A woman drives a golf ball off the tee to a speed of 28 m/s. The mass of the ball is 45 g and the time of contact was 6.0 ms. What is the change in momentum of the ball? (+1.3 kg m/s) B. What is the impulse? (+1.3 N⋅s)
C. What was the average force exerted by the club on the ball? (+210 N)
D. If the angle of the flight was initially 20ofrom the horizontal, how far would the ball go before it landed? (51 m)
Please can someone show the work?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Decreased sensitivity to an unchanging stimulus is known as