More or less friction glass

In 2012, Germans paid 1.65 Euros per liter of gasoline. At the same time, American prices were $3.90 per gallon. a. How much would one gallon of European gas have cost in dollars? b.

Electromagnets can be used to lock doors. How could an engineer increase the strength of an electromagnetic lock? Check all that apply A. by increasing the current through the wire B. by reversing the current through the electromagnet C.

4. The amount of distance you need to stop the car increases with specu. A. true B. false

You accidentally drop a book down a stairwell. Assuming no air resistance, How fast will the book be moving after 1.1 second?

A 31.7 kg kid, initially at rest, slides down a frictionless water slide at 53.2º. How fast is she moving 3.45 s later?

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals

Magma appears to be rising underneath the mid-oceanic ridges. a. True b. False

The energy required to crack a material

two punds of water vapor at 30 psia fill the 4ft3 left chmaber of a partitioned system. The right chmaber has twice the volume of the left and is initially evacuated.