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uysha [10]
4 years ago
12

What is the difference between a rock that shows porphyry and a rock called tuff?

Physics
2 answers:
Olin [163]4 years ago
8 0

the rock is caled tuff bc tuff = big tuff

Anna [14]4 years ago
6 0
Who knows. Noone does. That question is way to hard I'm only in 6th grade
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A total charge of –6.50 µC is uniformly distributed within a sphere that has a radius of 0.150 m. What is the magnitude and dire
Marrrta [24]

Answer:

A) 2.89 × 105 N/C, radially inward

Explanation:

The magnitude of the electric field generated by a charged sphere is given by the following formula:

E=k\frac{Q}{r^2}  ( 1 )

k: Coulomb's constant = 8.98*10^9 Nm^2/C^2

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r: distance from the center of the sphere to the point in which E is calculated

r = 0.150m + 0.300m = 0.450 m

You replace the values of Q and r in the equation (1):

E=(8.98*10^9Nm^2/C^2)\frac{6.50*10^{-6}C}{(0.450m)^2}=288246.91\frac{N}{C}\\\\E\approx2.89*10^5\frac{N}{C}

The electric field points radially inward because the charge is negative.

hence, the answer is:

A) 2.89 × 105 N/C, radially inward

7 0
4 years ago
Why do scientists believe that light is made of streams of particles?
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The attractive or repulsive force between objects is called
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The answer to this is electric force. Hope it helps
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3 years ago
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