Seja uma carga Q=1.2*10 (-8) C no vácuo, distando 40 cm de um ponto M e 50 cm de um ponto N. Determine os pontencias no ponto M e no ponto N. (Dados K=9*10^9 Nm^2/C)

A police car in a high-speed chase is traveling north on a two-lane highway at 35.0 m/s. In the southbound lane of the same highway, an SUV is moving at 18.0 m/s. Take the positive x-direction to be toward the north.

The magnitude of the centripetal force acting on an object traveling in a horizontal, circular path will decrease if the (1) radius of the path is increased (2) mass of the object is increased (3) direction of motion of the object is reversed (4)

As the world population continues to rise, the demand for energy also continues to rise. Which type of fuel does little to pollute Earth's atmosphere?

What is the speed of a 0.145kg baseball if its kinetic energy is 109J?

A cat runs at a speed of 2 m/s to the north for 3.1 seconds. What is the displacement of the cat in this time? OA. 5.3 m north O B. 3.1 m north O C. 6.2 m north O D. 5.1 m north

Quantum physics would most likely be needed to understand the motion of which of the following? A. an atom B. a cell C. a ball D. a galaxy

Sharon throws a 0.20 Kg with an acceleration of 10 m/s/s. (a) What force did she exert on the ball? (b) What force did the ball exert on her?

What are three ways that extra carbon is getting to the atmosphere?

A girl runs 20.9 m/s East for 13.7s. How far does she go?

Is it possible to have a weak acid or base?