The type of mirror that will allow you to see large areas normally hidden from your view is

a. concave.
b. convex.
c. plane.
d. half-silvered.
e. Polaroid.


b

Physics & Space Science

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In a compound microscope the final image is formed by the objective

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Physics & Space Science

Tuning forks #1, #2, and #3 each have slightly different frequencies.When #1 and #2 are sounded together, a beat frequency of 3 Hz results. When #2 and #3 are sounded together, a beat frequency of 5 Hz results. If the frequency of #1 is 100 Hz, which of the following cannot be the frequency of #3?

a. 92 Hz b. 95 Hz c. 98 Hz d. 102 Hz e. 108 Hz

Physics & Space Science

The air inside a bicycle tire pump has 60 joules of work done on it as 20 joules of heat is conducted away from it. What is the change in internal energy of the air?

Physics & Space Science

If two heaters are connected in parallel across the 120 volt source, the total power drawn from the source increases to 2400 watts

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Physics & Space Science