N discussing engines, the ratio of output work to input work expressed as a percentage is called

Which force is responsible for contact forces

Units for "G" the gravitational constant. In just about every source, I see that the value for "G" is 6.67 * 10^-11 m³ * kg^-1 * s^-2 Is this the same as stating that G= 6.67 * 10^-11 m³ / (kg * s²) ?

Which source would provide the most reliable information about the safety of nuclear power plants?

Why would tires have unitary elasticity while gasoline is inelastic?

Beers of snakes thunderstorms darkness in water are classified as blank phobias

An archer shoots an arrow at a 75.0 m distant target; the bullâs-eye of the target is at same height as the release height of the arrow. (a) at what angle must the arrow be released to hit the bullâs-eye if its initial speed is 35.

Which of the following is considered a contact forces?1) the force between two magnets. 2) the gravitational pull of a planet. 3) friction between an object and air. 4) the force between two charged particles.

All matter can be described by using what properties

When a quantity of monatomic ideal gas expands at a constant pressure of 4.00*104pa, the volume of the gas increases from 2.00*10-3m3 to 8.00*10-3m3?

When the notebook is sitting on the table, what force prevents it from falling into the space below the table? If you don't know the name of this force, just describe it. What force keeps the notebook from floating in the air?