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Two rockets are fired at each other with initial velocities of 150m/s and are 6000m apart. The first rocket is accelerating at 5m/s2 while the second is accelerating at 15m/s2 . How far has the second rocket gone (in meters) when they collide?
Two long, parallel wires separated by 3.00 cm carry currents in opposite directions. The current in one wire is 1.20 A, Is the force attractive or repulsive
Given: G = 6.67259 × 10?11 Nm2/kg2 A small Moon of a planet has an orbital period of 0.714 days and an orbital radius of 3.63 × 105 km. From these data, determine the mass of the planet.
Dan is gliding on his skateboard at 4.00 meter per second. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8 m/s, Obtain how fast is Dan going as his feet hit the ground
According to a stationary observer, a moving clock appears to run at a rate that is 0.22 times the rate of a clock at rest. How fast is the clock moving
A 150 MW laser pulse is focused with a lens to a diameter of 4.99 ?m. What is the laser beam's electric field amplitude at the focal point
A roof tile falls from rest from the top of a building. An observer inside the building notices that it takes 0.19 s for the tile to pass her window, How far above the top of this window is the roof
What angular velocity would be required to give a rotating object of mass 25 kg and a radius of 2 m a centripetal force of 50 N
A 0.77-m aluminum bar is held with its length parallel to the east-west direction and dropped from abridge. Just before the bar hits the river below, its speed is23 m/s, and the emf induced across its length is 6.30 10-4 V.
A 0.710 millimeter diameter silver wire carries a 10.0 mA current. Determine the electron drift speed in the wire
A rock weighing 400 N sits on the edge of a 60 m cliff. After falling 15 m how much kinetic energy does the rock have
When a flower petal is 4.0cm in front of a converging lens, the inverted image is half the height of the petal. What is the focal length of the lens? Please describe work/variables (eg f=focal length etc.)
The sun is 150,000,000 km away. The mass of the sun is 2x1030 kg, the mass of the earth is 6x1024 kg. What is the torque of the earth on the sun
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