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Assume a spacecraft of mass 28,000 kg is accelerated to 0.43c.
a) How much kinetic energy would it have?
b) If you utilized the classical formula for kinetic energy, by what percentage would you be in error?
a car traveling east at 41.9 ms passes a trooper hiding at the roadside. the driver uniformly reduces his speed to 25.0
Given the moon's period about the earth is 27.32 days and the earth-moon distance is 3.84 x 108 meter, compute the mass of the earth
An engine absorbs 1699 Joule from a hot reservoir and expels 1199 Joule to a cold reservoir in each cycle. Compute how much work is done in each cycle
A copper pot sits on a hot plate that is at a remperature of 140 C, How long before one half the pots contents evaporate
The biochemistry that takes place inside cells depends on various elements, such as sodium, potassium, and calcium, that are dissolved in water as ions, What is the resistance of the ion channel
A curve in a highway has radius of curvature 110 m and is banked at 3.4°. On a day when the road is icy, what is the safest speed to go around the curve
A charged object has a potential of 40 V at a distance of 3 m. If the distance is increased to 42 m, then what will be the new potential
You and your friend are standing on a horizontal platform that is rotating about its center. What is the difference between your angular speed (in rad/s) and your friend's speed
At a coal-burning power plant a steam turbine is operated with a power output of 465 MW. The thermal efficiency of the power plant is 31.6%. (a) At what rate is heat discarded to the environment by this power plant? (b) At what rate must heat be supp..
A rookie quaterback throws a football with an initial upwardvelocity component of 13.0 m/s and ahorizontal velocity component of 24.0m/s. How high is this point
What is the average translational kinetic energy of nitrogen molecules at 1400 K
A 380kg piano slides 3.2m down a 27â degrees incline and is kept from accelerating by a man who is pushing back on it parallel to the incline, What is the force exerted by the man
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