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OLga [1]
3 years ago
8

One estimate for the number protons in Betelgeuse is 2.16 × 10^58. The mass of one proton is about 1.67 × 10^-27 kg. What is the

total mass of all the protons in Betelgeuse?
Approximate by the product of (2 × 10^58) ×
(2 × 10^-27).

(2 × 10^58) × (2 × 10^-27)

__ × 10^_ kilograms

​
Mathematics
1 answer:
igomit [66]3 years ago
3 0

Answer:4x 10^31

Step-by-step explanation:

(2x10^58)x(2x10^-27) multiply 2x2 then add the exponents.

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The volume of a cube is 8000 cubic feet, what is the area of one of its faces?
eimsori [14]

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4 0
3 years ago
The speed of light is estimated at 186,000 miles per second rounded to the nearest thousand miles per second.
Sedbober [7]

It was rounding to the nearest THOUSAND.


We are looking at the thousands place, keep that in mind.


Remember: everything 5 and above is rounded up, everything below 5 is rounded down.


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186,899 is above 500, it is rounded to 187,000


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and 185,190 is below 500, it is rounded to 185,000


Only one matches the criteria of the question:


185,990 is above 500, it is rounded to 186,000


therefore the answer is 185,990 miles per second



Have a fantastic day!


Read more on Brainly.com - brainly.com/question/10945335#readmore

8 0
3 years ago
the science department buys the equipment shown in the table. they bought all three items this year. in how many years will they
belka [17]

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8 0
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Step-by-step explanation:

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