The only force acting on a 2.0-kg body moving along the x axis is given by Fx = (2.0x) N, where x is in m. If the velocity of the object at x = 0 is +3.0 m/s, how fast is it moving at x = 2.0 m?

a. 4.2 m/s
b. 3.6 m/s
c. 5.0 m/s
d. 5.8 m/s
e. 2.8 m/s


b

Physics & Space Science

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Determine the magnitude and sense (direction) of the current in the 500-? resistor when I = 30 mA.

A. 56 mA left to right B. 56 mA right to left C. 48 mA left to right D. 48 mA right to left E. 26 mA left to right

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The number of stars in the Milky Way Galaxy is approximately ________

A) a few hundred million B) a few hundred billion C) a few hundred D) a few hundred thousand

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If I want to make a red shirt, I would want the pigment called ________________ to be in the shirt.

a. Cyan b. Red c. Blue d. Yellow

Physics & Space Science

The diagram below shows the position of a long straight wire perpendicular to the page and a set of directions labeled A through H. When the current in the wire is directed up out of the page, the direction of the magnetic field at point P is



a.
E.

b.
F.

c.
G.

d.
H.

e.
A.

Physics & Space Science