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What mass of granola, which has a usable energy content of 2,000 cal/g, would be equivalent to the change in gravitational potential energy of a 60.0 kg man who ascends from sea level to the top of Mt. Everest, at elevation 8.848 km? Assume the average g for the ascent is 9.8 m/s^2.
A ball of mass 0.196 kg with a velocity of 1.41 m/s meets a ball of mass 0.302 kg with a velocity of -0.393 m/s in a head-on, elastic collision. (a) Find their velocities after the collision. 1f = m/s 2f = m/s (b) Find the velocity of their center of..
Two electrons in the same atom both have n = 4 and script i = 2. How many quantum numbers are there for the possible states of the atom? How many states would be possible if the exclusion principle did not apply to the atom?
On a cold winter day, the outside temperature is -5.0 °C. What is the cost to heat the garage for six hours at these temperatures if the cost of electricity is $ 0.11/kWh?
An electric motor is plugged into a wall socket and is running at normal speed. Suddenly, some dirt prevents the shaft of the motor from turning quite rapidly. What happens to the back emf of the motor, and what happens to the current that the mot..
Two thin lenses with a focal length of magnitude 16.5cm , the first diverging, How far from this first lens is the final image formed
a surface is so constructed that at all points on the surface the vector points outward. therefore it can be said
What is the magnitude of the velocity of water
A nonconducting solid sphere of radius 11.2 cm has a uniform volume charge density. What is the sphere's volume charge density
A player uses a hockey stick to increase the speed of a0.200kg hockey puck by 6 m/s in 2 seconds. How much did the hockey puck accelerate
Matthew pulls his little sister Sarah in a sled on an icy surface (no friction) with a force of 60 N at an angle of 600 upward from the horizontal
A pendulum bob with mass of 3.0 kg is suspended from an ideal string a distance of 3.5 m from the ceiling. A 0.004 kg bullet is fired horizontally at a speed of 6.91x103 m/s and imbeds itself in the bob.
A neutron that is stationary. A neutrino that is speeding up from 1000m/s to 1200 m/s. An electron that is slowing down from 500 km/h to 400 km/h. A proton moving at a constant velocity of 60 mph due north. Anion moving in a circle while traveling at..
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