Does an electromagnet use an electric current?

Which statement is accurate with regard to migration to metropolitan areas from 1995 to 2000?.

In the forest (phrase-noun, but no subject and no verb) Smashing against the bat (phrase-verb but no subject) Before our first class (phrase) After the snowstorm (phrase) I am aware of the error (clause-subject and verb) When the saints go marching

What is the enthalpy change (in kj) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density of 1.25 g/ml by 9.20 °c? (the specific heat of the solution is 3.74 joules/gram-k.) ?

A car is stopped at a traffic light. it then travels along a straight road such that its distance from the light is given by x1t2 = bt2 - ct3, where b = 2.40 m>s2 and c = 0.120 m>s3.

The energy needed to get a reaction started is the A. adhesion energy. B. activation energy. C. cohesion energy. D. chemical energy.

A database that is flexible and easy to use was recently installed. the data is stored in rows and columns much like a spreadsheet. what type of database must have been installed?

What did johannes kepler contribute to the study of planets

Baseboard heaters are basically electric resistance heaters and are frequently used in space heating. A homeowner claims that her 5-year-old baseboard heaters have a conversion efficiency of 100%.

Explain why the brakes of a car get much hotter than the brakes of a bicycle?

If 10,000 J of work was done to raise a 225 kg box, how high was the box raised?