217N rests horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 460 N walk on the overhanging part of the plank before it just beg..
A 2.00-m-long rope has a mass of 0.100 kg, What is the frequency of the oscillator if the power transmitted is 120 W
A solid sphere and a solid cylinder with the same mass and radius roll down an inclined plane without slipping. Which one will reach the bottom of the incline first. Explain why. Assume friction is negligible for both.
An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..
Agree on the mass of the earth knowing that the mean radius of the moon's orbit about the earth is 248,910 mi and that the moon requires 28.32 days to complete one full revolution about earth.
Get the expression for how moving clocks run slowly when seen by observers at rest.
A series RLC circuit has components with the following values: L = 22.0 mH, C = 86.0 nF, R = 25.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit.
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