What is the brains job and heart job
2 answers:
Answer:
The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.
The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.
Explanation:
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A) Order of the first laser: 3, order of the second laser: 2
B) The overlap occurs at an angle of
Explanation:
A)
The formula that gives the position of the maxima (bright fringes) for a diffraction grating is
where
d is spacing between the lines in the grating
is the angle of the maximum
m is the order of diffraction
is the wavelength of the light
For laser 1,
For laser 2,
where
Since the position of the maxima in the two cases overlaps, then the term on the left is the same for the two cases, therefore we can write:
Therefore:
B)
In order to find the angle at which the overlap occurs, we use the 1st laser situation:
where:
N = 450 lines/mm = 450,000 lines/m is the number of lines per unit length, so the spacing between the lines is
is the order of the maximum
is the wavelength of the laser light
Solving for , we find the angle of the maximum:
So the angle is
Learn more about diffraction:
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Answer:
7229 N
Explanation:
The gravitational force between the Death Star and the Millenium Falcon is given by:
where
is the gravitational constant
is the mass of the Death Star
is the mass of the Millennium Falcon
is the radius of the Death Star
Substituting numbers into the equation, we find the force