Physics, 21.10.2020 16:01 tammycute01

A lever has a total length of 12 meters with a fulcrum at the exact center of the lever. Which best describes how to double the mechanical

advantage of the lever?

O Move the fulcrum 2 meters away from the side on which the force is applied.

Move the fulcrum 2 meters toward the side on which the force is applied.

O Move the fulcrum 4 meters away from the side on which the force is applied.

O Move the fulcrum 4 meters toward the side on which the force is applied.

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 23:00

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Answers: 1

Answer

Physics, 22.06.2019 00:00

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Answers: 2

Answer

Physics, 22.06.2019 10:10

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Answers: 2

Answer

Physics, 22.06.2019 14:10

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

Answers: 1

Answer

You know the right answer?

A lever has a total length of 12 meters with a fulcrum at the exact center of the lever. Which best...

Questions