Physics, 29.08.2019 02:20 Hardydonotmess1
A9.76-m ladder with a mass of 22.6 kg lies flat on the ground. a painter grabs the top end of the ladder and pulls straight upward with a force of 254 n. at the instant the top of the ladder leaves the ground, the ladder experiences an angular acceleration of 1.99 rad/s2 about an axis passing through the bottom end of the ladder. the ladder's center of gravity lies halfway between the top and bottom ends.
a) what is the net torque acting on the ladder?
b) what is the ladder's moment of inertia?
Answers: 2
Physics, 21.06.2019 21:00
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.
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Physics, 22.06.2019 01:30
What is the magnitude of the resultant vector round your answer to the nearest tenth
Answers: 2
A9.76-m ladder with a mass of 22.6 kg lies flat on the ground. a painter grabs the top end of the la...
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