Gray whales travel down California's coast as they migrate between cool waters off Alaska to the warmer waters along Mexico. In which area do you think more thermal energy would move from the whale to its environment? Explain.

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

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

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.)