Lance arrives early at the slc airport (with flowers and balloons in hand) to welcome home his "friend" from a mission. her plane is delayed. while waiting, he notices that it takes 2 minutes 47 seconds to get down the hall if he stands on the moving sidewalk. while walking on the floor (not on the moving sidewalk), it took him 93 seconds. if he walks while on the sidewalk how long will it take him?

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.

See the attachment and solve question 5th

Which statement best describes the direction of the buoyant force on any object? a. opposite the force of gravity b. in the same direction as the weight c. in the direction of motion of the object d. opposite the direction of motion of the object