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In blackbody radiation, why the magnitude of the energy of a single wave is related to the frequency? If we think radiation as a particle-like matter, what is the meaning of frequency here?
What are the amplitude and frequency f of the motion of the end of the ruler?
A playground merry-go-round of radius R = 1.80 meter has a moment of inertia I = 240 kg•m2 and is rotating at 8.0 rpm about a frictionless vertical axle. Find the new angular speed of the merry-go-round
a boat is traveling upstream at 19 kmh with respect to the water of a river. the water is flowing at 7.0 kmh with
A playground is on the flat roof of a city school, 5.3 m above the street below, Find the vertical distance by which the ball clears the wall
Through 5 successive 1.04 min intervals, a runner moves at the following constant speeds: 0.405 km/min, 0.220 km/min, 0.160 km/min, 0.163 km/min, and 0.323 km/min. compute the total distance travelled and average speed.
What is the magnitude of the electric field 19.7 cm directly above an isolated 3.25×10^?5 C charge? What is the direction of the electric field? Downward or upward?
The body in the figure is pivoted at O, and two forces act on it as shown. If r1 = 2.65 m, r2 = 2.20 m, F1 = 4.24 N, F2 = 5.71 N, ?1 = 63.0°, and ?2 = 55.0°, what is the net torque about the pivot
a parallel plate capacitor is immersed in sea water. find the ratio of rms conduction current to rms displacement
A wave has an angular frequency of 110 rad/s and a wavelength of 1.80 m. Calculate the angular wave number and the speed of the wave.
Summarize Maxwell's equations in integral form. Discuss the interdependence of time- varying electric and magnetic fields, with the aid of an example. Which two of the Maxwell's equations are independent?
A concave makeup mirror is designed so that aperson 23 cm in front of it seesan upright image magnified by a factor of two. What is the radius of curvature of the mirror in meters?
A 56.1 kg child is standing on the outer edge of a merry-go-round which has moment of inertia 864 kg.m^2 and radius 2.40 m. Find the angular velocity if the child moves to a final position
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