Object A has a weight of 15.6 N and a coefficient of friction of 0.59. Object B has a weight of 13.8 N and a coefficient of friction of 0.70. Which object would require more force to move? Support your answer with the Math. Show work. please answer asap

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?