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A 73 kg window cleaner uses a 17 kg ladder that is 5.1 m long. Heplaces one end on the ground 3.0 m from a wall, rests the upper endagainst a cracked window, and climbs the ladder. He is 2.8 m upalong the ladder when the window breaks. Neglect friction betweenthe ladder and window and assume that the base of the ladder doesnot slip.
a) When the window is on the verge of breaking, what is the magnitude of the force on the window from the ladder?b) When the window is on the verge of breaking, what is themagnitude of the force on the ladder from the ground?c) What is the angle of this force on the ladder?
Find the equation for the acceleration of the moving body at any time.
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
What is the true potential difference among this resistor when the meter is not present? I thought this was just 25 but it is wrong when I enter in.
two sources produce coherent light waves that come together at a detector located 9.20000 mm from one source and
After falling from rest from a height of 28 m, a 0.54-kg ball rebounds upward, reaching a height of 18 m. what average force was exerted on the ball
Referring to a baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a cirle (r=11.0m) as the carousel turns.
Heavy rains have flooded your professor's basement to a depth of 6 cm. This basement is 12 m by 10 m in area. You have a hose of diameter 1.7 cm and can run the hose from the water in the basement
A 400 gram block, attached to the end of an ideal srping(horizontally) with the force constant k=10N/m, obtain the Angular frequency of Oscillation
If the partial pressure of water vapor is 47 mm Hg in the lungs at 760 mm Hg pressure, what percentage of air does the water vapor constitue
An object of mass 17.0 kg subjected to a non-zero net force moves with an acceleration of 2.6 m/s2. Determine the net force acting on it
Calculate the total binding energy, and the binding energy per nucleon, for 7/3Li. The masses of the atoms of 7/3Li and 1/1H are 7.016004 u and 1.007825 u, respectively
a jugglers hands are 80 cm apart and the balls being juggled reach a maximum height of 100 cm above the jugglers
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