Multiple choice.
how does the gravitational force between the earth and the space shuttle on the ground compare with the gravitational force between the earth and the space shuttle in orbit?

a. the force is greater when the shuttle is on the ground
b. the force is greater when the shuttle is in orbit
c. the force is always the same
d. there is no gravitational force in space

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.

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest