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A horizontal force of 200 N pushes a 10 kg block 5.0 m up along a plane inclined at 37 ° to the horizontal. The coefficient of kinetic friction is mk = 0.2.
a) Calculate the work done by the horizontal force.
b) Calculate the work done by gravity.
c) Calculate the work done by friction.
The specific heat of a certain metal can be determined by measuring the temperature change that occurs when a piece of the metal is heated, What is the specific heat of the metal
A stunt man whose mass is 70 kg swings from the end of a 3.10 m long rope along the arc of a vertical circle. Assume that he starts from rest when the rope is horizontal; find the tensions in the rope that are necessary to make him follow his circ..
Three successive resonance frequencies of an air column are 75, 125, and 175 Hz, What is the fundamental (lowest) frequency
A woman at an airport is towing her 14.0-kg suitcase at constant speed by pulling on a strap at an angle, What is the magnitude of the normal force that the ground exerts on the suitcase
The intensity of the light that reaches Earth from the star is 3.94 x 10-21 W/m2. At what rate does the star radiate EM energy
What magnetic field strength produced by Helmholtz coils
With what tension should a rope with length 3.00m and mass 0.135kg be stretched for transverse waves of frequency 43.0Hz to have a wavelength of 0.720m. What torque does friction exert even as this wheel is slowing down.
a stel cable is used to keep a 2 m long 10 kg bar horizontal. one end of the bar is mounted to a wall. what tensional force now acts on the bar through the cable
Using Newtons law of gravitational force Find the magnitude of the gravitational exerted by one mass on the other
How far does the object compress the spring if same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected.
the right triangle with vertex P at the origin, base b, Determine the potential at the vertex P
The overall magnification of an astronomical telescope is desired to be 26 Ã?. What is the overall length of the telescope when adjusted for use by the relaxed eye
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