Physics, 07.04.2020 17:27 belen1266

A spiral staircase in a building is in the shape of a helix of radius meters. Between two floors of the building, the stairs make one full revolution and climb by meters. A person carries a bag of groceries up two floors. The combined mass of the person and the groceries is kg and the gravitational force is downward, where is the acceleration due to gravity, in meters per second squared. Calculate the work done by the person against gravity in joules. Enter the exact answer.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 21:00, liluv5062

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

Answers: 1

continue

Physics, 22.06.2019 04:00, Carly3393

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

Answers: 2

continue

Physics, 22.06.2019 14:00, astigall4272

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Answers: 1

continue

Physics, 22.06.2019 14:50, MoogleCaliS

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.

Answers: 2

continue

You know the right answer?

A spiral staircase in a building is in the shape of a helix of radius meters. Between two floors of...