When a 12 volt car battery is short circuited with a wire, the current drawn from the battery is 100 amperes. The resistance of the wire is __________
Fill in the blank(s) with correct word
0.12 ohms
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Wave Characteristics: What is the frequency of 20-mm microwaves? (c = 3.0 × 108 m/s)
A. 100 MHz B. 400 MHz C. 15 GHz D. 73 GHz
No work is done by gravity on a bowling ball that rolls along a bowling alley because
A) no force acts on the ball. B) little distance is covered by the ball. C) the force on the ball is at right angles to the ball's motion. D) the ball's speed remains constant.
In a relay race, runner A is carrying the baton and has a speed of 2.80 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.0800 m/s2. How long afterwards will A catch up with B to pass the baton to B?
A) 5.17 s B) 10.5 s C) 11.9 s D) 20.4 s E) Runner A never catches up.
In the hydraulic device shown, when the small piston is pushed down 10 cm with a force of 10 N, the large piston is raised 1 cm. This means that the large piston is capable of lifting
1) 10 N, 2) 100 N, 3) 1000 N, 4) any amount of weight, which illustrates 5) that impulse is equal to a change in momentum. 6) (F × d) input = (F × d) output. 7) Newton's second law. 8) that the stored energy that a body possesses may be transformed into other forms of energy.