A freely-falling watermelon falls with constant
A) velocity.
B) speed.
C) acceleration.
D) distances each successive second.
Answer: C) acceleration.
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What is the maximum wavelength photon that can produce a pair of tau particles (rest mass 1.777 GeV/c2) by pair production?
A. 8.72 x 10-8nm B. 3.49 x 10-7nm C. 6.98 x 10-7nm D. 1.74 x 10-7nm
I use a rope 3.50 m long to swing a 10.8-kg weight around my head. The tension in the rope is 8.25 N. In half a revolution how much work is done by the rope on the weight?
a. 28.9 J b. 312 J c. 25.5 J d. 0 J e. 0.218 J
Self-Inductance: An ideal solenoid with 3000 turns is 70.0 cm long. If its self-inductance is 25.0 mH, what is its radius? (?0 = 4? × 10-7 T ? m/A)
A. 0.0222 m B. 0.00199 m C. 327 m D. 52.0 m
Blackbody radiation is caused by an object's ____
a. chemical structure b. binding energy c. excitation level d. absolute zero e. thermal agitation