A2.5 x 10^5 is used for 26.4 s to pull a boat straight toward shore how far does the boat move toward shore if a force of 4.2 x 10^4 is applied by the motor

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

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