subject
Physics, 16.10.2021 01:00 itsmichaelhere1

a uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. the ladder weighs 160 n. the coefficient of static friction between the foot of the ladder and the ground is 0.40. a man weighing 740 n climbs slowly up the ladder.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 21:30
Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?
Answers: 2
question
Physics, 22.06.2019 00:20
Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
question
Physics, 22.06.2019 04:30
Idon’t quite understand this problem
Answers: 1
question
Physics, 22.06.2019 12:00
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
You know the right answer?
a uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m fro...
Questions
question
Spanish, 24.10.2021 19:50
question
Mathematics, 24.10.2021 19:50
question
Mathematics, 24.10.2021 19:50
question
World Languages, 24.10.2021 19:50
question
Mathematics, 24.10.2021 19:50
question
Mathematics, 24.10.2021 19:50
question
Health, 24.10.2021 19:50
question
Computers and Technology, 24.10.2021 19:50
question
Mathematics, 24.10.2021 19:50