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A 9.58-m ladder with a mass of 22.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 264 N. At the instant the top of the ladder leaves the ground, the ladder experiences an angular acceleration of 1.62 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?
_____ N · m
(b) What is the ladder's moment of inertia?
_____ kg · m2
High-impact activities are hard on the joints and can cause significant damage to the cartilage in the knees. what is the maximum change in thickness of the cartilage
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the resistivity of silver at 20 degrees C is 1.59 x 10^-8 ohms*m and it temp coefficient is 0.0061/degree C. Find resitance of silver wire at 43 degree C
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A paratrooper pilot fell 360 m after jumping without his parachute opening. He landed in a snow bank, creating a crater 1.50 m deep, but survived with only minor injuries. Assume the pilot's mass was 80 kg and his terminal velocity was 50 m/s.
At the Earth's surface a projectile is launched straight up at a speed of 8.5 km/s. To what height will it rise
make a hypothesis about initial and final momentums before playing with the sim.make a data table for the following
A vector A has a magnitude of 52.6 m and points in a direction 19.4° below the positive x axis. calculate the magnitude of the vector C
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