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An aluminum cylinder is suspended in an unknown fluid by a spring scale. Outside the fluid, the object weighs 20N. In the fluid it weighs 10N. If the cylinder has a volume of 10–4m3, what is the density of the fluid?
A 0.900m -diameter vat of liquid is 2.60m deep. The pressure at the bottom of the vat is 1.40atm
Find the force to keep object moving.
Calculate the expectation value of the potential energy of the H atom with its electrons in the 1s orbital. Compare this with the total energy.
Two 27.0 cm focal-length converging lenses are placed 16.5 cm apart. Where will the final image formed by the second lens be located
Examining your imange in a convex mirror whose radius of curvature is 24.6cm, Where is the image of your nose located
In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 135 kg, What was the tension in the cord on which it rolled
Two clocks are synchronized. One is placed in a race car that drives around a 2.0-km-diameter track at 130 m/s for 24 hours. by how much do the two clocks differ
q1. how high does a rocket have to go above the earths surface until its weight is 0.8 times its weight on the earths
A charged particle is injected at 215 m/s into a 0.0739-T uniform magnetic magnetic field perpendicularly to the field. What is the charge-to-mass ratio of this particle
Electrons are accelerated through a voltage difference of 175 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons?
A stunt man whose mass is 70 kg swings from the end of a 3.7-m long rope along arc of a vertical circle. Presume he starts from rest when the rope is horizontal.
Having found the minimum kinetic energy of an alpha particle inside a nucleus to be roughly 2.0 Mev, and given that the typical kinetic energy of an emitted alpha particle is 5.0 MeV, is actually possible for the alpha particle to have existed inside..
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