What do the celsius scale and kelvin scale have in common? a. both have the same temperature difference between degrees. b. both are related through a common temperature for boiling water. c. both use zero degrees as the freezing point of water. d. both were invented before the fahrenheit scale.

What is work? how much work is done to move an object 0 meters?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.