Determine the mechanical energy for this object: a 1-kg ball sits on a 10-meter high cliff.

A. 10 J

B. 98 J

C. 980 J

D. The ball isn't moving, so the mechanical energy is zero

if force is applied to a body is zero then what happen to the state of body a. rest b. motion c. maybe rest or motion d. none

In a nuclear reaction, mass must be lost to produce energy.

A weightlifter lifts a 130-kg barbell a distance of 1.3 m. What is the work she does on the barbell?

What is the glue that holds atoms together in compounds

When in orbit, astronauts experience weightlessness. What is this caused by? The astronauts have no mass in space. Gravitational forces do not occur in space. The astronauts experience no contact (normal) forces with their surroundings.

An object has an acceleration of 24 m/s/s. How long would it take the stationary object to reach a velocity of 6.8 m/s?

What is normal distribution in statistics?

Which of the following water samples would be considered acidic

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.