An electric car is being designed to have an average power output of 4,600 w for 2 h before needing to be recharged. (assume there is no wasted energy.)

how much energy would be stored in the charged batteries? =j
the batteries operate on 80 v. what would the current be when they are operating at 4,600 w? =a
to be able to recharge the batteries in 1 h, how much power would have to be supplied to them? =w

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.

What is a possible result of higher air temperature caused by global warming

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply