According to Newton's first law of motion, what does it take to move an object at rest?

A) a change in gravity

B) a balanced force

C) an unbalanced force

D) a force equal to the force keeping the object at rest, but in the opposite direction

Which equation would you need to rearrange to calculate the specific heat of an object

Why does a star grow larger after it exhausts its core hydrogen?

True or False: Unlike a fixed pulley, a moveable pulley multiplies the input force

A material the resists the flow of electrons is called a

A box moves to the right along a rough, wooden surface. In which direction does the box experience a frictional force?

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a