If 60 lbs of force must be applied to the valve for it to open, how much upward force must push rod X apply for the valve to open?

What is an item in which magnetic domains can be aligned and a magnetic field induced for a short period of time

What is neccessary for a magnetic field to create electric current in a copper coil? a. the magnetic field must be moving or changing b. the magnetic field must not be moving c.

Matter is anything that has mass and takes up space has a temperature that you can measure weighs more than one kilogram can be seen without a microscope @iGreen

A 1.29 kg book in space has a weight of 7.77 N. What is the value of gravitational field at that location?

What is the average speed and the average velocity of a car that is one complete don't know if the distance traveled was 120 m and it took five seconds to do the complete donut?

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?