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How does the radiation from a hot object change with temperature? Name a phenomenon that can be explained only by light having a wave nature, and one that can be explained only by light having a particle nature.
What is the object's potential energy when its displacement is +4cm from its equilibrium position? What is the farthest the object moves along the x-axis in the positive direction? Explain your reasoning.
An electron with kinestic energy 1.8 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 27.0 cm, Find the period of the motion
suppose that an insulating container of negligible mass contains 0.11 kg of water at a temperature of 2 degrees c. now
An observer in frame S standing at the origin observes two flashes of colored light separated spatially by ?x = 2980 m, Find the magnitude and direction of v.
An experimenter arranges to trigger two flash bulbs simultaneously, What is the time interval between them according to her
What is the difference between a vector and a scalar? Give at least one example of each. For each example, describe why it is either a vector or a scalar.
If Michaela needs to wear reading glasses with refractive power of +3.0 D, what is her uncorrected near point
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633 nm and a power of 0.500 mW spread over a cylindrical beam 1.30 mm in diameter, What is the maximum value of the electric field
By what factor must the mass of the ice be increased if the system is to have the same final temperature?
In coming to a stop, a car leaves skid marks 82m long on the highway. Assuming a deceleration of 6m/s2, estimate the speed of the car just before braking.
A piano string with a length of 1.15-m and a mass of 20.0-g isunder a tension of 6.30×10^3 N. What are the frequencies of the next two harmonics
an aluminum wire carrying a current of 4a has a cross-sectional area of 9e-06 m2. find the drift speed of the electrons
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