How much force is needed to accelerate a 66 kg skier at 2 m/sec^2?

How does the redshift of distant galaxies best support the big bang theory? It shows that the galaxies are becoming warmer. It shows that the galaxies are becoming larger. It shows that the galaxies are moving farther away.

What effect does acceleration have on an object, such as your body, that is made up of many loosely connected parts?

A spring has a force constant of 1 Ã - 105 n/m. how far must it be stretched for its potential energy to be 47 j? answer in units of m.

Technician A says clutch slippage can best be diagnosed with the vehicle stopped, parking brake applied, placing the transmission in 4th gear, and slowly releasing the clutch pedal to see if it stalls the engine.

The neucleus of about atom contains positive or negative electrons

Two stars, x and y, have the same temperature. star x is ten times more luminous than star y. which star has the larger radius

If the weight of an object of mass "m" is "mg," then the weight of an object of mass "2m" is A. mg/2 B. mg C. 2mg D. 4mg

In an old house, the heating system uses radiators, which are hollow metal devices through which hot water or steam circulates. In one room the radiator has a dark color (emissitivity = 0.830). It has a temperature of 64.1 oC.

Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 10 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible.

Three rocks, each of varying mass and volume, are released from a window at the same time. The window is at height h above the ground.