A friend suggests that Valerie might make the shot put go further if she throws it at the same speed but at an angle of 30° to the horizontal, as this will cause the shot put to travel
faster horizontally. Explain whether the friend's advice is correct.

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

Frequency of electromagnetic waves that a radio station is assigned is called