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kari74 [83]
3 years ago
12

Which of the following are equivalent units?

Physics
1 answer:
ratelena [41]3 years ago
5 0

Answer:

B is the correct answer

Explanation:

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A spherical balloon has a radius of 6.55 m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of a
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Answer:

M_1 = 317.7 kg

Explanation:

Mass of the helium gas filled inside the volume of balloon is given as

m = \rho V

m = 0.179(\frac{4}{3}\pi R^3)

m = 0.179(\frac{4}{3}\pi 6.55^3)

m = 210.7 kg

now total mass of balloon + helium inside balloon is given as

M = 210.7 + 990

M = 1200.7 kg

now we know that total weight of balloon + cargo = buoyancy force on the balloon

so we will have

(M + M_1)g = \rho_{air} V g

(1200.7 + M_1) = (\frac{4}{3}\pi 6.55^3) (1.29)

1200.7 + M_1 = 1518.4

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3 years ago
The periodic wave in the diagram below has a frequency of 80. hertz.
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Answer:

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2 years ago
Some scientists believe that the chain of underwater mountains beneath the Pacific, which stretches away from Hawaii up to Alask
solong [7]

Answer: Erosion or water level rising

Explanation: Erosion happens when water goes against a rock and breaks it down little by little so these mountains may have once been above water but became eroded. Also, people might’ve added so much pollution into the ocean that the water level rose or there was an increase in the population of large animals. Sorry for my very long answer lol

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3 years ago
An electric space heater draws 16.0 amps from a 120 volt source. This device is operated, on average, for 8.0 hours a day. How m
iogann1982 [59]

Answer:

1920watts

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P=IV

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