A pebble is dropped from a cliff. Neglecting air resistance, if the rock falls for 4 seconds. How fast is it moving?

What is the potential energy of a spring that is stretched 0.15 m from equilibrium and has a spring constant of 0.55 N/m?

Magnetic fields are produced by particles that are (1) moving and charged (2) moving and neutral (3) stationary and charged (4) stationary and neutral

Static electricity is an excess of neutrons. A True B. False

What is a parallelogram

Electromagnetic induction is the production of a voltage across a conductor when it is exposed to a varying magnetic field. This process is essential in which of these devices? A) A diode. B) A capacitor. C) A transformer D) A potentiometer.

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.