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The quantum theory of energy levels within atoms was aided by: study of the sun's light spectrum emission line spectra of various elements alpha particles gamma rays
answered
Jul 11, 2021
Chemistry
college
1
vote
17.3k
views
a dozen of donuts cost 8.76 dollars. Based on the cost of a dozen donuts, what is the price per donut.
answered
May 22, 2021
Mathematics
middle-school
3
votes
67.2k
views
Math question down below
answered
Mar 2, 2021
Mathematics
middle-school
1
vote
179k
views
Examples of electrostatic force
answered
Feb 25, 2021
Physics
high-school
3
votes
24.3k
views
find the power needed in a circuit that has a toaster that uses 115 volts and 5 amperes and a hot plate that used 115 volts and 10 amperes
answered
Feb 11, 2021
Physics
middle-school
1
vote
31.1k
views
Excerpt from The Good, the Bad, and the Ugly: Questioning the “Greatness” of William Shakespeare Dilbert Terrell Shakespeare’s early plays were marked by a crude—almost vulgar—style that is so far from
answered
Dec 22, 2020
English
high-school
4
votes
11.3k
views
a kitchen sink is a rectangular prism with a length of 19 7/8 inches, a width of 14 3/4 inches, and height of 10 inches. Estimate the volume of the sink.
answered
Jun 23, 2020
Mathematics
middle-school
1
vote
29.9k
views
How did the Mongols rise to power?
answered
May 18, 2020
History
middle-school
1
vote
219k
views
The density of aluminum is 2.70 x 10^3 kilograms per cubic meter. What is the mass of an aluminum cylinder that has a volume of 1.50 m^3?
answered
Mar 15, 2020
Mathematics
middle-school
4
votes
140k
views
A light bulb consumes 3120 watt-hours in 3 days and 6 hours. How many watt-hours does it consume per day?
answered
Dec 5, 2019
Mathematics
college
5
votes
150k
views
What is the greatest common factor for 60 and 45
answered
Apr 24, 2019
Mathematics
high-school
2
votes
166k
views
Solve for the compound inequality 6b<24 or 4b+12>4
answered
Mar 1, 2019
Mathematics
middle-school
4
votes
27.7k
views
The process of making nitrogen in the air usable to the plant is called nitrogen _______.
answered
Jan 9, 2019
Biology
high-school
7
votes
83.4k
views
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