This question is wrong because of not correct values.The Correct question is
A gas in a cylinder is held at a constant pressure of 1.80×10⁵Pa and is cooled and compressed from 1.70m³ to 1.20m³. The internal energy of the gas decreases by 1.40×10⁵J.
(a) Find the work done by the gas.
(b) Find the absolute value of the heat flow, |Q|, into or out of the gas, and state the direction of the heat flow.
(c) Does it matter whether the gas is ideal? Why or why not?
Answer:
(a) W= -9×10⁴J
(b) |Q|=2.3×10⁵
(c) It does not matter whether gas is ideal or non-ideal
Explanation:
Given
V₁=1.70m³
V₂=1.20m³
p=1.8×10⁵ pa
ΔU= -1.40×10⁵J
For (a) work done by gas
For (b) Heat flow |Q|
|Q|=ΔU+W
For (c) part
It does not matter whether the gas is ideal or not because the first law of thermodynamics which applied in our solution could applied to any material ideal or non ideal
Explanation :
Momentum of a body is defined as the product of its mass and velocity.
i.e.
So, when an object is moving, it has momentum.
If and are the masses of objects A and B and are their initial velocities. so, their initial momentum will be:
If after collision it bounces back with same velocities, then final momentum becomes:
-ve sign shows that the motion is in opposite direction.
so,
or
<em>Hence, its final momentum is in opposite direction of initial momentum.</em>
We can't tell from the information in the question.
Weight = (mass) x (acceleration of gravity).
In order to find any of those quantities, we need to know
the other TWO things.
We can't answer the question until we know either the mass
of the book, or its weight on some other planet other than Venus.
Difference: Potential Energy<span> Is E</span>nergy<span> Stored In An Object Due To Its Position Or Arrangement. </span>Kinetic Energy<span> Is E</span>nergy O<span>f An Object Due To Its Movement, Its Motion.
Alike : </span><span>They Are Both Forms Of Mechanical Energy As Both Depend Only On Geometrical And Temporal Quantities: Position, Time And Speed, Apart The Extensive Measurement Of The Mass.</span>
Answer:
La potencia o consumo en watt de una ampolleta conectada a una red de energía eléctrica doméstica monofásica de 220 volt, si la corriente que circula por el circuito de la ampolleta es de 0.45 ampere, es 99 Watts.
Explanation:
Potencia es la velocidad o rapidez con la que se consume la energía. Siendo la energía la capacidad que tiene un mecanismo o dispositivo eléctrico cualquiera para realizar un trabajo, también se puede definir potencia como la energía desarrollada o consumida en una unidad de tiempo. Su unidad de medida es el Watt.
La ley de Watt establece que la potencia eléctrica P suministrada por un elemento de circuito, es directamente proporcional al producto entre la tensión de la alimentación V del circuito y la intensidad de corriente I que circula por él.
Matemáticamente, la ley de Watt se expresa:
P = V.I
donde V es medida en Volt e I es medida en Ampere.
En este caso:
Reemplazando:
P= 220 volt* 0.45 ampere
P= 99 Watts
<u><em>La potencia o consumo en watt de una ampolleta conectada a una red de energía eléctrica doméstica monofásica de 220 volt, si la corriente que circula por el circuito de la ampolleta es de 0.45 ampere, es 99 Watts.</em></u>