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At some point in its orbit our asteroid is moving with a speed of 25 kilometers per second. Determine the kinetic energy of the asteroid assuming it has a mass of 1000 kilograms. Be sure your answer is in the correct units of energy.
A straight wire segment 4 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force on the wire
A 1.0kg object is released from rest 500km ( approx 300 miles) above the earth. What would the impact speed be if the earth were flat
A spring of spring constant k = 340 Nm-1 is used to launch a 1.5-kg block along a horizontal surface by compressing the spring by a distance of 18 cm. how far does the block slide
A new electric power plant has an efficiency of 42%. how many are essentially lost as waste heat (in barrels of oil) to the environment
A diver releases an air bubble of volume 2.0cm3from a depth of 16m below the surface of a lake, What is the volume of the bubble when it reaches just below the surface of the lake
The electron mass is 9×10?31 kg. What is the magnitude of the momentum of the electron
A uniform cubical crate of side length 1.7 m rests on the floor with one edge against a very small, fixed obstruction. What is the weight of the crate
As an electron moves through a region of space , its speed decreases from 8*10^6 m/s to 3*10^6 m/s. Through what potential difference did the electron move
A box that weighs 300 N is pulled across a level surface with a constant velocity. What is the normal force of the floor on the box
An explosion of a 10.0-kg bomb releases only two separate pieces the bomb was initially at rest and a 4.00-kg piece travels westward at 100 m/s immediately after the explosion. What are the speed and direction of the other piece
An open-tube mercury manometer is used to measure the pressure in an oxygen tank. When the atmospheric pressure is1140mbar, what is the absolute pressure (in Pa) in the tank if the height of the mercury in the open tube is26.0cm higher than the mer..
Two ants race across a table 62 cm long. One travels at 4.77 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is second one. What am I trying to solve for distance, speed, or time.
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