A 50 kg wooden crate rests on a wooden ramp with an adjustable angle of inclination. At what angle will the crate just begin to slip if the static coefficient of friction is 0.35? Round your answer to one decimal place.

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 are the applications of electromagnetic waves

Why don't you see your reflection in water with waves or repples