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A uniform 1.50 meter ladder of mass 5.80 kilogram is leaning against a vertical wall while making an angle of 54 degree with the floor. A worker pushes the ladder up against the wall until it is vertical.
Obtain how much work did this person do against gravity?
a 2.5 kg particle is in simple harmonic motion in one dimension and moves according to the equationx 6.4 mcosp3 radst
q1. the output of a certain laser pointer consists of a beam with uniform irradiance across the beams cross section.
the drawing shows three particles far away from any other objects and located on a straight line. the masses of these
A disk rotates about a fixed axis with an initial angular velocity of 20 rad/s. During a 5.0-s interval the angular velocity decreases to 10 rad/s. How many radians does the disk turn through during the 5.0-s interval
In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.70{\rm m/s} relative to the ground. What is the magnitude of the ball's velocity relative to Juan
A movie camera with a (single) lens of focal length 70 mm takes a picture of a person standing 24 m away. what is the height of the image in millimeters on the film
1 why are instruments tuned before being played as a group? in which ways do musicians tune their instruments?2 given
A heart defibrillator passes 11.8 A through a patient's torso for 5.00 ms in an attempt to restore normal beating. What was the path's resistance
For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. What is the average energy of the electron
A satellite has a mass of 5950 kg and is in a circular orbit 4.60 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 106 m. What is the true weight of the satellite when it is at rest on the pl..
an electron initially traveling at a speed of 105 ms enters a region where there is a uniform magnetic field of 2 t
An image of the moon is focused onto a screen using a converging lens of focal length f= 36.3 cm. The diameter of the moon is 3.48×106 m, What is the diameter of the moon's image
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