I think the answer is C. Remaining constant
Answer:
19
Explanation:
The mass of an atom is found in the nucleus: number of protons + number of neutrons; 9 + 10 = 19
The mass number of fluorine is 19
The electric field depends not on the magnetic field, but change in magnetic field. if the magnetic field is constant. electric field will be zero.
Answer:
the choice of a glider to hanging mass is a ratio of 20.2
Explanation:
The Newton´s second law for glider is:
Fnet=Ma
T=Ma
The Newton´s second law for hanging mass is:
Fnet=ma
mag-T=ma
Replacing:
mag-Ma=ma (eq. 1)
Clearing a:
a=(mg)/(m+M)
The expression for motion is:
Clearing a:
Replacing values:
From eq. 1:
M/m=20.2
Answer:
Stephen William Hawking
Explanation:
Stephen William Hawking was a popular theoretical physicist born on 8th January 1942.
He served as the professor of mathematics at the Cambridge university
He was director at the center for theoretical cosmology.
He has theorized that the black holes will emit radiations and the radiations is known by his name Hawking's radiation.
His book 'The Brief History of Time' appeared as one of the best seller according to the Sunday Times.
Hawking's was diagnosed for a rare disease named as motor neuron disease.
He received numerous awards and elected as the fellow of royal society.
He passed away on 14th March 2018.
