Answer:
See the answers below
Explanation:
In this problem, we must be clear about the concept of weight. Weight is defined as the product of mass by gravitational acceleration.
We must be clear that the mass is always preserved, that is, the mass of 15 [kg] will always be the same regardless of the planet where they are.

where:
W = weight [N] (units of Newtons)
m = mass = 15 [kg]
g = gravity acceleration [m/s²]
Since we have 9 places with different gravitational acceleration, then we calculate the weight in each of these nine places.
<u>Mercury</u>
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<u>Venus</u>
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<u>Moon</u>
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<u>Mars</u>
![w_{mars}=15*3.7\\w_{mars}=55.5 [N]](https://tex.z-dn.net/?f=w_%7Bmars%7D%3D15%2A3.7%5C%5Cw_%7Bmars%7D%3D55.5%20%5BN%5D)
<u>Jupiter</u>
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<u>Saturn</u>
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<u>Uranus</u>
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<u>Neptune</u>
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<u>Pluto</u>
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It is true that the light is 15.000 more dangerous than the radiation of a microwave.
<h3>What is the wavelength?</h3>
The wavelength shows the extent or how far the wave travels. Now we know that the energy of the wave can be use to find out how much dangerous the wave is.
Now;
1.6 * 10^-19 J = 1eV
x J = 1.8 eV
x = 1.8 eV * 1.6 * 10^-19 J /1eV
x = 2.88 * 10^-19 J
Now if the energy of the microwaves is 1.2 x 10^-4 J, then it follows that;
2.88 * 10^-19 J/ 1.2 x 10^-4 J,
= 2.4 * 10^15
Hence, it is true that the light is 15.000 more dangerous than the radiation of a microwave.
Learn more about microwave:brainly.com/question/15708046
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okay u need to use the equation m=Fnet/a. Fnet=540N a=7.74m/s^2 m=540N/7.74m/s^2=69.77kg