What has a positive charge a comb or an elastic band? Why?

Explain the relationship between pitch and frequency.

As more resistors are added to a series circuit, the current

What is the average speed of a plane that traveled 500 miles in 2.5 hours?

What could result if the liver was not working properly?

How batteries work? What are some possible mterials you could use to make your battery?

A ball rolls down an incline and off a horizontal ramp. Ignoring air resistance, what force or forces act on the ball as it moves through the air just after leaving the horizontal ramp? a). The weight of the ball acting vertically down.

How many atoms are in a sample of 1.83 moles of potassium (K) atoms? A) 3.04 * 10-24 atoms K B) 3.29 * 1023 atoms K C) 1.10 * 1024 atoms K D) 6.02 * 1023 atoms K

If a single mutation turns off the growth of some pairs of legs within an organism, what's most likely affected? a. A substituted gene b. A deleted gene c. A duplicated gene d. A Hox gene

car slows down from 20 m/s to rest in a distance of 85 m. What was its acceleration, assumed constant?

On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3, length 78.4 cm and diameter 2.30 cm from a storage room to a machinist. Calculate the weight of the rod, w. Assume the free-fall acceleration is g