If you are asked to determine an object's speed, what information must you have?

Name one situation in which gravitational potential energy might be useful and one where it might be dangerous

You kick a soccer ball of mass 0.41 kg. the ball leaves your foot with an initial speed of 23 m/s. (a what is the magnitude of the impulse imparted to the ball by you?

Pure water has a hydrogen ion concentration of 1 x 10 (-7) M and a ph of 7. A student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10 (-3).

A very long, straight wire has charge per unit length 3.50*10^-10 C/m. At what distance from the wire is the electricfield magnitude equal to 2.90 N/C?

Cardiac muscle causes movement in the A: Bone B: Tendon C: Ligament D: Organ

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?