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Simora [160]
3 years ago
11

Four radioactive 10-gram (g) samples with their remaining isotope mass are listed in the table that spans 50 years.

Physics
1 answer:
Temka [501]3 years ago
6 0
I’m pretty sure the answer is D
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For the sun, which is the final step in core fusion?
Marina86 [1]
The answer would be stage of<span> conversion of Hydrogen to Helium.
At the end of this phase, the helium content of the suns will have the popping effect where more and more helium is now on the core resulting to higher temp and density as helium converted from hydrogen is much heavier.</span>
3 0
3 years ago
a balloon rubbed against denim gains a charge of -8.0 x 10^-6 c. What is the electric force between the balloon and the denim, w
DedPeter [7]

Answer:

230.4 N

Explanation:

Applying,

F = kqq'/r²..................... Equation 1

Where F = Electric force, k = Coulomb's constant, q = charge in the ballon, q' =  charge in the denium, r = distance between the charges.

From the question,

Given: q = -8.0×10⁻⁶ C, q' = +8.0×10⁻⁶ C, r = 0.05 m

Constant: k = 9×10⁹ Nm²/C²

Substitute these values into equation 1

F = (9×10⁹×8.0×10⁻⁶×8.0×10⁻⁶ )/0.05²

F = (576×10⁻³)/0.0025

F = 230.4 N.

6 0
3 years ago
Free runners jump long distances and land on the ground or a wall. How do they apply Newton’s second law to lessen the force of
Veseljchak [2.6K]

As we know that as per Newton's II law we have

F = \frac{dP}{dt}

here we will have

dP = change in momentum

dt = time interval in which momentum is changed

now in order to have least injury during jumping we need to have least force on the jumper

so in order to have least force we can say that the momentum must have to change in maximum time so that amount of force must be least

So we need to increase the time in which momentum of the system is changed

5 0
3 years ago
Which of the following statements is true concerning mechanical waves and electromagnetic waves?
Over [174]

Answer:

B

Explanation:

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Extra information:

Sound travels further in water because the molecules are closer together meaning that transferring the energy is easier. This is how Blue wales can communicate from hundreds of miles away.

3 0
3 years ago
The red LED consists of a white LED covered with a red filter. What does the red filter do?
telo118 [61]
White light is light that's made up of ALL colors.

If you have a source of white light and you want red light,
then you have to REMOVE all the other colors from the
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That's what a red filter does.  The dye in the filter has chemicals
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(If the light going into the filter had no red in it, then the filter
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3 0
3 years ago
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