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If a photon is a wave and is moving (along the X-axis) at the speed of light, isn't any specific part of the wave moving faster than the speed of light? A specific point on the wave moves up and down yet is traveling in the X direction at the speed of light... so wouldn't the instant velocity of the wave be faster than the speed of light?
the label on a soft drink states 15.fl oz (444g) provides 220 kcal. The drink is cooled to 15degree Celsius before it's consumed. Find net energy content of drink
A capacitor is made from two 1.0 cm diameter coins separated by a 0.14 mm thick piece of paper (K = 3.7). How much charge is on each coin
A proton is at the origin and an electon is at the point x = 0.41 nm, y = 0.36 nm. Find the electric FIELD at the proton,
A drop of mercury released in the ocean and it sinks. Calculate the percentage change in the volume of the drop of mercury when it is at a depth of 1.0 km below the ocean surface
Find the critical angle for an optical fiber whose core has n value of 1.55 and whose cladding has n value of 1.20
q1. what are sunspots and how are they related to suns magnetic field? is a magnetic field stronger weaker in sunspots?
A 9.0-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire, compute the strength of the magnetic field
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo, Describe and explain how the velocity varies with time, and make a plot of Vy against t
A coin is placed 10.1 cm from the axis of a rotating turntable of variable speed. What is the speed ( in rpm) of the turntable when the coin slides off
A tungsten target is struck by electrons that have been accelerated from rest through a 20.0-kV potential difference
question1a stable nucleus is composed of z protons and n neutrons. is the mass of nucleus identical to the sum of the
Describe briefly a current health problem. A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father. The father speeds up by 2.5 m/s and then has the same kinetic energy as the son.
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