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A charge of -3.00 uC is fixed in place. From a horizontaldistance of 0.0450 m, a particle of mass 7.2 X 10-3 kgand charge -8.00 uC is fired with an initial speed of 65.0 m/sdirectly toward the fixed charge. How far does the particle travel before its speed is zero?
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train
A particle of 8 kg with a veloctiy of 40 m/s hits a 40 kg particle that is at rest. The collision is elastic. What are the final velocities of the particles
1. a 10.6-kg iron block at 203acircdegc is quenched in an insulated 18.4-kg water bath initially at 18acircdegc. after
A guitar string is under a tension of T = 198N. The string has a mass of m = 99g and length L. What is the length of the string in m
Two ice skaters, with masses of 50.0kg and 75.0kg , are at the center of a 40.0m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 40.0s , how long does..
An object with mass 4.0kg is executing simple harmonic motion, attached to a spring with spring constant 300N/m, Calculate the amplitude of the motion
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. what is the intensity of the light wave
Suppose that the amount of heat removed when 2.8 kg of water freezes at 0.0 oC were removed from ethyl alcohol at its freezing/melting point of -114.4 oC. How many kilograms of ethyl alcohol would freeze
A very small charged block with a mass of 2.35 g is placed on an insulated, frictionless plane inclined at an angle of 17.0° with respect to the horizontal, find the sign and magnitude of the charge on the block
How far does Tinki drive before passing David.
The soccer goal is 21.78 m in front of a soccer player. She kicks the ball giving it a speed of 18.69 m/s at an angle of 25.43 degrees from the horizontal. find the speed of the ball just as it reaches the goalie
Two astronauts on opposite ends of a space ship are comparing lunches. One has an apple, the other has an orange. They decide to trade. Find the final speed and direction of the apple
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