The force exerted by electrically changed objects

Identify the incorrect statement about a single motor unit. - Fine motor skills depend on the development of small motor units. - The smaller the number of muscle fibers, the more precise the movement.

Why do the astronauts float inside space stations?

Which of these is a possible disadvantage of using wind as a source of energy? O A. Wind turbines can be placed on existing farms. O B. Wind energy is sustainable. O C. Wind energy creates new jobs. O D. Wind turbines take up a lot of space.

In a longitudinal wave moving along a spring, what are areas where the coils are farthest apart called?

50 The emissivity of galvanized steel sheet, a common roofing material, is s = 0.13 at temperatures around 300 K, while its absorptivity for solar irradiation is aS = 0.65.

Protons and neutrons strongly attract when they

How far is Jupiter from the sun?

Steam moves into a cylinder of a steam engine at a constant pressure and does 2.34 J of work on a piston. The diameter of the piston is 3.4 cm and the piston travels 4.6cm. What is the pressure of the steam?

Identify each type of simple machine.

A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?