Chemistry, 19.01.2020 16:31 andyboy336747
Skydivers jump out of planes with only the backpacks on their backs. of course, these packs contain the parachutes that keep skydivers from falling to earth too quickly.
when a skydiver opens his parachute, he suddenly stops falling so fast. what force does the parachute supply that causes this?
a) the drag force.
b) the thrust force.
c) the friction force.
d) the force of gravity.
Answers: 3
Chemistry, 22.06.2019 11:50
Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?
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Chemistry, 22.06.2019 23:10
Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
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Chemistry, 23.06.2019 02:00
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
Answers: 2
Skydivers jump out of planes with only the backpacks on their backs. of course, these packs contain...
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