A block of mass 4 kg slides down an inclined plane inclined at an angle of 30o with the horizontal. Find the acceleration of the block a) assuming no friction between the block and the plane. b) in the presence of friction given that coefficient of kinetic friction between block and the plane is 0.4.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Why are graphs useful when interpreting data

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d