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A 4·kg cart is moving to the west at 7·m/s. What is the kinetic energy of the cart?
How much energy can be obtained from conversion of 1.0 gram of mass? How much mass could this energy raise to a height of 0.23 km above the Earth's surface?. What is the speed of a proton accelerated by a potential dissimilarity of 112 MV?
A 1.50 kg block rests on the icy surface of a frozen pond, which you can assume to be frictionless. If the location of the block is measured to a precision of 0.70 cm, what is the minimum uncertainty in the block's speed, assuming the mass is known e..
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
Use the worked example above to help you solve this problem. Figure a shows a simple apparatus for demonstrating resonance in a tube. Find the wavelength and the next two air-column lengths giving resonance
Assume you weigh 160 lbs on earth. How far away from earth's surface would you have to go so that your weight dropped to 40 lbs
question1a creamy salad dressing is completed of heavy cream corn oil and vinegar as well as a pinch of dry mustard
a rocket is fired at a speed of 75.0 ms from ground level at an angle of 68.7deg above the horizontal. the rocket is
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.23 m/s. What is his speed when he catches up
a solid cylinder rolls down an inclined plane without slipping. what is the angle of the incline to the horizontal
A Garden hose with a cross sectional area of 3.2x10^-4 m^2 is used to fill up a bucket with a volume of 6.5x10^-2 m^3 in 25 seconds
A 72.4 man steps off a platform 3.02 above the ground. He keeps his legs straight as he falls, What is the magnitude of the reaction force to the force
A music store has jazz, classical, country-western and rock music albums on tapes and CDs in the following quantities finding the probability.
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