A sailboat of mass m is moving with a momentum p. Which of the following represents its kinetic energy?
A) p2/2m
B) mp
C) mp/2
D) 1/2 mp2
E) mp/3
A
You might also like to view...
A firecracker breaks up into several pieces, one of which has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s. A second piece has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s
What are the magnitude and direction of the total momentum of these two pieces? A) 361 kg?m/s at 56.3° from the x-axis B) 93.5 kg?m/s at 28.8° from the x-axis C) 21.2 kg?m/s at 39.5° from the x-axis D) 361 kg?m/s at 0.983° from the x-axis E) 21.2 kg?m/s at 56.3° from the x-axis
The splitting of a large nucleus into two smaller nuclei upon absorbing a neutron is __________
Fill in the blank(s) with correct word
The critical density of the universe is the
A) total density of matter and energy needed to give the universe a "flat" geometry (in spacetime). B) measured average density of matter in the universe. C) density of matter necessary for stars and galaxies to form. D) density value at which the total density of matter precisely equals the total density of antimatter.
The interior of a refrigerator has a volume of 0.600 m3. The temperature inside the refrigerator in 282 K, and the pressure is 101 kPa. If the molecular weight of air is 29 g/mol, what is the mass of air inside the refrigerator?
The ideal gas constant is R = 8.314 J/mol ? K = 0.0821 L ? atm/mol ? K. A) 500 g B) 560 g C) 140 g D) 270 g E) 750 g