Physics, 19.12.2020 08:30 serenityarts123

calculate force. find the force needed to lift a 2000 n weight using a machine with a mechanical advantage of 15

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 19:00, dasiaflowers85

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

Answers: 3

continue

Physics, 21.06.2019 19:30, krudmagreaner

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

Answers: 1

continue

Physics, 22.06.2019 16:00, trevorhenyan51

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Answers: 1

continue

Physics, 23.06.2019 01:30, harleycrider2251

Which statements did both aristotle and ptolemy assume? check all that apply.

Answers: 1

continue

You know the right answer?

calculate force. find the force needed to lift a 2000 n weight using a machine with a mechanical adv...