Collisions in the early Universe were rare
a. True
b. False
Indicate whether the statement is true or false
False
Physics & Space Science
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When a skateboarder pushes on a wall,
A) an interaction occurs between the skateboarder and the wall. B) the wall pushes on the skateboarder. C) such a push couldn't happen unless the wall pushed on the skateboarder. D) all the above E) none of the above
Physics & Space Science
The strangeness of an anti-proton is
a. +1. b. 0. c. –1. d. –2.
Physics & Space Science
A machinist needs to punch a 5.0-cm-radius hole in a steel plate which is 0.45 cm thick. If the ultimate shear strength of steel is 2.50 × 10^8 Pa, what is the force required to accomplish this task?
a. 8.8E+5 N b. 3.5E+5 N c. 5.6E+6 N d. 1.1E+8 N
Physics & Space Science
How much current is drawn by a 1500 W appliance operating at 120V?
a. 2 b. 8 c. 12 d. 15 e. 24 amps
Physics & Space Science