The stress force that causes a mass of rock to pull or twist in opposite directions in called shearing. Shearing forces<span> are unaligned </span>forces<span> pushing one part of a body in one direction, and another part of the body in the opposite direction. Hope this answers the question.</span>
Answer:
Surface tension is the tendency of liquid surfaces to shrink into the minimum surface area possible.
Surface tension is caused by effects of intermolecular forces at liquid interface.
Surface tension increases as intermolecular forces increases.
Explanation:
- Surface tension is the tendency of liquid surfaces to shrink into the minimum surface area possible. It can also be seen as the energy required to increase the surface of a liquid by a unit amount.
- Surface tension is caused by the mediating effects of intermolecular forces at the liquid interfaces. Example in water, surface tension is caused by the mediating effect of the force between hydrogen and oxygen molecules. Liquids tends to reduce their surface area because of inward attarction of the liquid molecules.
- Surface tension increases as intermolecular forces increases. Also, surface tension decreases as intermolecular forces decreases.
Answer:
Technically, humans are causing global warming.
Explanation:
There's some research done into this (sadly not enough), some of which can be found here, https://www.nationalgeographic.com/environment/global-warming/global-warming-causes/ and here, https://climate.nasa.gov/causes/ . The basics are as follows: Earth is a greenhouse. Sunlight comes towards us, and while some is reflected out, most is absorbed through greenhouse gasses, like Carbon Dioxide. Because of humanity, the amount of carbon dioxide in the air has increased, leading to more warmth from the sun to be absorbed. Therefore, the earth is getting warmer because of us.
Given:
<em>Resistance = R </em>
<em>Lenght of second wire (L2)= half of the first wire's lenght (L1) = L1/2</em>
<em>Diameter of the second wire (D2)= Half of the first wire's diameter(D1) = D2/2</em>
Apply:
Where:
R= resistance
ρ= resitivity
L= lenght
A = cross sectional area
Replacing:
R = ρL2/A2
R= ρ (L1/2)/ (πd2^2 /4 )
R= 2ρL / π (d/2)^2
R= 2ρL / [πd^2/4]
R=2 ( 4ρL/πd^2)
R= 2R
Answer = 2R
