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kvv77 [185]
3 years ago
12

In a heat engine, if 500 J of heat enters the system, and the piston does 300 J of work.

Physics
2 answers:
Alex Ar [27]3 years ago
7 0

Answer: The final answer is 1,700 J

Explanation: According to first law of thermodynamics:

=Final energy-initial energy=Change in internal energy

q = heat absorbed or released

w = work done by or on the system

w = work done by the system=  {Work done by the system is negative as the final volume is greater than initial volume}

q = +500J   {Heat absorbed by the system is positive}

w = work done by the system = -300J

U2- 1500J= + 500J --300J

U2= 1700J

Ket [755]3 years ago
6 0
1700 J you’re welcome
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natima [27]

Answer:

P = 800 Pa

Explanation:

The pressure of water at the bottom of the pot can be given by the following formula:

P = \rho g h

where,

P = Pressure at the bottom of the pot = ?

ρ = density = 1000 kg/m³

h = height of water = 8 cm = 0.08 m

Therefore,

P = (1000\ kg/m^3)(10\ m/s^2)(0.08\ m)

<u>P = 800 Pa </u>

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What's three pieces of evidence that Wegener used to support his theory ( Alfred Wegener’s hypothesis of continental drift state
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Answer:

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Reil [10]

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Computes average speed when a person walk for 1 minute at speed of 1.5 m/s and another 1 minute at speed of 3.5 m/s along a stra
Vinvika [58]

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2.5 m/s

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3 years ago
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photoshop1234 [79]

Answer:

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Explanation:

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