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Mariana [72]
3 years ago
8

What's earths most precious element?

Physics
2 answers:
IrinaVladis [17]3 years ago
7 0
Earth precious element is earth
atroni [7]3 years ago
3 0
I believe the answer is californium because it is used in most metals and is very strong and expensive like gold and silver
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It depends on Mass and velocity
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A soccer ball is kicked from the ground with an initial speed of 19.3 m/s at an upward angle of 45°. a player 54.7 m away in the
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the answer is

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Which figure represents the electric field lines of two negative point charges?<br> Help
Yuliya22 [10]

Answer:

The question is incomplete because the options are not given. We'll solve this question with the options.

There are two properties of negative charges which we have to consider to find the figure of its electrical field.

Firstly, for a negative charge, the electrical field lines are always directed radially outwards and they don't intersect.

Secondly, we know that similar charges repel each other, so there will be no electrical field present directly between these two negative charges. Electrical field line will be present between two charges only when there is a force of attraction.

Taking both of these facts into consideration, the electrical field line between two negatives is represented by the figure below.

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Helium (density 0.18 kg/m^3 at 0°C and 1 atm pressure) remains a gas until the extraordinarily low temperature of 4.2 K.What is
balu736 [363]

Answer:

166.6396m/sec

Explanation:

Molar mass of helium = 4\times 10^{-3}kg/mole

\gamma for helium is 1.67

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R is a constant 8.314 atm\ mol^{-1}K^{-1}

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