A student coils a copper wire around a bar magnet. What action will cause the device to generate electricity?

A bike travels 4 miles in half an hour, what is its speed?

Which of the following correctly identifies a voltage source and its method of developing electric potential? a. primary cell-heat action on a device b. thermocouple-chemical action c. dry cell-chemical action d. generator-genetic action

An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a 1 m high table. The bullet remains in the block, and after the impact the block lands 2.00 m from the bottom of the table.

Suppose the price elasticity of supply for gasoline in the short run is estimated to be 0.4. Due to an unexpected surge in the demand for gasoline, the price of gasoline increases by 20 percent. As a result, the quantity supplied of gasoline will|?

At 2.5 seconds, the helicopter has a kinetic energy of 20 J. What is its mechanical energy at that time?

The diagram shows the field lines near the poles, X and Y, of two magnets Based on the field lines, what are the poles of the magnets? O X: north Y south X: south Y north X north Y north Х Y X south Y south

Why is it safe to watch an eclipse of the Moon but not an eclipse of the Sun

A student holds two pieces of paper at the top, 10 cm apart. The flat sides of the papers face each other. What happens when the student uses a straw to blow a stream of air between the papers?

Which of the following best describes the inheritence of sex-linke trait? A. reccessive alle carried by females that affecfts only males. B. A allelle carried by females that affects only males. C.

A sound wave can be used to shatter a wine glass. This can be explained by which of these? A) sound is a compression wave. B) the sound will interfere with the molecules in the glass. C) the sound resonantes at the natural frequency of the glass.