A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. Which of the following integrals is correct for the x component of the electric field at y = 2 m on the y axis?
A.
B.
C.
D.
E.
Answer: A
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As you make a right-hand turn in your car, you are pushed against the door to your left.pushed against the door to your left. This is because
A. the centrifugal force pushed you to the left. B. no force pushed you to the right.
The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. The turntable comes to rest 2.5 s after being turned off. Through how many radians does the turntable rotate after being turned off? Assume constant angular acceleration.
A. 12 rad B. 8.0 rad C. 10 rad D. 16 rad E. 6.8 rad
The gases at the interior of the Sun are in a state of plasma, i.e., an ionized gas.
Answer the following statement true (T) or false (F)
You observe a rocket moving away from you. Compared to the passage of time measured by the watch on your wrist, the passage of time on the rocket's clock is
1.faster. 2.slower. 3.the same.