Human activities that warm the Earth's atmosphere are caused by energy

A) production.
B) consumption.
C) both of these
D) none of the above


Answer: C

Physics & Space Science

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A rocket with a mass of 500 grams is launched straight up. It achieves a velocity of 20.0 m/s in 2.00 seconds. The average thrust force of the engines on the rocket is

A. 7.50 N. B. 9.90 N. C. 12.0 N. D. 13.5 N. E. 20.0 N

Physics & Space Science

A 120 N force is applied at an angle of 30.0 degrees above the horizontal to a 4.00 kg box. The box moves a horizontal distance of 8.00 meters. The change in the kinetic energy of the box is

A. 667 J. B. 750 J. C. 831 J. D. 890 J. E. 920 J.

Physics & Space Science

A ball is thrown straight upward from ground level with a speed of 18 m/s. How much time passes before the ball strikes the ground if we disregard air resistance?

A) 3.7 s B) 1.8 s C) 1.1 s D) 0.6 s

Physics & Space Science

______________ dating is used specifically to establish the absolute age of organic remains

Fill in the blank(s) with correct word

Physics & Space Science