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Bill developed a space craft that artificial gravity. It has a radius of 50m. It starts rotating and attains a constant angular speed of 1.5 rad/s. He wants to know the tangential velocity of and debris that is thrown overboard. What is the tangential velocity?
water at a pressure of 5 atm at street level flows into an office building at a speed of 0.7 ms through a pipe 5 cm in
the electric field midway between two equal but opposite point charges is 883 and the distance between the charges is
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. The electron has negligible initial speed and a final speed of 2.40 107 m/s. Find the voltage drop from cathode to anode.
A cyclotron operates with a given magnetic field and at agiven frequency. If R denotes the radius of the final orbit, the final particle energy is proportional to 1/R. A cyclotron operates with a given magnetic field and at agiven frequency. If R ..
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
Two waves traveling on a string in the same direction both have a frequency of 236 Hz, a wavelength of 0.40 m, and an amplitude of 0.14 m. What is the phase difference between the two waves
a spaceship approaches an asteroid and sends out a radio signal with proper frequency 6.5 x 109 hz. the signal bounces
The label on a 12.0-V truck battery states that it is rated at 219.0 A·h (ampere-hours), How much electric energy can the battery supply and How much charge in coulombs can be pumped by the battery
a rock climber throws a small first aid kit to another climber who is higher up the mountain. the initial velocity of
A horizontal wire of length 0.51 m, carrying a current of 7.8 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
As long as you don't stretch it too much, the force exerted by the spring obeys Hooke's Law. The further you stretch the spring, the harder it pulls back on you. How far does the spring stretch from equilibrium
A curling stone, with a mass of 20.0 kg, slides across the ice at 1.50 m/s. It collides head on with a stationary 0.160-kg hockey puck. What is the stone's final velocity
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