21. A positively charged rod will have the strongest attraction for

1. Describe the vibration caused by primary waves. 2. Described the vibration caused by secondary waves.

A bowling ball has a mass of 5kg. what happens to tis momentum when its speed increases from 1 m/s to 2 m/s

If two identical trees are cut down, one with a hand saw, and one with an electric saw ... Which would involve more work? Which would involve more power? Why?

What is the pressure on a fish 10 m under the ocean surface

A student decides to give his bicycle a tune up. He flips it upside down (so there's no friction with the ground) and applies a force of 20 N over 1.2 seconds to the pedal, which has a length of 16.5 cm. If the back wheel has a radius of 33.

Does the elf owl's small size allow it to live in cacti

If grapefruit juice has a ph of 3.0 and egg white have a ph of 8.0, which contains more h + ions? how many more?

Consider a single photon with a wavelength of λ, a frequency of ν, and an energy of e. What is the wavelength,? Consider a single photon with a wavelength of λ, a frequency of ν, and an energy of e.

You give a shopping cart a job down the aisle the cart is full of groceries and has a mass of 18 kilograms the cart accelerates at a rate of 3 m/s how much force did you exert on the cart

A solid spherical insulator has radius r = 2.5 cm, and carries a total positive charge q = 8 * 10-10 c distributed uniformly throughout its volume. find the magnitude of the electric field |e| at a radius of 5 cm from the origin (i. e.