What is an advantage of using an electromagnet rather than a regular magnet?

A common property of terrestrial planets is that : Select one: a. they all rotate in the same direction as they orbit b. they all have the exact same densities c. they all have satellites d. they all have iron cores

Disadvantages of energy

Ask Your Teacher In a choir practice room, two parallel walls are 4.00 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.680 m away from it. To enable her to see the choir, a flat mirror 0.

How is radiant energy from the sun converted into electricty

A ball sitting on the top of a table has potential energy but no kinetic energy. How do potential and kinetic energy change as the ball falls off the table to the floor? A. Its potential energy increases, and its kinetic energy decreases. B.

Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to decay? A) 106,000 years B) 159,000 years C) 212,000 years D) 265,000 years

A trained attack octopus can crawl at a velocity of 0.3m/s. If the octopus crawls towards its victim for 30 seconds, what is the change in position (or distance) that the octopus crawled?

Which profession is responsible for a planes design? A) Aerospace engineering B) Aerospace mechanic C) Pilot D) Flight attendant

Distracted driving laws have been put in place due to scientific studies that have shown the dangers associated with wireless technology. DDT. plastics. vaccines.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, the current through the resistor is (1) halved (3) quartered (2) doubled (4) quadrupled