Will a hot potato cool faster, slower, or the same if it is in a spaceship...
Will a hot potato cool faster, slower, or the same if it is in a spaceship located in space or a spaceship located on earth? For both cases, the inside of the spaceship is at 1 atm and 300 K. Explain.
Homework Answers
The rate of cooling is dependent on the temperature difference, heat transfer coefficient, surrounding pressure, area of surface , volume of surface and heat capacity of the material.
These factors remain same for the spaceship as there is no variation of these factors.
Only there will be change in gravity will be observed which has no effect on cooling rate of the potato.
HemHe the potato will cool at same rate irrespective of the position of the spaceship.
Please dear thumpsup for the answer. Thank you.
Add Answer to:
Will a hot potato cool faster, slower, or the same if it is in a
spaceship...
If someone is “fat,” that’s not so good. But if someone is “phat,” that’s good. “Cool” suggests hip. But the opposite of “cool” – “hot” – might also suggest the same thing, as in “Boy is she ‘cool.’ Y...
If someone is “fat,” that’s not so good. But if someone is “phat,” that’s good. “Cool” suggests hip. But the opposite of “cool” – “hot” – might also suggest the same thing, as in “Boy is she ‘cool.’ Yes, she is so ‘hot.’” Last semester, a student in my Principles of Marketing class told me, "Professor, this class is lit!" I didn't want to tell him that I wasn't sure if he was praising the class, or criticizing it! As...
10-58) An air preheater for a power plant consists of a cross-flow heat exchanger with hot...
10-58) An air preheater for a power plant consists of a cross-flow heat exchanger with hot exhaust gases used to heat incoming air at I atm and 300 K. The gases enter at 375°C with a flow rate of 5 kg/s. The airflow rate is 5.0 kg/s, and the heat exchanger has A = 110 m2 and U = 50 W/m2 oC. Calculate the heat-transfer rate and exit temperatures for two cases, both fluids unmixed and one fluid mixed. Assume...
Question I need answered is bold faced here: Relativistic Mass Still standing in the same spaceship......
Question I need answered is bold faced here:
Relativistic Mass Still standing in the same spaceship... With
respect to an observer in a given frame of reference, how fast
would the spaceship have to move in order for your [moving] mass to
be double your resting mass? From your perspective, what
will be your mass on board the spaceship? In the last two weeks we
have investigated time, length, and mass at very high velocities.
Identify the unifying physical principle...
80 cm3 of water takes 12 min to cool from 40?C to 15?C in a draft;...
80 cm3 of water takes 12 min to cool from 40?C to 15?C in a draft; it is contained in a copper calorimeter of mass 150 g and specific heat 0.1 cal*g-1*K-1 . The same volume of a dilute suspension of ceramic particles in alcohol, density 0.8 g/cm?3 , takes 8 min to cool from 40?C to 15?C in the same draft, using the same calorimeter. (a) Show that in both cases the time it takes to cool from 40?C...
I. Darth Vader's parking problem (Part I): Darth Vader "drives" his Star Destroyer of length =...
I. Darth Vader's parking problem (Part I): Darth Vader "drives" his Star Destroyer of length = 2,200 m home. He tries to park the spaceship in his newly-build garage, which is at rest. The contractor who build the garage messed up the blueprints and made the garage only 2,000 m long (the poor guy must not have known who he was working for). Darth Vader apporaches the garage at very high speed (close to the speed of light). From the...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell hypertonic(in terms of solute concentration) or hypotonic to its environment? will the cell gain or lose water? any ideas...?http://en.wikipedia.org/wiki/Water_potentialanalysis queswhat is water potential?Osmosis Lab /27819 Name: ________________________________ Date: ___________...
QUESTION 1: Heat Exchanges A concentric tube parallel floween s hot water saturated liquid from 30...
QUESTION 1: Heat Exchanges A concentric tube parallel floween s hot water saturated liquid from 30 to 90%Catate of St. The exh , having thermopla properties similar to air, enter and exit the exchange 254 and 100 p ectively. The heat force 1000 W/mK The water pipe has a diameter of 50 cm a) Determine the required length for the exchanger. b) Assuming water flow inside the tube to be fully developed, estimate the convection heat transfer coefficient c) If...
1. Constant Acceleration – 1. Constant Acceleration - 1 g Spaceship. Imagine that a spaceship can...
1. Constant Acceleration –
1. Constant Acceleration - 1 g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec2) for any desired length of time. Make a table as follows Veloci m/sec km/sec Distance Traveled meters kilometers millions of kilometer billions of kilometers billions of kilometers Elapsed time 1 minute our 1 day 1 week(7 days) 1 month (30 days) km/sec km/sec For each listed time, calculate both the attained velocity and...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec') for any desired length of time. Make a table as follows Elapsed time 1 minute 1 hour dadayS 1 week (7 days) 1 month (30 days) m/sec km/sec km/sec km/sec km/sec Distance Travel meters kilometers millions of kilometers billions of kilometers billions of kilometers For each listed time, calculate both the attained velocity and the distance traveled. (The numbers...
