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3 years ago

What is the first and second law of thermodynamics

Physics

2 answers:

maks197457 [2]3 years ago

8 0

Law of Conservation of Energy Fam

ElenaW [278]3 years ago

6 0

The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases. hope this helps you!

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What if the store decided to arrange their items according to size, color or shape? What do you think will happen to your shoppi

Y_Kistochka [10]

Answer: it will change dramatically

Explanation:

8 0

3 years ago

You are traveling 70 mph (31.3 m/s) and slam on the brakes to avoid hitting another car. How far do you travel if it takes you 8

Arlecino [84]

You traveled a distance of 620.075 meters if it takes you 8.5 seconds to stop.

Given the following data:

Initial velocity, U = 31.3 m/s

Time, t = 8.5 seconds.

We know that acceleration due to gravity (a) for an object is equal to 9.8 meter per seconds square.

To find the distance traveled, we would use the second equation of motion:

Mathematically, the second equation of motion is given by the formula;

$S = ut + \frac{1}{2} at^2$

Where:

S is the distance travelled.

u is the initial velocity.

a is the acceleration.

t is the time measured in seconds.

Substituting the parameters into the formula, we have;

$S = 31.3(8.5) + \frac{x}{y} (9.8)(8.5^2)\\\\S = 266.05 + 4.9(72.25)\\\\S = 266.05 + 354.025$

Distance, S = 620.075 meters.

Therefore, you traveled a distance of 620.075 meters if it takes you 8.5 seconds to stop.

Read more: brainly.com/question/8898885

6 0

2 years ago

Under what conditions might a stream's volume increase, and under what conditions might it decrease? How would the size of the s

k0ka [10]

From to differts is to

7 0

4 years ago

In static equilibrium, the potential difference between two points inside a solid piece of metal Group of answer choices is zero

levacccp [35]

Answer:

it is zero because the electric gap is zero within the material

Explanation:

In a metal you have many free electrons, and fixed charges formed by nuclei and electrons that are not free; therefore the charge carriers are the free electrons, these have the same negative charge and due to the lectrostatic force they repel each other as far as possible without leaving the material, this implies that at two points there must be the same potential because otherwise there would be a net Caesarian force accumulating charge in a part that would be eliminated by the Coulomb force.

With this we can review the statements the strap is: it is zero because the electric gap is zero within the material

4 0

4 years ago

(please show work)

Helga [31]

c. -98 m/s

The motion of the rock is a uniformly accelerated motion (free fall) with constant acceleration $g=-9.8 m/s^2$ (negative since it is downward). Therefore, we can find its velocity using the following suvat equation

$v=u+gt$

where

v is the final velocity

u is the initial velocity

g is the acceleration of gravity

t is the time

For the rock in the problem,

u = 0

So, its velocity at t = 10 s is

$v=0+(-9.8)(10)=-98 m/s$

where the negative sign indicates that the velocity points downward.

d. -490 m

Since the motion is at constant acceleration, we can use another suvat equation:

$s=ut+\frac{1}{2}gt^2$

where

s is the displacement

u is the initial velocity

g is the acceleration of gravity

t is the time

Substituting:

u = 0

$g=-9.8 m/s^2$

t = 10 s

We find the rock's displacement:

$s=0+\frac{1}{2}(-9.8)(10)^2=-490 m$

where the negative sign means the displacement is downward.

5 0

4 years ago