The moon is slowly moving away from the earth. What will eventually happen to the gravitational pull force between the earth and the moon? Why?

Where do we consider the Universal Gravitational Constant? A. Anywhere in the universe B. Only in our solar system C. In space, outside of a planets gravity D. Only on earth

The amount of energy transported by a wave is most closey related to a wavelength of the wave true or false

A pulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor.

Compute your average velocity in the following two cases: (a) You walk 50.2 m at a speed of 2.21 m/s and then run 50.2 m at a speed of 4.11 m/s along a straight track. (b) You walk for 1.00 min at a speed of 2.21 m/s and then run for 1.16 min at 4.

Calculate the efficiency of an engine in a power plant operating between 40 ° c and 320 ° c. remember that the efficiency is a decimal number less than 1.

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.

Which of the following situations would produce an average velocity of zero? A) a round-trip to school and back B) a horse galloping in a field C) the criss-crossing path of a flying bug D) a trip, first to the moon, then onto Mars