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A polar bear of mass 327 kg stands on an ice floe 129 cm thick. What is the minimum area of the floe that will just support thebear in saltwater of density of 1030 kg/m3? The specificgravity of ice is 0.98.
Light is incident on a piece of flint glass (n=1.66) from the air in such a way that the angle of refraction is exactly half the angle of incidence. What are the values of the angles of incidence
A -2.47 ?C charge is placed at the center of a conducting spherical shell, and a total charge of +8.70, Calculate the total charge on the outer surface of the conductor
A 6.5×10-25-kg particle is vibrating with simple harmonic motion with a period of 5.0×10-6 s and a maximum speed of 6.00×102 m/s. Find the Maximum displacement of the particle.
A 0.240 kg piece ofaluminum that has a temperature of -155°C is added to 1.5 kg ofwater that has a temperature of 2.3°C. obtain the mass of water that has been frozen into ice
question a nearsighted person wears glasses to correct the problem. the lenses in the glasses have a focal length of
A +5.7 uC point charge is onthe x-axis at x = -3.0 m, and a = 2.0 uC point charge is on thex-axis at x = +1.0 m. Determine the net electric field (magnitude and direction) on the y-axis at y = +2.0 m.
a spherical capacitor is comprised of a solid inner conduction sphere of radius a with positive charge q and an
Two parallel plates, each with an area of 110, are given equal and opposite charges of magnitude 0.18. The space between the plates is filled with the dielectric material, and the electric field within the dielectric is 0.31.
A person with a mass of 78 kg is riding in an elevator that is accelerating upward at 170 m/s2. What is the person's apparent weight
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 3.58 m, what is the magnitude of the astronaut's linear speed
You have a beach ball which has a radius of 11 cm and a mass of 0.3 kg. You have a lead ball which has the same radius but has a mass of 120 kg. What is the buoyancy force felt by the beach ball
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
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