A man on a high cliff He threw the stone down at a speed of 10m/s The stone takes 5s, so it falls to the ground. find the height of cliff.

If it takes a cheetah 0.25 seconds to go from 10m/s to 15 m/s what is the cheetahs acceleration

What is the definition of energy? heat from the sun it can be anything and everywhere food and water the ability to do work

Three liquids are at temperatures of 5 ◦C, 25◦C, and 34◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 17◦C.

Which of the following is a closed system or very close to a closed system? A. a block of iron sealed in a vacuum chamber B. a dish of ice cream sitting in the sunlight C. a stick of dynamite during an explosion D. a stalled car in a snowstorm

Find a unit vector in the direction in which f increases most rapidly at P and give the rate of chance of f in that direction;

How is radioactivity produced

A theory is an explanation of observable facts and phenomena. True of false.

What are types of astronomy?

What is the ampere a measure of?

How do you know that a speedometer tells you the instantaneous speed of a car?