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, 21.06.2019 17:00
Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?
Answers: 1
Chemistry, 22.06.2019 00:00
What is the result of multiplying (2.5 Γ 1010) Γ (2.0 Γ 10-7)? a. 5.0 Γ 103 b. 5.0 Γ 10-3 c. 5.0 Γ 1017 d. 5.0 Γ 10-17
Answers: 1
Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
Chemistry, 22.06.2019 05:40
Why did southern business leaders want to increase the number of slaves
Answers: 1
Skydivers jump out of planes with only the backpacks on their backs. of course, these packs contain...
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