How can you tell whether something has kinetic energy?

Calculate the moment of inertia of uniform circular disc of mass 500g, radius 10cm about 1. the diameter of the disc. 2. the axis tangent to the disc parallel to its diameter 3. the axis through the center of the disc and perpendicular to its plane

What happens to toy cars when the second hill is set to 100 cm? They get stuck between the first and second hill. They roll over the second hill and break the egg. They roll over the second hill but only the 100 g car breaks the egg.

A hot air balloon is rising straight up at a constant speed of 7 m/s. when the balloon is 12.0 m/s above the ground, a gun fires a pellet straight up from ground level with an initial speed of 30.0 m/s.

A cue ball initially moving at 2.5 m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue ball's final speed is 1.2 m/s at an angle of? With respect to its original line of motion.

the sample of an ideal gas is in a tank of constant volume the sample absorbs heat energy so that its temperature changes from 300 to 600 K if v is the average speed of the gas molecules before the absorption of heat and v is their average speed

Why do we eat today

Which statement about ammeters and voltmeters is true? A. Current and voltage are the same throughout a circuit so where you place the ammeter and voltmeter doesn't matter. B.

Teens realize that things may be "shades of gray" after they enter Piaget's social stage. identity crisis stage. menarche stage. formal operational stage.

Technician A says that fractured rods have a unique mating surface and that only the cap that was fractured is the one that will fit that rod. Technician B says that a powdered metal rod is less expensive, lighter, and as strong as a forged rod.

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?