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3 years ago

Question 1

Physics

1 answer:

OLEGan [10]3 years ago

8 0

Answer:

Fossil fuels formed over millions of years and they are being used more quickly than they can be replaced.

Explanation:

The best reason why he use of fossil fuels should be limited is that fossil fuels formed over millions of years and they are being used more quickly than they can be replaced.

Fossil fuels contains a very rich energy which is trapped within the carbon atoms and are obtained during combustion.

It takes several geologic years for the fuels to form. On the other hand, our current rate of consumption of fossil fuels cannot be sustained because, consumption cannot be matched with the formation.

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when a man travel from hilly region to terai region what will happen to his weight ? explain with reason.

Sonbull [250]

Answer:

His weight increases.

Explanation:

The weight of the body is the gravitational force acting on the body at that location.
The gravitational force is defined as the product of mass of the body and the acceleration due to gravity.

W = m x g

The acceleration due to gravity of earth is high at the surface and decreases with respect to the height from the surface.
Hence, a man in the higher altitude regions experience lower weight that in the the lower altitude regions.

8 0

4 years ago

Dante is leading a parade across the main street in front of city hall. Starting at city hall, he marches the parade 4 blocks ea

Yuliya22 [10]

Answer:

The displacement is 6.71 [m} and the angle is 63.4° to the north of east

Explanation:

Using a sketch showing Dante's displacement, we can find each of the points Dante moves through. First, it moves 4 blocks east, the new coordinate (4.0), then moves 3 blocks south and we will get the new coordinate (4, -3). Then Dante moves 1 block west, thus the new point is (3, -3). And finally it moves 9 blocks north where the new coordinate in and gets -3 - (-9) = + 6.

The displacement can be found using the equation for the straight line.

$d= \sqrt{(x_{1}-x_{0} )^{2} +(y_{1}-y_{0} )^{2} } \\d= \sqrt{(3-0 )^{2} +(6-0 )^{2} } \\\\d=6.71 [m]\\$

We can realize that the triangle formed is a right triangle, therefore we can find the angle of the displacement.

$tan(a)=\frac{6}{3} \\a=tan^-1(2)\\a=63.4[deg]$

8 0

3 years ago

An instrument is defective for all of the following conditions EXCEPT:_______

NARA [144]

Answer:

I believe its C

6 0

4 years ago

Whenever a musician plays a guitar, they pluck one of the guitar strings to produce a standing wave in the string. Then pinch do

UkoKoshka [18]

Answer:

It's due to the distance from either ends of strings origin...

Explanation:

As we know that waves behave moving in a flow from one side to another side and this gives a prospective of motion. Suppose a wave is pinched from the near one end of a guitar then due to the distortion created by the point of tie of strings the wave super imposes and moves with a velocity v and produces a wave frequency f. as we the pinching go down to the center the wave stabilizes itself to a stationary origin right at the center and the frequency then changes accordingly as moving down on the string.

7 0

3 years ago

What is your average speed for your walk

dimulka [17.4K]

My average speed for a walk depends on how far I walk.
If I walk one mile or more, then my average speed is about 2 miles per hour.
Your results may be different.

8 0

3 years ago