A car is initially travelling at 12.1m/s It accelerates at a rate of - 3.9m/s^2 for 7 seconds. What is it's final velocity?

An earthquake on the ocean floor in the Gulf of Alaska induces a tsunami (sometimes called a "tidal wave") that reaches Hilo, Hawaii, 4780 km away, after a time of 9.99 h.

Sails on sail boats take advantage of which type of energy?

A) Is it possible for an object that, object with zero acceleration have velocity? If yes give an example if not give its proof.

The acceleration due to gravity at the surface of a planet depends on the planet's mass and size; therefore other planets will have accelerations due to gravity different from 9.8 m/s2.

Nonexist venus is much farther from the sun than mercury is. yet average temperatures on venus's surface are much higher than those on mercury. explain why

Cómo se visualizan las moléculas en la ciencia y por qué necesitamos una representación visual

How many neutrons are present in an atom of iron-54? A) 26 B) 28 C) 30 D) 54

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. What is another name of the type of wave that transfers energy in this way?

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?