What is the effeciency of the machine that has an input of 120 and an output of 96?

Consider a locomotive and the rest of a freight train to be a single object. Suppose the locomotive is pulling the train up a hill.

What is the magnitude of g at a height above Earth's surface where free - fall acceleration equals 6.5 m/s2?

How do you calculate the average speed of an object?

Which is true about Pluto? A. It is the only body in the solar system without an atmosphere. B. It orbits near the Kuiper belt. C. It has a nearly circular orbit. D. It is larger than Titan, Mercury, and the moon.

Which has the greater kinetic energy? A large truck traveling 40 meters per second or a small car?

Which of the following describes effort force?

What does the chemical formula CaCl2 show about the compound it represents? It is made up of one element. It is made up of two elements. It is made up of three elements. It is made up of four elements.

An electron with kinetic energy of 2000 eV (1 eV = 1.602 x 10-19 J) is fired horizontally across a horizontally oriented conducting plate with a surface charge density + 4.00 x 106 C/m2.

A vertebra is subjected to a shearing force of 535 N. Find the shear deformation, taking the vertebra to be a cylinder 3.00 cm high and 4.00 cm in diameter. The shear modulus for vertebrae is 8.00 * 1010 N/m2.

If radio waves cannot be reflected from the Sun, how can radar be used to find the distance from Earth to the Sun?