A pumpkin is sitting on top of a wall that is 20 m tall. The pumpkin has a weight of 15N. What formula will you use to find the gravitational potential energy of the pumpkin? {blank}. Calculate the gravitational potential energy. {blank}

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *