Which of the following is a unit of mass density?
a. kg/m3
b. g/cm2
c. lb/ft3
d. lb/ft2
a
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Which of the following statements is true of a bipolar flow?
A) It represents jets flowing in opposite directions away from a central object. B) It is similar to that of laminar and transient flows. C) It is not associated with Herbig-Haro objects. D) It is not associated with the asymptotic giant branch stars.
If you were all powerful, how could you make the difference between a planet's night and day temperatures larger?
A) Increase the greenhouse gas content of the planet's atmosphere. B) Increase the tilt of the planet's rotation axis. C) Make the planet rotate more slowly. D) Increase the number of impact craters on the planet.
Thirty microcoulombs of NEGATIVE charge experiences an electrostatic force of 27. mN. What is the magnitude and direction of the electric field?
What will be an ideal response?
In a series LRC circuit the rms voltage across the resistor is 80.0 V, across the capacitor is 120 V, and across the inductor is 60.0 V. If 1.50 A rms is flowing in this circuit, what is the average power dissipated?
A. 200 W B. 120 W C. 80.0 W D. 60.0 W E. 40.0 W