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2 years ago

which has the greatest amount of energy a glass of water at 20 degrees or a glass of water at 80 degrees

Chemistry

1 answer:

Y_Kistochka [10]2 years ago

7 0

Answer:

80 degrees

Explanation:

if you think about it 80 degrees is hotter than 20 degrees if I'm not right tell me in the comments please

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Find the average speed of a person who swims 105 m in 70 s

spin [16.1K]

Answer:

v = 1.5 m/s

Explanation:

Given that,

Distance covered by a person, d = 105 m

Time taken, t = 70 s

We need to find the average speed of the person. We know that the average speed is given by :

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2 years ago

(Please help will mark brainliest!)

arsen [322]

We know that Weighted atomic mass of Element is Calculated based upon their existence of isotopes and the Relative abundance of these isotopes.

Given that the Element X is Composed of :

Isotope Relative abundance Atomic Mass

⁵⁵X 70% 55

⁵⁶X 20% 56

⁵⁷X 10% 57

Weighted Atomic Mass of Element X :

= (0.70)(55) + (0.20)(56) + (0.10)(57)

= 38.50 + 11.2 + 5.70

= 55.4

So, the Weighted Atomic Mass of Element X is 55.4

6 0

2 years ago