Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

A 230-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,100 A. If the conductor is copper with a free charge density of 8.

if you had a single pure mystery substance and cut it half over and over again until you a bunch really had two other different mystery substances that original substance would have been an

Which best describes acceleration? distance over time speed in a particular direction change in velocity over time

When Earth catches up to a slower-moving outer planet and passes it in its orbit the planet a. exhibits retrograde motion. b. slows down because it feels Earth's gravitational pull. c. decreases in brightness as it passes through Earth's shadow. d.

What is formed when the rock making up a tectonic plate breaks and moves Select one of the options below as your answer: a. a fault b. an open zone c. a subduction zone d. uplifted land

Which type of reaction will for a chemical bonded combination

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon