A meteor is
A) an irregularly shaped body, mostly found orbiting between Mars and Jupiter.
B) a chunk of space debris orbiting the Earth.
C) a chunk of space debris that has struck the ground.
D) an icy body with a long tail extending from it.
E) a streak of light in the atmosphere.
E
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The figure shows a pV diagram of a gas for a complete cycle. During part bc of the cycle, 1190 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 7.00 × 104 Pa as its volume increases from 0.0200 m3 to 0.0800 m3. Calculate the change in internal (thermal) energy of the system during part bc of the cycle. If the change is nonzero, be sure to indicate whether the change is positive or negative.
What has to change in the expression F = p / t (which for p = mv is equivalent to Newton's second law) to fit the theory of special relativity?
a. The momentum p has to equal mv, instead of just mv, where is the relativistic adjustment factor. b. The force F has to equal t/p, instead of p/t. c. We have to measure t instead of t. d. The speed v is replaced by c, the speed of light. e. There is no way to reconcile Newton's second law with the theory of special relativity.
How many neutrons are in a 35Cl nucleus?
A. 17 B. 18 C. 16 D. 19
A 1.6-kg block on a horizontal frictionless surface is attached to an ideal massless spring whose spring constant is 190 N/m. The block is pulled from its equilibrium position at x = 0.00 m to a displacement x = +0.080 m and is released from rest
The block then executes simple harmonic motion along the horizontal x-axis. What is the velocity of the block at time t = 0.40 s? A) 0.82 m/s B) -0.82 m/s C) 0.30 m/s D) -0.30 m/s E) 0.00 m/s