Scientists who study races and their origins are called

A. anthropologists.

B. ethnologists.

C. paleontologists.

D. sociologists.

Undersoil electrical heating systems are used in greenhouses. This system could also be used under a road. A cable just below the ground carries an electric current. One greenhouse system has a power output of 0.50 kW.

What is formed in the shape of a long, low land area between hills or mountains?

If you change the number of loops in a solenoid, what happens to the strength of the magnetic field of an electromagnet?

An 8 kg cat is running 4 m/s. How much kinetic energy does it have?

You have learned of two fundamental units that are not vector quantities. Which are they?

How does Newton's second law apply to an "Egg Drop" experiment?

A 4.0-n puck is traveling at 3.0 m/s. it strikes an 8.0-n puck, which is stationary. the two pucks stick together. their common final speed is:

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures