A cannon recoils while firing a cannonball. The speed of the cannon's recoil is relatively small because the
A) force against the cannon is smaller than against the ball.
B) momentum is mainly concentrated in the cannonball.
C) cannon has much more mass than the cannonball.
D) momentum of the cannon is smaller.
Answer: C
You might also like to view...
A 25-L container holds ideal hydrogen (H2 ) gas at a gauge pressure of 0.25 atm and a temperature of 0°C
What mass of hydrogen gas is in this container? The ATOMIC mass of hydrogen is 1.0 g/mol, the ideal gas constant is R = 8.314 J/mol•K = 0.0821 L ? atm/mol ? K, and 1.00 atm = 101 kPa. A) 1.4 g B) 2.8 g C) 4.2 g D) 5.6 g E) 6.3 g
Applications to Astronomy: About 1 ?s after the Big Bang, the temperature of the universe was about 1013 K. What particle kinetic energy (in eV) does this correspond to? (1 eV = 1.60 × 10-19 J, k = 1.38 × 10-23 J/K)
A. 1 keV B. 1 MeV C. 1 GeV D. 1 TeV
Name the primary and secondary colors of the additive theory of light
Mercury features long, steep cliffs in its crust called "scarps" which probably formed
A. by erosion from high solar winds. B. like giant wrinkles as the crust cooled and shrank. C. after impacts from a planetesimal or asteroid. D. as plates of crust shifted as a result of massive earthquakes at a fault. E. from floods of running water left to evaporate after comet impacts.