Physics, 08.09.2020 14:01 Cjdjejfjiv8568
The chemical formula for two substances are Fe and Fe2O3 which is an element and which is a compound how would you justify the selection of substances as an element or as a compound
Answers: 2
Physics, 21.06.2019 15:00
Air flows upward in the wick of a lantern because of the liquid property called
Answers: 1
Physics, 22.06.2019 01:30
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ă—106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .
Answers: 2
Physics, 22.06.2019 03:00
Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.
Answers: 1
Physics, 22.06.2019 18:00
Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
Answers: 2
The chemical formula for two substances are Fe and Fe2O3 which is an element and which is a compound...
Mathematics, 26.04.2021 22:50
Physics, 26.04.2021 22:50
Social Studies, 26.04.2021 22:50
Chemistry, 26.04.2021 22:50
English, 26.04.2021 22:50
Mathematics, 26.04.2021 22:50
Social Studies, 26.04.2021 22:50
Advanced Placement (AP), 26.04.2021 22:50
Mathematics, 26.04.2021 22:50
Mathematics, 26.04.2021 22:50
English, 26.04.2021 22:50
History, 26.04.2021 22:50
Mathematics, 26.04.2021 22:50
Mathematics, 26.04.2021 22:50