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allsm [11]
3 years ago
12

Which statement about protons is true?

Physics
2 answers:
DENIUS [597]3 years ago
8 0
Answer to your question is A. Because you cannot have HALF of a Proton... 
So of course you will always have a whole number...
White raven [17]3 years ago
4 0
GIVE vo0Mac0ov Brainliest ... He's smart
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2. A wire 4.00 m long and 6.00 mm in diameter has a resistance of 15.0 mΩ. A potential difference of 23.0 V is applied between t
Vikentia [17]

Answer:

Explanation:

a )

current in the wire = potential diff / resistance

= 23 / (15 x 10⁻³ )

= 1.533 x 10³ A .

b )

For resistance of a wire , the formula is

R = ρ L / S where ρ is specific resistance , L is length and S is cross sectional area of wire

putting the given values

15 x 10⁻³ = 4ρ / π x .003²

ρ = 106  x 10⁻⁹ ohm. m

= 10.6 x 10⁻⁸ ohm m

The metal wire appears to be platinum .

4 0
3 years ago
Pls answer 9 Through 12
belka [17]

Answer:

physics,chemistry,biology,astronomy and earht sciences

principles of science are integrity of knowledge honesty,collegiality(cooperation between colleagues) objectivity and openness

examples of science are actually branches of science so those are biology,mathematics,chemistry and physics etc

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4 0
3 years ago
A 0.40-kg mass attached to the end of a string swings in a vertical circle having a radius of 1.8 m. At an instant when the stri
enyata [817]

Answer:

T=8.1N

Explanation:

From the question we are told that:

Mass m=0.40

Radius r=1.8m

Angle Beneath the Horizontal \theta =40 \textdegree

Speed v=5.0m/s

The Tension Angle

 \alpha=90-\theta\\\\\alpha=90-40

 \alpha=50 \textdegree

Generally the equation for Tension is is mathematically given by

 T=\frac{mv^2}{r}+mgcos \alpha

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 T=8.1N

7 0
3 years ago
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