A comets tails (especially its plasma tail) generally point
A) away from the Sun.
B) toward the Sun.
C) directly behind the comet along its orbit.
D) directly ahead of the comet along its orbit.
E) toward the location where the comet's inward trajectory first began.
A) away from the Sun.
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Angular Momentum: A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg ? m2 is rotating freely with an angular speed of 1.0 rad/s. Two people, each of mass 60 kg, are standing right outside the edge of the merry-go-round and suddenly step onto the edge with negligible speed relative to the ground. What is the angular speed of the merry-go-round right after the two people have stepped on?
A. 0.20 rad/s B. 0.40 rad/s C. 0.60 rad/s D. 0.80 rad/s E. 0.67 rad/s
What is the magnification of a magnifying glass of focal length 4.0 cm if the image is to be viewed by a relaxed eye with a near point of 25 cm?
A) 2.0 B) 3.0 C) 3.6 D) 4.0 E) 6.3
A step-down transformer has more windings on the ______________ coil
Fill in the blank(s) with correct word
Larger batteries have higher output voltages
Indicate whether the statement is true or false