Physics, 13.04.2021 19:50 iamsecond235p318rq
Hamid is going to heat sodium chloride and water in a beaker. How can he carry out his experiment as
safely as possible?
[4 marks]
Answers: 2
Physics, 21.06.2019 12:50
"why is graphite used instead of gold or copper wires to conduct electricity in very hot situations such as an industrial kiln? " that's the question, but the thing is, i don't even understand what an "industrial kiln" xd assistance would be < 3
Answers: 2
Physics, 22.06.2019 19:30
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
Answers: 1
Physics, 23.06.2019 00:20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 Ć 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
Physics, 23.06.2019 01:30
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0Ā° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m
Answers: 3
Hamid is going to heat sodium chloride and water in a beaker. How can he carry out his experiment as...
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