Consider the circuit shown above. Assume that the bulb filament has the same conductivity as the other wires. The numbers label various points inside the wires. Which graph best describes the following quantities as a function of position in the circuit? (Answer T and provide your own graph if you don’t think any of the above graphs are right.) The electric field magnitude






A.

Physics & Space Science

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Which of the following best explains why an interstellar ramjet could, in theory, achieve continuous acceleration?

A) It uses fuel that is more efficient than any other known fuel. B) It collects its fuel as it goes, rather than having to carry the weight of fuel along with it. C) It takes advantage of theoretically possible loopholes in Einstein's theory of relativity. D) It has such a large fuel tank that it will essentially never use up all the fuel it carries. E) Its speed always gets faster because time dilation changes the rate at which time flows.

Physics & Space Science

Neutrinos can move faster than c, the speed of light, as was discovered in SN1987A in 1987

Indicate whether the statement is true or false

Physics & Space Science

If an equivalent amount of work is done in a shorter period of time

A. more power is required B. the same amount of power is required C. less power is required

Physics & Space Science

The bottom of a flat-bottomed aluminum boat has an area of 4.20 m2 and the boat's mass is 63.0 kg. When set afloat in water, how far below the water surface is the boat bottom? (water density = 1.00 × 10^3 kg/m3)

a. 15.0 m b. 0.0150 m c. 0.115 m d. 0.265 m e. 0.0250 m

Physics & Space Science