Which rock is made mostly of dark, fine-grained silicate minerals, chiefly plagioclase feldspar and pyroxene, and magnetite?

What is the continuous flow of electric charge? A) voltage B) resistance C) potential difference D) current

How are sound waves different from light (and other electromagnetic, waves?

What is a science naming convention

Find the intensity of the electromagnetic wave described in each case. (a) an electromagnetic wave with a wavelength of 630 nm and a peak electric field magnitude of 7.3 v/m. w/m2 (b) an electromagnetic wave with an angular frequency of 7.

You are performing an experiment that requires the highest possible energy density in the interior of a very long solenoid. Which of the following increases the energy density? (Select all that apply.) a.

Range of motion is the distance an object can travel when separated from another object. T/F

If 500 thousand btus of energy are available to raise the temperature of a water boiler from 20°f to 100°f, how many gallons of water can be added to the boiler?

A woman pushes a 27 kg lawnmower at a steady speed. She exerts a 180 N force in a direction 31 degrees below the horizontal. The acceleration of gravity is 9.8 m/^2 Find the magnitude of the vertical force this lawnmower exerts on the lawn.

which will have the greatest amplitude and pitch when shaken, a jar half fill with water and 2 marble or a jar with no water and 2 marbles.

What is the total number of atoms in the formula below? NH3 one two three four