A soccer player sprinting down the field demonstrates which form of energy?

A 0.24-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. the well has a depth of 4.8 m.

A loudspeaker diaphragm is producing a sound for 2.2 s by moving back and forth in simple harmonic motion. The angular frequency of the motion is 3.95 x 104 rad/s. How many times does the diaphragm move back and forth?

1. Which electromagnetic wave do humans use the most? 2. What waves are used in cellular phones (iPhones, mobile units, smart phones) ? 3. Write the negative impact of these waves on human health. 4.

Hector has a piece of pure substance that reflects light and bends or dents when dropped. if he takes it to a factory that makes electrical wires it could? a. be turned into wire because non-metals are ductile but not shiny b.

Which can be used to determine if an electromagnet is working

The type of current supplied by a battery in a flashlight is an alternating current. True or False?

A. What is the change in internal energy if 500 J of heat is added to a system and 100 J of work is done by the system? Show your work. b. Describe two sets of conditions of heat and work that cause a decrease in internal energy. c.

Which of the following radioactive emissions is the most penetrating? alpha particles beta particles gamma rays

A car has a unibody-type frame and is supported by four suspension springs, each with a force constant of 47100 N/m. The combined mass of the car's frame and everything inside it (the engine, the seats, the passengers, etc.) is 1190 kg.

A ball is thrown upward with an initial velocity of 20 m/s how high will it go