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An object of mass 0.550 kilogram is lifted from the floor to a height of 3.5 meter at a constant speed. Obtain how much work is done by the lifting force? Obtain how much work is done by the Earth on the object? Find the net work done on the object? Find the change in kinetic energy of the object? If the object is released from rest after it is lifted, find its kinetic energy before it hits the floor? What is its velocity?
A metal strip 6.26 cm long, 0.830 cm wide, and 0.712 mm thick moves with constant velocity through a uniform magnetic field B = 1.24 mT directed perpendicular to the strip, as shown in Fig. 28-33. A potential difference of 4.23 µV is measured between..
find the input force for a hydraulic system which has a .5 inch diameter input cylinder and a 1.75 inch diameter output
A uniform disk of mass M=12.0 kg and radius R=.75 m is free to rotate about a frictionless axle through its center. compute the roational kinetic energy
question a wire carries a current of 0.616 a. this wire makes an angle of 56.7deg with respect to a magnetic field of
in reaching her destination a backpacker walks with an average velocity of 1.34 ms due west. this average velocity
a virtual image is located 53.5cm behind a concave mirror with focal length 20.0cm .a. where is the distance from the
a wheel of radius 0.2 m and moment of inertia 0.05 kgmcirc2 is mounted on a horizontal frictionless axle. a massless
A person in a kayak starts paddling, and it accelerates from 0 to 0.659 m/s in a distance of 0.443 m. what is the magnitude of the net force acting on the kayak
A particle of mass m moves in a force field whose potential in spherical coordinates is V = -(K cos?)/r2. Find the canonical equations of motion.
A man strides across a bed of embers. Assume the glowing charcoal is covered with a thin layer of ash 0.50 mm thick and is at a temperature of 650C. The thermal conductiviity of ash and charcoal is 1.5 W/ (mxK). (a) Estimate the heat transferred t..
The plates of a spherical capacitor have radii 31.0 and 45.0 mm.Calculate the capacitance.
If the mass of a sliding block is tripled at the equal time the net on it is tripled, how does the resulting acceleration compare with original acceleration?
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