If two waves with identical crests and troughs meet what is happening?

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)