What is an advantage of fossil fuels? Select all that apply. *
Clean energy
Cheap
Abund...
Answers: 3
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 06:00
What are atoms of the same element with varying number of neutrons
Answers: 3
Physics, 22.06.2019 12:50
Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass
Answers: 3
Physics, 22.06.2019 21:00
Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.
Answers: 1
Mathematics, 17.09.2019 02:00
Biology, 17.09.2019 02:00
Mathematics, 17.09.2019 02:00
Mathematics, 17.09.2019 02:00
Mathematics, 17.09.2019 02:00
Mathematics, 17.09.2019 02:00
Physics, 17.09.2019 02:00
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Chemistry, 17.09.2019 02:00
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Mathematics, 17.09.2019 02:00