If a twin goes on a trip in a high-speed rocket ship, when she returns home she will be younger than her twin sister who did not go on the trip because of the special relativistic effect of __________
Fill in the blank(s) with correct word
time dilation
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Lake Superior has a shoreline of length 2726 miles. What would be its diameter in km if it were a perfectly circular lake? One mile is 1.609 km.
A. 1694 km B. 1396 km C. 539 km D. 698 km E. 270 km F. 847 km
Vector = 4.00 m points eastward and vector = 3.00 m points northward. The resultant vector + is given by
A) 5.00 m at an angle 71.6° north of east. B) 5.00 m at an angle 36.9° north of east. C) 5.00 m at an angle 53.1° north of east. D) 5.00 m at an angle 18.4° north of east. E) 5.00 m at an angle 26.6° north of east.
A changing current in one loop of wire can induce a current in another loop of wire even though the wires do not touch. The induced current appears almost instantaneously for loops close together. How can this energy exchange happen?
a. This is one of those things for which science has no adequate explanation yet. b. The second loop is affected by the thermal exchange from the heating of the first loop. c. It is a gravitational effect on the electrons. d. It is done via an electromagnetic wave.
If the number of disease-causing bacteria can grow exponentially in the body, why don't all people succumb to them at an early age?
What will be an ideal response?