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3 years ago

Hurryyyyy pleaseeeee!!!!!

Physics

1 answer:

kolbaska11 [484]3 years ago

4 0

Answer: 2.2x10^4

Explanation: in a adiabatic process pV^y = constant.

So V2=3V1 and p2 = p1 / 3^1.67 = 2.2x10^4 Pa

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Which contribute to both chemical and mechanical weathering? Check all that apply.

larisa86 [58]

organisms and water

Explanation:

Organisms and water contribute to both chemical and mechanical weathering . A form of weathering known as biological weathering is a derivative of both chemical and physical weathering.

Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
Organisms are pivotal to both physical disintegration of rocks through their activities.
Through their metabolic activities, they also releases chemicals that are used for chemical weathering of rocks.

Water is essential for weathering. It is used in alternate freezing and thawing, a mechanical weathering process to break down rocks.

It is used in rock hydrolysis for chemical weathering.

Learn more:

Contact metamorphism brainly.com/question/1970623

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4 years ago

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Which of these statements best describes the difference between electromagnetic and gravitational forces in the solar system?

kodGreya [7K]

It's B-<span>Electromagnetic forces are stronger than gravitational forces</span>

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3 years ago

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Find time when boy catches the girl or when they are at their closest separation..

soldier1979 [14.2K]

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\implies{Time=10\:sec\:and\:30\:sec}}} \\\\$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}} \\ \\$

$\green{\underline{\bold{Given :}}} \\ \\ \:\:\:\: \bullet\:\:\tt\red{ Velocity \: of \: boy = 50 \: m/s} \\ \\ \:\:\:\: \bullet\:\: \tt\orange{Velocity \: of \: girl = 30 \: m/s }\\ \\ \:\:\:\: \bullet\:\:\tt\green{ Acceleration \: of \: boy = {1 \: m/s}^{2}} \\ \\ \:\:\:\:\bullet\:\: \tt\blue{Acceleration \: of \:girl= {2\: m/s}^{2} }\\ \\ \:\:\:\: \bullet \:\:\tt\purple{Sepration \: between \: them = 150 \: m }\\ \\ \\ \red{\underline{\bold{To \: Find :}}} \\ \\ \:\:\:\: \bullet\:\: \tt\blue{Time \: taken \: to \: catch \: the \: girl }\\$

<u>According to given question</u> :

$\\ \green{\star} \: \text{Using \: relative \: motion \: method} \\ \\ \green{ \circ} \: \tt Net \: velocity = 50 - 30 = 20 \: m/s \\ \\ \green{ \circ} \: \tt Net \: acceleration = 1 - 2 = - 1\: m /{s}^{2} \\\\ \\ \star\:\bold\red{\underline{\:As \: we \: know \: that\:}} \\\\ \tt\purple{: \implies s = ut + \frac{1}{2} {at}^{2}} \\ \\ \tt\green{: \implies 150 = 20 \times t + \frac{1}{2} \times -1 \times {t}^{2}} \\ \\ \tt\purple{: \implies 300 = 40t - {t}^{2}} \\ \\ \tt\green{: \implies {t}^{2} - 40t + 300 = 0} \\ \\ \tt\purple{: \implies t = \frac{ - ( - 40) \pm\sqrt{ { (- 40)}^{2} - 4 \times 1 \times 300} }{2 \times 1} }\\ \\ \tt\green{: \implies t = \frac{40 \pm \sqrt{1600 - 1200} }{2} }\\ \\ \tt\purple{: \implies t = \frac{40 \pm 20}{2} }\\ \\ \green{\tt: \implies t = 10 \: sec \: and \: 30 \: sec}$

7 0

3 years ago

A bag of sugar weights 20 N on the earths surface. If you double the distance from the center of the earth, the bag now weighs w

elena-s [515]

I have no idea that’s a hard one

4 0

3 years ago

A loop of wire is perpendicular to a magnetic field such that the field is coming straight at you through the loop. The field be

Umnica [9.8K]

Answer:

we will have induced magnetic field towards us

now in order to induce the magnetic field towards us we must have induced current in the loop and its direction is counterclockwise.

Explanation:

As per lenz law we know that the rate of change in magnetic flux linked with the closed loop will induced EMF in the loop and the direction of this induced current in the loop will always oppose the causes due to which it is induced

Here we know that magnetic field is straight towards us and it start decreasing with time

So we can say that flux linked with the coil will also decrease with time

Now as per lenz law the induced magnetic field of the loop is in such a direction that it will increase the magnetic flux in the coil.

So we will have induced magnetic field towards us

now in order to induce the magnetic field towards us we must have induced current in the loop and its direction is counterclockwise.

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3 years ago