What is the pressure of the gas in this mercury manometer if h = 63 mm and atmospheric pressure is 773 mmhg?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.