What elements are in the iron triad?

In a simple electric circuit, a 110-volt electric heater draws 2.0 amperes of current. The resistance of the heater is

What enables a fish to float up and down in the water

Which of the following statements about sidewall markings is correct? a. The load index is given as a letter. b. The traction and temperature ratings are based on the speed rating of the tire. c.

A net force of 10.0 N causes an object to accelerate at 20.00 m/s^2. What is the mass of the object?

Which statement is a result of a substance melting. A) The attractions between the particles are stronger. B) The average kinetic energy of the particles decreases. C) The particles form a rigid structure where the atoms vibrate.

In our physical world, by far, the most abundance free charge in the universe is the electron, which has a negative charge. What do we mean, then, when we say that the surface of an object is positively charged?

You're going camping and are thinking of carrying 3 gallons of water. How much does the water weigh, in units of pounds?

A student is performing a double-slit experiment to determine the wavelength of a light source. She has measured the distance between dark bands and the distance between the slits and the screen.

If a substance cannot be broken down chemically into smaller substances it is A) An element B) a compound C) an atom D) a molecule

Describe the general characteristics of the nearest stars. (Size, luminosity, color, etc., do not include specific stars)