Help asap! will give brainliest to somebody who helps! John uses a hammer to pull a nail from a plank. The handler of the hammer is 30 cm. The nail puts the 450-N resistance force 2 cm from the pivot. How much force do you need to pull the nail out?

What are some properties of transverse waves?

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap