How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

What is the relationship between mass and weight on earth?

Imagine you are holding an apple. Does this apple have energy? how do you know?

A football is kicked at an 50 degree angle to the horizontal, travels a horizontal distance of 20m before hitting the ground. what is the initial speed?

A fire truck drives 3 miles to the east then 1.2 miles to west what is the displacement of the truck

Why is light refracted when it passes from air to water?

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