Answer:
1.8 x 10⁸ N / m²
Explanation:
Volume of 1000 kg of water = 1 m³
Volume of 1000 kg of ice = 1 / .917 = 1.09 m³
Change in volume = .09 m³
Volume strain = Change in volume / original volume = .09 / 1 = .09
Bulk modulus of elasticity of ice is 2 x 10⁹ N / m²
a ) Bulk modulus = change in pressure / volume strain
change in pressure = bulk modulus x volume strain.
Change in pressure = 2 x 10⁹ x .09 = 1.8 x 10⁸ N./ m².
When water inside the cell freezes it creates huge pressure on the cell wall
breaking it . Even walls of many internal structures of cell are broken leading it to die.
Answer:
impulse will be equal to 1.969 N-s
Explanation:
We have given mass of the golf ball m = 60.8 gram = 0.0608 kg
Horizontal speed of the ball is v = 32.4 m/sec
We have to find the impulse of the golf ball
We know that impulse is equal to momentum of the object
So we have to find the momentum of the object
Momentum of the object is equal to product of mass of the object and speed of the object
So
As momentum is equal to impulse so impulse will be equal to 1.969 N-s
Answer:
Explanation:
When unpolarized light passes through a polarizer, only the component of the light vibrating in the direction parallel to the axis of the polarizer passes through: therefore, the intensity of light is reduced by half, since only 1 out of 2 components passes through.
So, after the first polarizer, the intensity of light passing through is:
Where is the initial intensity of the unpolarized light.
Then, the light (which is now polarized) passes through the second polarizer. Here, the intensity of the light passing through the second polarizer is given by Malus Law:
where:
is the angle between the axes of the two polarizers
In this problem the angle is
So the intensity after of light the 2nd polarizer is:
The Gettysburg Address
"Fourscore and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field as a final resting-place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But in a larger sense, we cannot dedicate, we cannot consecrate, we cannot hallow this ground. The brave men, living and dead who struggled here have consecrated it far above our poor power to add or detract. The world will little note nor long remember what we say here, but it can never forget what they did here. It is for us the living rather to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us-that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion-that we here highly resolve that these dead shall not have died in vain, that this nation under God shall have a new birth of freedom, and that government of the people, by the people, for the people shall not perish from the earth."
Which of the following is the best summary of the line in bold? (5 points)The battle fought at this particular location was unimportant.
Patriotic citizens have the right to rebel against government.
War is pointless and should be used only as a last resort.
Our purpose is to see this war through and to win it for justice.
answer? LIKE Rn