The particle theory of light, as well as the wave theory of light, are both supported by the interference of light
Indicate whether the statement is true or false
TRUE
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One 3.2-kg paint bucket is hanging by a massless cord from another 3.2-kg paint bucket, also hanging by a massless cord, as shown in the figure
a) If the buckets are at rest, what is the tension in each cord?
b) If the two buckets are pulled upward with an acceleration of 1.25 m/s by the upper cord, calculate the tension in each cord.
A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the acceleration due to gravity is 9.80 m/s2
(a) How far from the base of the table will it strike the floor? (b) How long will it be in the air?
The figure shows a cross section of three parallel wires each carrying a current of 24 A. The currents in wires B and C are out of the paper, while that in wire A is into the paper. If the distance R = 5.0 mm, what is the magnitude of the force on a 4.0-m length of wire A?
a.
15 mN
b.
77 mN
c.
59 mN
d.
12 mN
e.
32 mN
Consider a black body emitting 0.2 W/m^2 of thermal radiation between zero and 0.01 ?m wavelengths and 1.2 W/m^2 above 0.01 ?m. What is the total radiation emitted per unit area? What is emitted at exactly 0.01 ?m?
What will be an ideal response?