How is an electric current carried?

by moving current in one direction

by changing directions of the current

by moving electrons in a wire

by changing electrons into current

An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg, and the two objects stick together.

In an air conditioner, a substance that easily evaporates and condenses is used to transfer energy from a room to the air outside. when the substance evaporates, a. energy is transferred by conduction. b.

Which of the following is Not true about Mechanical Waves? A they carry energy B they transfer matter C they can be longitudinal D they require a medium

The speed of a sound wave is slower than an electromagnetic wave is faster than an electromagnetic wave is equal to an electromagnetic wave cannot be measured

An ethernet cable is 4.15 m long and has a mass of 0.220 kg. A transverse pulse is produced by plucking one end of the taut cable. The pulse makes four trips down and back along the cable in 0.900 s. What is the tension in the cable?

What is a subduction zone? a place where one plate is pushed down under another, such that it melts into the mantle a place where two plates collide and mountains form a place where hot material from the core rises through the mantle a place where

The half-life of cobalt-60 is 5 years. How old is a sample of cobalt-60 if only one-eighth of the original sample is still cobalt-60? 5 years 10 years 15 years 20 years

When an object has a net force of zero, then it is said to be in what?

How is an electric current carried? by moving current in one direction by changing directions of the current by moving electrons in a wire by changing electrons into current

Which of the following is the term for a very fine soil that is high in nutrients, that is easily compacted, and that often occurs in areas with regular flooding? clay loam peat silt