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A 200g block is released from rest at a height of 25 cm on a frictionless 30 degree incline. It slides down the incline and then along a frictionless surface until it collides elastically by an 800 g block at rest 1.4 m from the bottom of the incline.
How much later after the first collision do the two blocks collide again?
The drawing shows two situations in which charges are placed on thex and y axes. They are all located at the samedistance of 2.3 cm from the origin O. For each of the situations inthe drawing, determine the magnitude of the net electric field atthe o..
a severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 34 km2. what mass of water in kg fell on the
A nail gun fires a nail into a piece of wood. The nail is going a velocity of 9.0 m/s right before entering the wood. The mass of the nail is 0.060 kg, how far into the wood does the nail go
on planet tehar the free-fall acceleration is the same as that on earth but there is also a strong downward electric
A 423 Hz sound wave travels through a substance. What is the speed of sound in the substance
A solid conducting sphere with radius that carries positive charge is concentric with a very thin insulating shell of radius 2 that also carries charge . The charge is distributed uniformly over the insulating shell. Q: Find the magnitude of the elec..
A parallel-plate capacitor is made from two plates 12.5 cm on each side and 4.20 mm apart. Half of the space between these plates contains only air, but the other half is filled with Plexiglas of dielectric constant 3.40.
The current in a 120-V reading lamp is 1.8 A. If the cost of electrical energy is $0.070 per kilowatt-hour, how much does it cost to operate the light for an hour
A bungee jumper undergoes simple harmonic motion with amplitude 7.9m and frequency 0.110Hz. Determine the bungee jumper's velocity
A uniform 2.45- kg spinning disk with a radius of 0.253 m is brought to rest by a brake-pad pressed against the side 0.200 m from the rotation axis. The wheel is brought to rest from an angular velocity of 18.7 rad/s in a time of 21.1 s. What frictio..
1.two paths lead to the top of a big hill. one is steep and direct while the other is twice as long but less steep.
an electron moving with a speed of 9.5 105 ms in the positive z direction experiences zero magnetic force. when it
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