What kind of energy does a burning log have? Can't figure this out for homework. It just needs to be a short answer.

J. J. Thomson's experiments provided evidence that an atom A. is the smallest particle of matter. B. contains negatively charged particles. C. has a negative charge. D. has a positive charge.

Two piles of heavy boxes must be lifted onto a shelf. Each pile has 20 boxes and each box is the same size and weight. Tom and claudia are each responsible for a pile. Tom lifts each box straight up from the pile to the shelf.

Some people think that coloured filters add colour to white light. Why is this not correct

If a laser beam is shot straight up from the bottom of a pool so that it intersects the pools surface in a perpendicular fashion, what will the angle of refraction be in the air? A) 0 B) 45 C) 90 D) This cannot ve measured

The orientation in space of the electron is described by which quantum number?

Which is a disadvantage of using wind as an energy source? Check all that apply. It may be unreliable. It is not naturally occurring. It produces a lot of waste. It requires wires to carry electricity. It generates large amounts of electricity.

One step in the production of hydroelectric power involves

A pot is heated on a stove. The water begins to boil rabidly. Which explains why the water is boiling fast?

A galvanometer can be calibrated to read electric A) current B) Voltage C) either of these D) neither of these

Why do responsible consumers use credit and credit cards?