Calculate the pressure exerted on the heel of a boy's foot if the boy weighs 320 N and he lands on one heel which has an area of 0.16 m²

What does Newton's second law of motion state

If you push a crate horizontally with 100 N across a 10-m factory floor and the friction between the crate and the floor is a steady 70 N, how much kinetic energy does the crate gain?

The force behind attracting atmosphere to the earthly is ...

Nicholas paddles his canoe downstream from the lodge to the park in 44 hours and then back upstream to the lodge in 55 hrs. If the distance from the lodge to the park is 3030 miles, find Nicholas' speed in still water and the speed of the current.

Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly one photon of this microwave radiation?

Dimensional analysis worksheet Convert 3.42 g into kilograms

If you get into a completely filled buthtub and you weigh 100 lbs, how much water will overflow? why?

A commercial jet flies at 550mi/hr for 3000mi. For how much time does the jet fly?

If almost any system in stable equilibrium is slightly disturbed, it will then exhibit simple harmonic motion because 1. the change in potential energy is proportional to the cube of the displacement from the equilibrium position. 2.

Is the following statement true or false? Nuclear fission occurs naturally in stars.