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icang [17]
3 years ago
8

I NEED HELP!!!!!!!!!!!​

Physics
1 answer:
Dimas [21]3 years ago
8 0

Answer:

I would guess the following:

The smallest part of the element is: (the atom)

proton, neutron, electron (atomic particles

The proton has mass and is positive

The neutron has mass and no charge

The electron has (very small) no mass and negative charge,

Each atomic particle has a different atomic weight.

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Sladkaya [172]

Answer:This is an explanation

for 150 km its all ik i tried hard ty

Explanation:The car covers 150 km in 3 hours or 3*60 = 180 minutes.

So in 12 min the car will cover (12/180)*150 = 10 km.

8 0
2 years ago
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A spectroscope creates a spectrum, or array of colors, based on the light emitted by a star. How are
Ivanshal [37]
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Different elements block different parts of the spectrum, resulting in black lines.

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3 years ago
The less internal heat a jovian planet emits the more it stirs up its clouds.
g100num [7]
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3 years ago
The density of gold is 19.3. G/cm(3). If a nugget of iron pyrite and nugget of gold each have a mass of 50 g, what can you concl
tangare [24]
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5 0
3 years ago
An unstrained horizontal spring has a length of 0.40 m and a spring constant of 340 N/m. Two small charged objects are attached
Hatshy [7]

Answer:

(a) Both the charges are positive or negative.

(b) Teh value of each charge is 1.53 x 10^-5 C.

Explanation:

Spring constant, K = 340 N/m

Natural length, L = 0.4 m

stretch, y = 0.033 m

(a) Let the charge on each sphere is q and they repel each other so the nature of charge of either sphere may be both positive or both negative.  

(b) The electrostatic force is balanced by the spring force.

\frac{kq^2}{(L + y)^2}=Ky\\\\\\\frac{9\times 10^9 q^2}{(0.4 +0.033)^2} = 340\times0.033\\\\q= 1.53\times 10^{-5} C

6 0
3 years ago
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