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An object is solid throughout. When the object is totally submerged in ethyl alcohol, its apparent weight is 15.3 N. When totally submerged in water, its apparent weight is 13.6 N. What is the volume of the object?
You are on a ferries wheel. You wonder about the motion of the ride. You calculate the radius of the big wheel to be 15 meter, Find your speed and magnitude of your acceleration
Consider the equation for heat transfer through a wall. Based on this, describe two simple ways you could modify your home to decrease the rate at which heat is lost through your walls.
an anatomist is viewing heart muscle cells with a microscope that has two selectable objectives with refracting powers
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
A railroad car of mass 3.0x10^4 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, what is the speed of the three coupled cars after the collision
An engine absorbs 1.69 kJ from a hot reservoir at 277°C and expels 1.22 kJ to a cold reservoir at 27°C in each cycle. (a) What is the engine's efficiency? % (b) How much work is done by the engine in each cycle? J (c) What is the power output of the ..
A man is trying to lift 60.0 kg off the floor by bending at thewaist. Assume that the man’s upper body weighs 455 Nand the upper body’s centre of gravity is 38 cm from thesacrum (tailbone).
A 1.23 kg mass stretches a vertical spring .215m . If the springis stretched an additional /130m and released, how long does ittake to reach the new equalibrium position?
A 14.0 kg block of metal measuring 12.0 cm x 10.0 cm x 10.0 cm is suspended from a scale and immersed in water. find the forces acting on the top and on the bottom of the block
a pendulum of length l and mass m hangs from a bead of mass m that moves frictionlessly along the curve yx4 . use y the
The charge +q travels a distance d from point A to point B in a uniform electric field of magnitude E, what is the work done by the field on the charge
The wavelength of visible light ranges from 400 {\rm nm} to 700 {\rm nm}. Find the ranges of this light's angular frequency
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