A spaceship of mass 106 kg is to be accelerated to 0.75c. How much energy does this require?
a. 13.61 × 10^23 J
b. 5.95 × 10^23 J
c. 5.06 × 10^22 J
d. 4.61 × 10^22 J
e. 27.00 × 10^23 J
d
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Fill in the blank(s) with correct word
Science can say nothing about the validity of nonscientific practices that do not make testable predictions
Indicate whether the statement is true or false
The dimensional equivalence of the quantity "momentum" in terms of the fundamental quantities (mass, length, time) is:
a. MLT?1. b. ML2T?2. c. MLT. d. MLT?2.
You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis perpendicular to the plane of the Frisbee. Ignoring air resistance, the torque exerted about its center of mass by gravity is
a. 0. b. mgr. c. 2mgr. d. a function of the angular velocity. e. small at first, then increasing as the Frisbee loses the torque given it by your hand.