In which situation is no work being done?

a person carrying a box from one place to another

a person picking up a box from the ground

a person pushing a box from one place to another

a person pulling a box from one place to another

Based on the field lines, what are the charges of the objects? X: positive Y: negative X: negative Y: positive X: negative Y: negative X: positive Y: positive

Simple diffusion and facilitated diffusion are related in that both

An fm radio station found at 103.1 on the fm dial broadcasts at a frequency of 1.031 Ã 108 sâ1 (103.1 mhz). what is the wavelength of these radio waves in meters?

Hurry!1 give me a paragraph on friction include examples of friction

In last week's Homecoming victory, All Conference, the star halfback of South's football team, broke a tackle at the line of scrimmage and darted upfield untouched. He averaged 9.8 m/s for an 80-yard (73 m) score.

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter