A motorboat heads due east at 25 m/s across a river that flows due north at 12 m/s. a) Calculate the speed of the boat.

d) The river is 150 m wide. Calculate the time it takes the motorboat to reach the

other side.

b) Calculate the distance downstream the boat is when it reaches the other side of the

river.

If the wheels lock when braking suddenly the vehicle: a: loses traction b: lose steering wheel ability c: gain speed slightly d: gain steering ability

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 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 energy added you so much!

Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves