<span> For this case, the first thing we are going to do is define variables:
x: size of the radius of the star
Y: size of the solar radio.
Let's write an equation that models the problem:
a star has a size of 0.1 solar radius:
</span>
<span> Clearing y we have:
</span>
<span> Rewriting we have:
</span>
<span>
Answer: the sun is 10 times larger than this star</span>
Answer:
To increase the maximum kinetic energy of electrons to 1.5 eV, it is necessary that ultraviolet radiation of 354 nm falls on the surface.
Explanation:
First, we have to calculate the work function of the element. The maximum kinetic energy as a function of the wavelength is given by:
Here h is the Planck's constant, c is the speed of light, 
is the wavelength of the light and W the work function of the element:
Now, we calculate the wavelength for the new maximum kinetic energy:
This wavelength corresponds to ultraviolet radiation. So, to increase the maximum kinetic energy of electrons to 1.5 eV, it is necessary that ultraviolet radiation of 354 nm falls on the surface.
Answer:
<h3>therefore , option (b) is correct!!</h3>
hope helpful~
What Newton discovered is that gravity extends throughout the universe.
<h3>What is gravity?</h3>
The term gravity refers to the force that acts on a body in the universe. It is gravity that makes an object to fall when it is thrown up. The force of gravity acts on every object in the universe and it extends through the universe.
Humans have always known about gravity when they fall from a height and when they threw things up. However, human did not know that gravity extends throughout the universe.
Thus, what Newton discovered is that gravity extends throughout the universe.
Learn more about gravity:brainly.com/question/4014727
#SPJ1
Answer:
- decreases
- inverse proportionality
- 1 A
Explanation:
Just take my word for it lol:)
