How much work must be done to accelerate a particle of mass 2.1 × 10-14 kg from a speed of 1.5 × 108 to a speed of 2.5 × 108 m/s? (c = 3.00 × 108 m/s)
What will be an ideal response?
1200 J
Physics & Space Science
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Quasars are most common with red shifts
a. less than 0.1 b. less than 0.5 c. of about 2 d. greater than 6 e. greater than 8
Physics & Space Science
What is the typical main sequence lifetime of an M-type star?
A) one million years B) ten million years C) one billion years D) ten billion years E) a trillion years
Physics & Space Science
According to Einstein’s theory of special relativity, a stationary observer measures
A. a shorter length of an object than a moving observer measures B. a longer length of an object than a moving observer measures C. the same length of an object than a moving observer measures
Physics & Space Science
A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0°C. Determine its diameter at 100.0°C. (aGOLD = 1.42 × 10^-5/°C)
Physics & Space Science