An object of mass 1.2 kg is moving with a velocity of 2.0 m / s when it is acted on by a force of 4.0N. The velocity of the object increases to 5.0m / s. For what period of time does the force act on the object? A=0.90s B=1.1s C=1.5s D=3.6s

The gravitational force between two objects is 1600 and what will be the gravitational force between the objects if the distance between them doubles?

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?