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3 years ago

Can plantlife affect the flow of water in a watershed?

1 answer:

5 0

When it rains, water will flow into its appropriate watershed. A ridge or topographical higher areas that connects two waters are called a divide. In the United States there is an area in the Rocky Mountain called the "continental divide." This refers to water on the east of the divide flows into the Atlantic. The water on the west side flows into the Pacific

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If chilled coke and hot tea are <br> kept together tea cools down but ko gets warm why<br>

olga55 [171]

Tea gets cool beacuse of heat tranfer through convenction
Heat transfers from a area of hot region to cold.
The tea is hot in this case, due to taht factor the heat will move towards teh cooler region which is coke and will make the coke warm

Hope this helped!

5 0

3 years ago

Accurate forecasts require careful study of the location, size, movement, and characteristics of large _____.

tankabanditka [31]

Answer: B air masses

3 0

3 years ago

two blocks are held together with a compressed spring between them on the surface of a slippery table .one block has three times

Marina CMI [18]

Explanation:

The initial kinetic energy $KE_0$ for both blocks is zero. Let $m_1= m$ and $m_2 =3m$ . So using the conservation law of linear momentum, we can write

$0 = m_1v_1 - m_2v_2$

$v_2 = \dfrac{m_1}{m_2}v_1 = \dfrac{m}{3m}v_1 = \dfrac{1}{3}v_1$

The final kinetic energies for the two masses are

$KE_1 = \frac{1}{2}m_1v_1^2 = \frac{1}{2}mv_1^2$

$KE_2 = \frac{1}{2}m_2v_2^2 = \frac{1}{2}(3m)(\frac{1}{3}v_1)^2 = \frac{1}{2}m(\frac{1}{3}v_1^2)$

Therefore, the ratio of their kinetic energies is

$\dfrac{\Delta KE_2}{\Delta KE_1} = \dfrac{\frac{1}{2}(\frac{1}{3}v_1^2)}{\frac{1}{2}v_1^2} = \dfrac{1}{3}$

4 0

3 years ago

A dog of mass 10 kg sits on a skateboard of mass 2 kg that is initially traveling south at 2 m/s. The dog jumps off with a veloc

Tasya [4]

Answer:

17 m/s south

Explanation:

$m_1$ = Mass of dog = 10 kg

$m_2$ = Mass of skateboard = 2 kg

v = Combined velocity = 2 m/s

$u_1$ = Velocity of dog = 1 m/s

$u_2$ = Velocity of skateboard

In this system the linear momentum is conserved

$(m_1+m_2)v+m_1u_1+m_2u_2=0\\\Rightarrow u_2=-\dfrac{(m_1+m_2)v+m_1u_1}{m_2}\\\Rightarrow u_2=-\dfrac{(10+2)2+10\times 1}{2}\\\Rightarrow u_2=-17\ m/s$

The velocity of the skateboard will be 17 m/s south as the north is taken as positive

3 0

4 years ago

Suggest one material that is used to make the trampoline surface.<br> Explain your answer.

DiKsa [7]

Answer:

Polypropylene is the safest material for trampoline mats in the trampoline market. The fibers are heavily woven to make a buoyantly webbed fabric. The fabric is then thermally interlocked to provide a smoother stabilized surface that can withstand constant flexing and stress.

3 0

3 years ago