Find the angle of reflection of the ray
The reflecting surfaces of two mirrors form a vertex with an angle of 120 degrees. If a ray of light strikes mirror 1 with an angle of incidence of 55 degrees, find the angle of reflection of the ray when it leaves mirror 2.
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An electron moving parallel to the x axis has an initial speed of 3.70 X 10^6 m/s at the origin. Its speed is reduced to 1.40 X 10^5 m/s at the point x = 2.00 cm. (a) Calculate the electric potential difference between the origin and that point. (
Suppose that in one region of the country the mean amount of credit card debt per household in households having credit card debt is $15,250, with standard deviation $7,125. Find the probability that the mean amount of credit card debt in a sample
A 247 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
The mass flow rate at the inlet is measured and is 1.4 kg/s. Neglect heat transfer and potential energy changes. Find: a) the mass flow rate at the exit (kg/s), b) the exit velocity (m/s) and c) the exit flow area (cm2).
What is the minimum height the mirror must have for you to be able to see the top of the table in the mirror?
Why is the "melting point" of a substance actually a "melting range" and therefore should never be recorded as a single temperature and in theory, does a melting "point" exist?
Find (a) the approximate location of the laminar turbulent transition; (b) the overall h- for a 2 m chord; (c) h at the trailing edge for a 2 m chord; (d) delta and h at the beginning of the transition region.
An object with a height of 46 cm is placed 2.4 m in front of a concave mirror with a focal length of .5 m. Find the magnification of the image produced by the mirror.
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