Question

Thermodynamics question! Please show all work and be legible :). If you could also please explain why you are using the equations you are, that would be great. Thanks!

A sealed cylinder-piston device is filled with .03 kg of air.
This air is at 27 deg Celcius and fills 100 liters. 5 kJ of heat is
then added to the air and work is then done on an object at
**constant pressure** by the piston until the end of
the transfer (with the air now at 50 deg Celcius). What is the work
done by the air on the object?

Answer #1

Calculate the entropy production for the
piston-cylinder power producing cycle you analyzed in,
problem 1.
Problem 1: A piston cylinder device has a
volume of 0.04 m3 and initially contains air at 293 K
and 1 bar. This device is used to perform a cycle in which the gas
is heated at a constant volume until the temperature reaches 1000
K. The air is allowed to expand following an isothermal process
until the volume is 3.5 times the original volume....

This is a heat transfer course, please explain and show work
neatly, and please do not copy from any other solutions because
they are incorrect. Thank you so much in advance
Consider atmospheric air at a velocity of V = 20 m/s and a
temperature of T= 20C, in cross flow over 10 mm square tube at 45
degrees, maintained at 50C.
Sketch
Assumptions
Calculate the air properties (show the interpolation
steps)
Re = ?
Nu = ? (reference the...

Please solve the following problems. You must show all work.
1. A 10.0 cm radius piston compresses
a gas isothermally from a height of 15.0 cm to 2.50 cm at a
constant pressure of 2.0 atm.
a) How much heat was added to the
gas?
b) Now if 7000 J of heat is added to
the system and the piston is only moves 5.0 cm up, what is the
change in the internal energy of the system is the pressure...

I have given the answers but please show the work
for all parts of the question.
(Measurement of Heat) A cubic brass shot with
volume of 8 cm3 (side lengths are: 2 cm) is heated from
20 °C to 620 °C and then dropped into a 100g Aluminum container
containing 400g of water. The temperature of the container and
water are initially 10 °C. (assume no heat exchange with the
surrounding air etc. and Density of brass is 8.73
g/cm3)...

Please how all work for the problem. Explain your steps and why
you did it so i can understand how you got the answer please. Any
calculation that cannot be done mentally must be written down, no
matter how trivial the calculation might be.
Find parametric equations for a circle with center at the origin
and radius 3 and clockwise orientation. Find parametric equations
for a circle with center at (−2,−1) and radius 3. The curve can
have any orientation.

Please show all work for
the problem. Explain your steps and why you did it so i can
understand how you got the answer please.Any calculation that
cannot be done mentally must be written down, no matter how trivial
the calculation might be.
Let v=〈10, 11, −2〉and u=〈0, 3, 4〉. Compute:
The cosine of the angle
between v
and u
also
the vector projvu

Please show work
Question 3
You throw a rock from the edge of a 54.0 m high cliff. The
initial velocity of the rock is 25.6 m/s at an angle of 24.5° up
from the horizontal. How long is the rock in the air? How far from
the base of the cliff does it land?
Question 4
A sled is traveling at 15.0 m/s. It slides to rest under the
influence of friction in 2.54 s. What is the coefficient...

SHOW ALL WORK! IF YOU USE EXCEL EXPLAIN THE EQUATIONS OR
SHOW THEM!!!! please
"Florida Citrus Inc. (FCI) produces and sells a sport drink in
the North American market. For years, it has sold in the Asian
market through a Tokyo-based importer. The contract with the
importer is up for renewal, and FCI decides to reconsider its Asian
strategy. After much analysis, it decides that three alternatives
warrant further consideration.
OPTION1: STAY WITH THE IMPORTER.
Sell through the current importer...

do all five questions
Question 1
20 pts
Ignoring the effects of air resistance, if a ball falls freely
toward the ground, its total mechanical energy
Group of answer choices
increases
remains the same
not enough information
decreases
Flag this Question
Question 2
20 pts
A child jumps off a wall from an initial height of 16.4 m and lands
on a trampoline. Before the child springs back up into the air the
trampoline compresses 1.8 meters. The spring constant...

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