Problem 2 (30 Point) A copper tink concams hot waler which is maintained at 55 This...
Problem 2 (30 Point) A copper tink concams hot waler which is maintained at 55 This hot water tank han an inier diameter of 40 cms and a height of 2 m The tank is seoeed in a small room whichs is imentained at 27 C The convective heae irssier coeffcients on the iside and cutside surfaces of the tank are 50 W/m K and 12 Wi K. rospectively, The tank ise placed inside another copper thank of inside diameter...
10-58) An air preheater for a power plant consists of a cross-flow heat exchanger with hot exhaust gases used to heat incoming air at I atm and 300 K. The gases enter at 375°C with a flow rate of 5 kg/s. The airflow rate is 5.0 kg/s, and the heat exchanger has A = 110 m2 and U = 50 W/m2 oC. Calculate the heat-transfer rate and exit temperatures for two cases, both fluids unmixed and one fluid mixed. Assume...
Question I need answered is bold faced here:
Relativistic Mass Still standing in the same spaceship... With
respect to an observer in a given frame of reference, how fast
would the spaceship have to move in order for your [moving] mass to
be double your resting mass? From your perspective, what
will be your mass on board the spaceship? In the last two weeks we
have investigated time, length, and mass at very high velocities.
Identify the unifying physical principle...
QUESTION 1: Heat Exchanges A concentric tube parallel floween s hot water saturated liquid from 30 to 90%Catate of St. The exh , having thermopla properties similar to air, enter and exit the exchange 254 and 100 p ectively. The heat force 1000 W/mK The water pipe has a diameter of 50 cm a) Determine the required length for the exchanger. b) Assuming water flow inside the tube to be fully developed, estimate the convection heat transfer coefficient c) If...
1. Constant Acceleration –
1. Constant Acceleration - 1 g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec2) for any desired length of time. Make a table as follows Veloci m/sec km/sec Distance Traveled meters kilometers millions of kilometer billions of kilometers billions of kilometers Elapsed time 1 minute our 1 day 1 week(7 days) 1 month (30 days) km/sec km/sec For each listed time, calculate both the attained velocity and...
1. Constant Acceleration -1g Spaceship. Imagine that a spaceship can accelerate (starting from rest) at a sustained 1 g (9.8 m/sec') for any desired length of time. Make a table as follows Elapsed time 1 minute 1 hour dadayS 1 week (7 days) 1 month (30 days) m/sec km/sec km/sec km/sec km/sec Distance Travel meters kilometers millions of kilometers billions of kilometers billions of kilometers For each listed time, calculate both the attained velocity and the distance traveled. (The numbers...
Problem 2 (30 Point) A copper tink concams hot waler which is maintained at 55 This hot water tank han an inier diameter of 40 cms and a height of 2 m The tank is seoeed in a small room whichs is imentained at 27 C The convective heae irssier coeffcients on the iside and cutside surfaces of the tank are 50 W/m K and 12 Wi K. rospectively, The tank ise placed inside another copper thank of inside diameter...
Most questions answered within 3 hours.
-
For the following reaction, 0.128 moles of
potassium hydrogen sulfateare mixed with
0.504 moles of potassium...
asked 55 minutes ago -
1. What is the present value of $400, three years in the future
if the interest...
asked 1 hour ago -
The labor force minus the number of employed equals the number
of unemployed.
a. True
b....
asked 3 hours ago -
Determine the mass in units of grams [g] of 0.49 moles [mol]
of a new fictitious...
asked 3 hours ago -
A horizontal mass of M=5kg is on a spring and stretched to
x=0.5m when released from...
asked 5 hours ago -
26 of 50
"I have worked at the Arizona Humane Society for ten years, and
have...
asked 5 hours ago -
Compare and contrast zero based budgeting and incremental (or
base year) budgeting.
asked 5 hours ago -
4 pts 10. Which of the following hypothesis would be MOST
difficult to test experimentally? Group...
asked 5 hours ago -
A business owner makes 1,000 items a day. Each day he or she
contributes eight hours...
asked 5 hours ago -
A
circular loop in the plane of a paper lies inca0.65 T magnetic
field pointing into...
asked 5 hours ago -
A business owner is trying to decide whether to buy, rent, or
lease office space and...
asked 5 hours ago -
Thermal Storage Solar heating of a house is much more efficient
if there is a way...
asked 6 hours ago