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Consider a 3-kg copper cube and a 3-kg copper ball submerged in a liquid. will the buoyant forces acting on these two bodies be the same or different? explain.
A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in every directions. Compute the distance from the source at which the intensity is 0.80 x 10-6 W/m2
The current in a solenoid is increasing at a rate of 6.37 A/s. The cross-sectional area of the solenoid is ? cm^2, and there are 333 turns on its 11.5 cm length. What is the induced emf opposing the increasing current
A charged belt, 75 cm wide, travels at 25 m/sbetween a source of charge and a sphere. The belt carries chargeinto the sphere at a rate corresponding to 100 µA. Compute the surface charge density on the belt.
a worker is dragging a box m 63 up a ramp using a ropen.the ramp makes an angle of 35 above the horizantal the rope is
A 10.0 kg ball rests suspended by the 5.0 m long weightless string. find The maximum deflection angle for the large ball
a helium baloon is used to lift something which weighs 100n. the layer of the baloon weighs 50n and the volume of the
A small glass bead hasbeen charged to + 50.0 nC. A metal ball bearing 1.80 cm above thebead feels a 1.60×10-2 N downwardelectric force. What is the charge on the ball bearing
the speed of ocean waves depends on their wavelength lambdameasured in meters and the gravitational field strength g
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.4 10-6 T. What is the intensity S of the wave
A sled and rider with a combined weight of 63 kg are at reston the top of a hill 11 m high. What is their total ebergy at the top of the hill ?
A car is traveling along a straight road at a velocity of +34.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
A certain kind of glass has an index of refraction of 1.650 for blue light of wavelength 420 nm and an index of 1.615for red light of wavelength 670 nm. If abeam containing these two colors is incident at an angle of30.0° on a piece of this glass, wh..
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