If the absolute magnitude, M, of a supernova is ?19 and a galaxy is found that contains a supernova with an apparent magnitude, m, of 16 . What is the distance to the galaxy? Hint: dpc = 10(m - M + 5)/5
a. 100 AU
b. 100 pc
c. 100 ly
d. 100 kpc
e. 100 Mpc
e
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Charge: What is the charge on 1.0 kg of protons? (e = 1.60 × 10-19 C, mproton = 1.67 × 10-27 kg)
A. 1.0 C B. 1000 C C. 9.6 × 107 C D. 6.0 × 1026 C E. 6.0 × 1023 C
As predicted by general relativity, time runs slightly slower at the peak of Mount Everest than it does at sea level
Indicate whether the statement is true or false
An electron and a positron annihilate each other, emitting two identical photons in the process. What is the wavelength of these photons? The mass of an electron or positron is 9.11 × 10-31 kg and h = 6.63 × 10-34 Js
A) 1.21 × 10-12 m B) 1.73 × 10-12 m C) 2.43 × 10-12 m D) 3.07 × 10-12 m E) 3.46 × 10-12 m
State the scale of your topographic map in units of inches per mile; that is, one inch equals how many miles?