All categories

3 years ago

: 1 khối khi lý tưởng nhận được nhiệt lượng 200J, khi đó khí nở ra đẩy pittong bằng 1 công 80J.

Physics

1 answer:

Ratling [72]3 years ago

3 0

Answer:

DU = 120 Joules

Explanation:

Given the following data;

Quantity of energy = 200 J

Work = 80 J

To find the change in internal energy;

Mathematically, the change in internal energy of a system is given by the formula;

DU = Q - W

Where;

DU is the change in internal energy.

Q is the quantity of energy.

W is the work done.

Substituting into the formula, we have;

DU = 200 - 80

DU = 120 Joules

You might be interested in

What is the kinetic energy of a ball that has a mass of 3 kg and is moving at 5 m/s?

Reil [10]

Hopefully this helps!!!

7 0

3 years ago

A student holds two pieces of paper at the top, 10 cm apart. The flat sides of the papers face each other.

Aleksandr [31]

When the student uses a straw to blow a stream of air between the papers, the two pieces of paper come together because the pressure between the two was lowered. This follows the Bernoulli’s Principle. Hope this answers the question. Have a nice day.

4 0

3 years ago

A block hangs at rest from the ceiling by a piece of rope. Consider the forces acting on the block. Is gravity present or absent

lyudmila [28]

Gravity is present but the rope is keeping it from falling so it may not look like it is present. By the way, air reistance is also present.

3 0

3 years ago

Read 2 more answers

Does this man look okay? hes all pink and stuff O_O hes teaching me frickin science

Harlamova29_29 [7]

Answer:

He is pink panther. How nerdy does he sound?

Explanation:

7 0

3 years ago

Write a brief note on gravitational force

olya-2409 [2.1K]

Answer:

$\boxed{ \boxed{ \sf{see \: below}}}$

Explanation:

$\underline{ \bold{ \underline{ \huge{ \boxed{ \sf{gravitational \: force}}}}}}$

------------------------------------------------------------------

According to Newton, the bodies in the universe attract each other. This force if attraction is called force of gravitation. For example, the earth attracts the moon and the moon attracts the earth too. Similarly, the earth attracts the Jupiter and the Jupiter attracts the Earth.

The effect of force of attraction of a big body on a small body can be observed but that of a small body on a big one cannot be observed. The sun is so large that even the sum of the masses of all its planets and the satellites is only about 0.0015th part of mass of the sun. Due to the gravitational force between the sun and the earth, the earth keeps on moving around the sun. Similarly, the gravitational force between the satellites and planets makes the satellites to revolve around the planets. So, The gravitational force is responsible for the existence of solar system. The effect of gravitation can be experienced more on liquid than solid. Hence, we see tides in the sea and ocean due to the force of gravitation of the moon and the sun on the earth when they lie on the same straight line.

--------------------------------------------------------------------

Hope I helped!

Best regards!!

7 0

3 years ago