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Assuming that the earth's orbit around the sun is circular, use the appropriate information about the earth to calculate the mass of the sun.
M=?kg
A physics professor wants to demonstrate the large size of the henry unit. On the outside of a14-cm-diameter plastic hollow tube, How many kilometers of copper wire will be required
A 9.15 kg object on a horizontal frictionless surface is attached to a spring with k = 2350 N/m. find the initial potential energy of the block-spring system
A small block of mass m slides along a frictionless loop-the-loop track. If it starts from rest at point P. What is the resultant force at point Q
The avarage intensity of solar radiation that falls normally on surface just outside the earth's atmosphere is 1.4 kW/m^2. What radiation pressure is exerted on this surface
A positive image distance means that image is formed on the side of the lens from which the light emerges.
In a typical Hollywood movie stunt, a person jumps off a building and lands on a cushion to safely stop. How much voltage should the battery have to stop the object as it reaches the ground
Using the Hamiltonian for the harmonic oscillator, or otherwise, show that the expectation value of the kinetic energy is equal to the expectation value of the potential energy and half that of the total energy.
Avoiding air resistance, what is the magnitude of the total velocity of the package at the moment it is thrown as seen by an observer on the ground? Answer in units of m/s.
Two 480 V (rms) loads are connected in parallel. The two loads draw a total average power of 40,800 W at a power factor of 0.8 lagging. What is the power factor of the other load
A molecule of DNA (deoxyribonucleic acid) is 2.04 µm long. Determine the effective spring constant of the molecule
A flash of light is emitted at position x1 on the x-axis and is absorbed at position x2=x1+d. In a reference frame moving with velocity v along the x-axis: What is the spatial separation d' between the point of emission and the point of absorption ..
a plastic rod has been bent into a circle of radius r 5.10 cm. it has a charge q1 3.60 pc uniformly distributed along
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