(a) When rebuilding her car's engine, a physics major must exert 625 N of force to insert a dry steel piston into a steel cylinder. What is the magnitude of the normal force in newtons between the piston and cylinder?

N
(b)
What is the magnitude of the force in newtons she would have to exert if the steel parts were oiled?
N

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

answer: decibel

explanation:

d is the correct answer