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3 years ago

Which quantity must be the same for two bodies in thermal equilibrium?

Physics

1 answer:

ZanzabumX [31]3 years ago

6 0

C. Temperature of the 2 bodies are the same

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What is the kinetic energy of a 8kg cart pushed at a rate of 2 m/s?<br> Help please

GuDViN [60]

The kinetic energy of the cart is 16 J

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is calculated as:

$K=\frac{1}{2}mv^2$

where

m is the mass of the object

v is its speed

For the cart in this problem,

m = 8 kg is its mass

v = 2 m/s is its speed

Substituting, we find its kinetic energy:

$K=\frac{1}{2}(8)(2)^2=16 J$

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

7 0

3 years ago

Si se aplica una fuerza de 3n sobre un sistema se genera 15000 cal de calor generandose a su vez un trabajo de 300 j ¿en cuanto

Marizza181 [45]

Answer: +/- 71,65 Calorías

Explanation: Se deduce que la fuerza aplica para aumentar o disminuir la energía del generador.

+/- x Calorías

X = Equivalente de 300 Joules en calorías

Para poder pasar Joules a calorías.

Hacemos una regla de 3 simple

1 Calorías = 4,18 Julios

0,2392 calorías = 1 Julio

( 1 / 4,18 = 0,2392 calorías)

300 Julios = 71,65 calorías

(0,2392 calorías x 300 julios = +/- 71,65 calorías)

5 0

3 years ago

What does the law of conservation of energy state?

VikaD [51]

The total amount of energy remains constant in an isolated system. It implies that energy can neither be created nor destroyed, but can be change from one form to another.

6 0

3 years ago

Date

Sphinxa [80]

Explanation:

Given: time= 3 minutes

Distance =18 km

Speed = distance / time

= 18/3

=6 km/min

(I don't know in what unit u want the answer)

Hope this helps and answers your question..

Good Luck

6 0

3 years ago

Explain in two or three sentences how we can know what an object is made out of by looking at the light it gives off?

DaniilM [7]

Answer:

The act of 'seeing' an object is the result of light from any luminous source e.g. the Sun, a glowing candle or a torch, radiating outwardly from the source until it strikes the object and is reflected to travel to the observer's eyes where if it retains sufficient intensity it will form an image on the retina. i hope this helps

5 0

3 years ago