A proton with mass 1.67 × 10^-27 kg moves with a speed of 0.800c in an accelerator. What is its relativistic momentum? (c = 3.00 × 10^8 m/s)
a. 2.40 × 10^-19 kg×m/s
c. 0.530 × 10^-19 kg×m/s
b. 6.68 × 10^-19 kg×m/s
d. 3.76 × 10^-19 kg×m/s
B
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The temperature of a rigid cylinder, 15 cm tall and 15 cm in radius, which is filled with Xenon (a monatomic gas at standard temperature (0oC) and pressure (1 atm). The box is later raised to 25oC. What is the heat input required to perform this act?
A. 490 J B. 250 J C. 160 J D. 300 J E. 100 J F. 150 J
Suppose that at a certain time a quanton has a well-defined wavelength of 0.15 nm. At that time, we perform an experiment to locate the quanton and get the result x = 0.45 nm to a high degree of precision. What can we say about the wavelength of the quanton’s wave function after the experiment?
A. It is still 0.15 nm. B. It is now 0.30 nm. C. It is now 0.45 nm. D. It is now not well-defined. E. Other (specify).
Two identical steel balls are released from rest from the same height and travel along tracks as shown and labeled below
To prevent injuries, people should do all of the following EXCEPT _______
Fill in the blank(s) with the appropriate word(s).