Which force is most directly responsible for radioactive beta decay? a. strong interaction b. gravitational interactions c. weak interaction d. electromagnetic force

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Select all the correct answers. which three statements about electromagnetic radiation are true?