Suppose, a soccer player kicks the ball from a distance 30m toward the goal. find the initial speed of the ball if it just passes over the goal. 2.4m above the ground, given the initial to be 40° above the horizontal

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

An electron moving at 5.06 103 m/s in a 1.23 t magnetic field experiences a magnetic force of 1.40 10-16 n. what angle does the velocity of the electron make with the magnetic field? there are two answers between 0° and 180°. (enter your answers from smallest to largest.)