Which component is found only in electric generators and not in electric motors?

a commutator

brushes

an armature

slip rings

A resistor is connected in series with a power supply of 23.90 V. The current measure is 0.60 A. What is the resistance (in Ω) of the resistor?

Which gas is produced in the decomposition reaction of h2o2?

Power transfers energy into objects while work is the rate at which energy is transferred into the object

What causes density currents to form in the mediterranean sea? a. condensation b. evaporation c. transpiration d. upwelling

The scientist who suggested that atoms contain a hard core containing most of the mass of an atom was:

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2