Which is not part of a DC motor?

coil of wire

magnet

compass

brush

commutator

Which charge kept the electrons in the atom?

A car acquires a velocity of 72km/h in 10sec starting from rest. find it's A. acceleration B. average velocity C. distance travelled D. an object undergoes an acceleration travelled in 1 sec

Car 1 of mass 1,715kg is sitting at an intersection. Car 2 of mass 2,780kg read ends Car 1, knocking it forward at 8 m/s. If Car 2 is at rest after the collision, how fast was it going when it hit Car 1?

What erases the impact craters on earth and is responsible for most of the landforms that we see?

Waves that move through matter only are called

Which of the following statements is good advice to prevent becoming overly emotional? A. There is no way to prevent becoming overly emotional. B.

An ant is on the pendulum bob of a clock. What would be its displacement in one time period?

Every charged particle in the universe is surrounded by its own? A. both an electric and gravitational field B. Gravitational field C. Charged field D. Electric field E. Both and electric and charged field

How does an iron nail become a magnet when it is placed in a strong magnetic field

The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m3. Convert this volume to liters and express the result in standard exponential notation?