Aspring pendulum consists of mass m attached to one end of a massless spring with a spring constant k. it is constrained to move in a vertical plane. (a) draw a diagram to show all the necessary coordinates of the mass-spring system. (b) write the coordinates and velocity components of the mass. (c) find the kinetic energy and potential energy of the svstem

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

In a system, when potential energy decreases, then entropy also decreases. true false

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.