What is occurring when two waves traveling along the same medium meet and cancel each other out?

The bottom sphere is briefly touched by another conducting sphere of the same size, mounted on an insulating handle. Assuming that the charge of the bottom sphere is q before it is touched by the other sphere, what is its charge after it is touched?

Which of newton's laws could we have used to predict that the forces in parts b and e are equal and opposite?

Name three directions in which an object can move

Supposing you were in space ... in a weightless environment, would it require a force to set an object in motion? Explain ... it wouldn't, right? because it's in space, no gravity to pull it, or act upon it ... so it would just float?

if there was no air resistance, how would the rate of fall of a coffee filter compare to the rate of fall of a basketball?

An engineer wishes to design a hydraulic system that will transmit pressure of 10,000 pascals using a force of 15 newton's how are large an area should the input piston have

What is the meaning of heredity

If you push on the sides of a filled balloon, how does the gas pressure inside the balloon change?

A car travels west for 240 km in 4 h. what is the car's velocity?

Dane is holding an 8 kilogram box 2 metres above the ground. How much energy is in the box's gravitational potential energy store? Assume Dane is on Earth, where g = 10 N/kg.