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To push a 23 kg crate up a frictionlessincline, angled at 21° to the horizontal, a worker exerts aforce of 96.9 N, parallel to the incline. As the crateslides 1.50 m, how much work is done on the crate by theworker's applied force?
How much work is done on the crate by the weightof the crate?
How much work is done on the crate by the normalforce exerted by the incline on the crate?
What is the total work done on thecrate?
If the coefficient ofkinetic friction between a 35-kg crate and the floor is 0.3, what horizontal force is required to move the crate at a steady speed across the floor
The vector is 3.5 long and is directed into this page. Vector points from the lower-right corner of this page to the upper-left corner of this page and has components -19.5, 25.
a woman can read the large print in a newspaper only when it is at a distance of57 cmor more from her eyes.a is she
A 0.75 kg ball attached to the end of a horizontal cord, is rotated in a circle of radius 1.9 m on a frictionless horizontal surface, What is the max speed the ball can have
A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object
A force is applied to an initially stationary block of mass 3.60 kg that sits on a horizontal floor as shown. The 47.6 N force is applied at ? = 58° angle. The coefficients of friction between the floor and the block are ?s = 0.453 and ?k = 0.203. Wh..
A disabled tanker leaks kerosene (n = 1.20) into thePersian Gulf, creating a large slick on top of the water(n = 1.30). (a) If you are looking straight down from an airplane, while the Sun is overhead, what is the thickness at a region of the slic..
Suppose a radio station emits EM waves uniformly in all directions. What is the maximum power level of this radio station so as to avoid electrical breakdown of air at a distance of 2.0m from the antenna
question a long straight wire of non-negligible radius r carries a current i. use amperes law to derive an expression
Monochromatic light of wavelength 692 nm is incident on a narrow slit. On a screen 2.81 m away, Calculate the angle of diffraction of the second minimum
two tiny conducting spheres are identical and carry charges of -18.2 microc and 53.0 microc. they are separated by a
A long string is wrapped around a 6.60 diameter cylinder, initially at rest, that is free to rotate on an axle. The string is then pulled with a constant acceleration of 1.70 until 1.30 of string has been unwound. If the string unwinds without slippi..
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