Explain how you would determine how much error there is between a vector addition and the displacement of the actual trip taken. Why arent vectors true straigh-line paths in the real world?
Would you expect the vector addition to be larger or smaller than the actual. trip taken? Why?

if someone could answer and explain it would be great. Thanks in advance!

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.

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.