What is the x-component of a force vector of magnitude 27.0N directed at 73o above the negative y-axis?
A. +7.9N
B. -7.9N
C. -25.8N
D. -8.3N
E. +25.8N
F. +8.3N
E. +25.8N
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Organic molecules are
A) carbon-based. B) silicon-based. C) living cells. D) found only on Earth. E) not found outside our solar system.
A supergiant star's radii may extend out to the _____
a. half the orbit of Mercury b. orbit of Mercury c. orbit of Venus d. orbit of the Earth e. orbit of Saturn
Argon rather than air is the gas used in incandescent bulbs because
A) it produces a pleasing bluish glow. B) oxygen in air oxidizes the lamp filament. C) argon is relatively plentiful. D) none of the above
A pirate demands that his 75kg prisoner “walk the plank”. The prisoner walks out on an 8.0m long, 50kg horizontal board that juts out from the side of the pirate ship. If he walks out 7.5m from the place where the board is connected to the ship’s side, what is the net torque applied to the board?
A. 5500 Nm B. 7500Nm C. 0 Nm D. 2000 Nm E. Cannot determine