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jasenka [17]
3 years ago
6

If the diameter of the black marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume?

Record to the ones place.
Physics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer: 14 centimeters cubed

Explanation:

Using the equation V=4/3*3.14*radius cubed

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Q¹=0,07Mc Q²=2C r=1,08 cm F=.......?
Nostrana [21]
The force (F) of attraction or repulsion between two point charges (Q1 and Q2) is given by the following rule:
F = <span>(k * q1 * q2) / (r^2)  where:
</span>q1 and q2 are the charges
k is coulomb's constant = 9 x 10^9<span> N. m</span>2/ C<span>2
</span>r is the distance between the two charges.

Applying the givens in the mentioned equation, we find that:
F = (9 x 10^9<span> x 0.07 x 10^6 x 2) / (0.0108)^2 = 1.08 x 10^19 n </span> 
5 0
3 years ago
If an atom is neutral, then the number of electrons is equal to the number of
Aloiza [94]

Answer:

Neutral atom means the number of protons is equal to the number of electrons.

Explanation:

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3 years ago
Find the work w1 done on the block by the force of magnitude f1 = 95.0 n as the block moves from xi = -5.00 cm to xf = 4.00 cm .
Vlad [161]
<h3><u>Answer;</u></h3>

= 8.55 Joules

<h3><u>Explanation;</u></h3>

Work done is the product of force and the distance moved by an object.

Work done = Force × distance

Force = 95 Newtons

Distance = X2 -X1

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Thus;

work done = 95 × 9/100

                  <u>= 8.55 Joules </u>

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3 years ago
Which formula correctly shows how to calculat the time taken, given the average velocity and the displacement
Alisiya [41]
We're so good here on Brainly, we can answer it
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2. A car traveling 300 miles in 5 hours is an example of
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The answer would be a speed
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2 years ago
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