A device used to open and close an electric circuit is a (n)

a. light bulb.

b. energy source.

c. switch.

d. resistor.

The resulting net force of an object is represented below. →10 N Which most likely represent the forces acting on the object?

A building that is utilizing large windows on its southern side for heating is an example of the use of

technician A says oil is primarily used to collect contaminants and carry them to the oil filter. Technician B says a breakdown in lubrication occurs on cold startup. Who is correct?

A man pushes down on a lever with 45 N and the lever moves 1.5 meters. The other end of the lever lifts a 87.6 N box. 4 meters. What is the efficiency of the lever?

Which literal equations are equivalent to F = ma? A.) m = F x A B.) m = F/A C.) A = m/F D.) A = F/m

Hat is a scientific theory? Make up your own scientific theory.

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east

What was the total weight (lbf) of chocolate in the vat? the specific gravity of chocolate is approximately 1.24?

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

What is the explanation for feather beds being warm