A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?

What type of air mass would form over the northern atlantic ocean?

Find the sum of the vectors:10km west. 5 km south

In what ways are plasmas similar to gases? What makes plasmas different than gases?

How can resistance be useful and where can they be useful?

True or false scientific inquiry incorporates many scientific methods

Since you've determined that the power supply is a 700W dual rail, what does that make the maximum output power?

A 2 m length of an aluminum pipe of 240 mm outer diameter and 10 mm wall thickness is used as a short column to carry a 640? centric axial load. Knowing that? = 73? P? and? = 0.

A python can detect thermal radiation from objects that differ in temperature from their environment as long as the received intensity of thermal radiation is greater than 0.60 W/m2. Your body emits a good deal of thermal radiation.

A planet has a mass of about 6.4 x 1023 kg, and its moon has a mass of about 9.6 x 1015 kg. if the magnitude of the gravitational force between the two bodies is 4.6 x 1015 n, how far apart are the planet and its moon? a. 9.4 x 106 c. 4.6 x 109 b. 2.

Is burning a nonrenewable natural gas a chemical change