Other Physics Answers

In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 1.87m

1.87m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim of the disk but turns with it. Through how many revolutions has the disk turned when it has raised the elevator 3.36m

3.36m between floors?

In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 2.9m

2.9m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim of the disk but turns with it. At how many rpm

rpm(revolutions per minute) must the disk turn to raise the elevator at 14.7

14.7 cm/s?

A proton moving horizontally at 3.5×10⁴ m/s enters a uniform magnetic field of 0.075 T directed upward at 30° with the horizontal. Find the magnitude of the magnetic force acting on the proton

An electron travel at 2.0x10^7m/s in a plane perpendicular to a uniform 0.010T magnetic field. Describe its path quantitatively. (Mass of an electrons is 9.1x10^-31 kg, the charge in an electron is 1.6x 10^-19C)

Determine the electrical force of attraction between two balloons that are charged with the opposite type of charge but the same quantity of charge. The charge on the balloons is 6.0 x 10-7 C and they are separated by a distance of 0.50 m.

A rock is thrown straight down with initial velocity of 14, 5 m/s from a cliff .what is the rocks displacement after 2, 0 s

A rock is thrown straight down with initial velocity of 14, 5 m/s from a cliff . what is the rocks displacement after 2,0 s

Your job is to lift 25.0 kg packaged baxes a vertical distance of 1.0 m from the ground onto the bed of a delivery truck. How many packaged boxes would you have to load onto the truck in one minute for

your average output power that goes into lifting the boxes to be 0.11 hp?

A 65 kg mountain climber climbs through a vertical rope at a constant acceleration from rest to a

1 of 1.25 m/s in 10.0 s and feels no appreciable air resistance. How much power must the

speed m/s in 10.0s and alr must

climber imparts on the vertical rope?

Two point charges are seperated by a distance of 100cm. With a magnitude of -10^-6 for both charges. Find the electric force between them