If the velocity of your spaceship goes from 0.3 c to 0.6 c, then your mass will increase by
A)
19%.
B)
38%.
C)
74%.
D)
100%.
E)
200%.
A
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Syrup having density of 1000 kg/m^3 and viscosity of 1250 cP flows through a deep trough at 10 m/s. Determine the Reynolds number at a distance 2 m downstream from the entrance. Is the flow in the boundary layer laminar or turbulent?
What will be an ideal response?
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What will be an ideal response?
Which of the following statements about quantum tunneling is not true?
A) It is used in modern electronics and, in fact, our modern-day computers would not work without it. B) It plays a crucial role in nuclear fusion in the Sun. C) It allows electrons and other subatomic particles to pass through wall-like energy barriers even when it seems they do not have enough energy to get through the barriers. D) Although it has been observed to occur, it violates all other known laws of nature, and explaining it therefore represents a major challenge to physicists.
How much energy (in eV) does a photon of orange light (? = 609 nm) have? (h = 6.63 × 10^?34 J?s, c = 3.00 × 10^8 m/s, 1 eV = 1.60 × 10^?19 J, and 1 nm = 10?9 m)
a. 3.27 eV b. 0.31 eV c. 2.04 eV d. 0.68 eV e. 5.23 eV