Author Question: ____ has a negative charge and a mass about 1800 times small than a proton. a. A neutron b. An ... (Read 143 times)

Davideckstein7 · **on:** Jul 27, 2018

____ has a negative charge and a mass about 1800 times small than a proton.

a. A neutron
b. An electron
c. A molecule
d. A nucleus
e. An isotope

Question 2

If the inner accretion disk around a black hole has a temperature of 106 K, at what wavelength will it radiate the most energy? Hint: wavelength in nm =3,000,000/T in K

a. 106 nm
b. 3 nm
c. 3 x 106 nm
d. 1 nm
e. 3 x 1011 nm