3 years ago

Which factor affects the amount of runoff that occurs in an area?

Physics

1 answer:

jarptica [38.1K]3 years ago

4 0

ion:

h t t p s : / / w w w . y o u t u b e . c o m / w a t c h ? v = x a a z U g E K u V A

this is the video that explains it

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Which of the following mixture can be separate using decantation method?

vivado [14]

Answer:

Hi sorry for answering here but you didnt put the options there

Explanation:

I'll still try to answer though so maybe the mixture from one of the questions might be something like oil and water which don't mix and can be separated by decantation so something similar would work. Hope this helps

3 0

3 years ago

What is the acceleration of an object that has a mass of 10kg and is pushed with a force of 50n

worty [1.4K]

Answer:

5m/s/s

Explanation:

force = mass x acceleration

50 = 10a

a=5m/s/s

7 0

2 years ago

Observe yourself breathing and count the number of times you inhale per second. During each breath you probably inhale 0.66 L of

Pavel [41]

To solve this exercise it is necessary to apply the concepts related to Robert Boyle's law where:

$PV=nRT$

Where,

P = Pressure

V = Volume

T = Temperature

n = amount of substance

R = Ideal gas constant

We start by calculating the volume of inhaled O_2 for it:

$V = 21\% * 0.66L$

$V = 0.1386L$

Our values are given as

P = 1atm

T=293K $R = 0.083145kJ*mol^{-1}K^{-1}$

Using the equation to find n, we have:

$PV=nRT$

$n = \frac{PV}{RT}$

$n = \frac{(1)(0.1386)}{(0.0821)(293)}$

$n = 5.761*10^{-3}mol$

Number of molecules would be found through Avogadro number, then

$\#Molecules = 5.761*10^{-3}*6.022*10^{23}$

$\#Molecules = 3.469*10^{21} molecules$

7 0

3 years ago

Where would a car traveling on a roller coaster have the most kinetic energy ? and why?

goldenfox [79]

Answer:

As the car travels up the coaster it is gaining potential energy.

Explanation:

Because It has the greatest in amount of potential energy at the top of the coaster. when the car travels down the roller coaster it obtains speed and kinetic energy.

4 0

3 years ago

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What is the Kinetic Energy of a 120 kg object that is moving with a velocity of 15 m/s

gizmo_the_mogwai [7]

Answer:

Kinetic Energy:120 x 15=1800

Explanation:

8 0

3 years ago

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