Physics, 02.01.2021 06:50 dbenjamintheflash5
What is the efficiency of a machine that lifts a load of 12.0 kg a vertical distance of 5.00 m in 30.0 s after being supplied with 70.0 W of power? Explain the steps you take to get the answer.
Answers: 3
Physics, 21.06.2019 21:00, jjxt126
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 22.06.2019 01:10, joejoefofana
Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?
Answers: 3
Physics, 22.06.2019 01:40, onegirl435
Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger
Answers: 1
What is the efficiency of a machine that lifts a load of 12.0 kg a vertical distance of 5.00
m in 3...
Mathematics, 15.12.2020 19:20
Mathematics, 15.12.2020 19:20