A stone is thrown downward from a cliff. Take "up" to be the positive direction. Which of the following statements is true about the stone?
a. The velocity is negative, the acceleration is negative, and the speed is negative.
b. The velocity is positive, the acceleration is negative, and the speed is positive.
c. The velocity is negative, the acceleration is negative, and the speed is positive.
d. The velocity is positive, the acceleration is positive, and the speed is positive.
C
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An LC circuit consists of a 3.4-µF capacitor and a coil with a self-inductance 0.080 H and no appreciable resistance. At t = 0 the capacitor has a charge of 5.4 µC and the current in the inductor is zero
(a) How long after t = 0 will the current in the circuit be maximum? (b) What will be this maximum current? What will be an ideal response?
Ozone is a pollutant of city air caused by auto emissions. Therefore ozone is bad for Earth
a. True b. False Indicate whether the statement is true or false
A reasonable estimate for the height of an ordinary adult male is
A) 50 cm. B) 70 cm. C) 200 cm. D) 300 cm.
Hypothesize what kind of galaxy would result from two similar-mass interacting spiral galaxies and two similar- mass interacting elliptical galaxies
What will be an ideal response?