Work-Energy Theorem: A 10-kg dog is running with a speed of 5.0 m/s. What is the minimum work required to stop the dog in 2.40 s?
A. 50 J
B. 75 J
C. 100 J
D. 125 J
Answer: D
You might also like to view...
Auroras near the poles of the planets
a. are found on Earth. b. are found on Jupiter. c. indicate the presence of a magnetic field. d. occur when particles in the solar wind hit a planet’s atmosphere. e. all of the above.
Charges q, q, and –q are placed on the x-axis at x = 0, x = 4 m, and x = 6 m, respectively. At which of the following points does the electric field have the greatest magnitude?
a. x = 3 m b. x = 5 m c. x = 8 m d. The electric field has the same magnitude at all three positions. e. x = 7 m
At what frequency will the capacitive reactance of a 0.010-?F capacitor be 100 ??
A) 0.31 MHz B) 0.16 MHz C) 1.0 kHz D) 16 kHz
Which of the beams is due to an energetic light wave?
A) a B) b C) c D) a and c E) all of the above