The commutator of a universal motor connects each armature coil to

a. the rotor.

c. the gearbox.

b. the shaft.

d. a brush.

How do people grow what makes them grow

2. What type of motion objects that fall under the pull of gravity?

Adding heat to a liquid causes which of the following physical changes? A. increases mass B. increases density C. decreases density D. no physical change

When a 0.1-kilogram pendulum bob reaches the top of its swing, how much kinetic energy does it have? a. 0j b. 0.1j c. 4.9j d. 9.8j

4. Climbing up a tree Charlotte and her lunchbox have a weight of 650 N and she climbs a height of 22 m-how much work does she do in climbing the tree?

When a fork is placed in a hot piece of lasagna, thermal energy is transferred up the fork by ...

Levi observed properties of four different waves and recorded observations about each one in his chart.

A rocket is shot straight up from the earth, with a net acceleration (acceleration by the rocket engine minus gravitational pullback) of during the initial stage of flight until the engine cut out at sec.

Which moon has a thick atmosphere made mostly of nitrogen?

J. J Thompson proposed that atoms were made up of positively charged particles with electrons scattered into them. How did he reach this conclusion?