Which o the following phrases bet describes a physical model?

A. An exact copy of an object, system, or process

B. A chemical formula

C. A graph or equation

D. A representation of an object, system, or process

What does it mean to have a velocity of zero?

Generate an explanation for the following formula: P = I2R

What naturally accurring radioisotope is used as the fuel for a nuclear reactor

When light travels from one medium to another, its direction can change. This is called

A magnet is pushed into the center of a wire loop and then stops. what is the current in the wire loop when the wire stops moving? explain.

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.

What must be your car's average speed in order to travel 235km in 3.25 hours?