A hot iron horseshoe (mass = 0.40 kg) which has just beenforged, is dropped into 1.35 L of water in a 0.30-kg iron potintially at 20?C. If the final equilibrium temperature is 25?C,estimate the initial temperature of the hot horseshoe

tabita57i 2021-02-25 Answered
A hot iron horseshoe (mass = 0.40 kg) which has just beenforged, is dropped into 1.35 L of water in a 0.30-kg iron potintially at 20?C. If the final equilibrium temperature is 25?C,estimate the initial temperature of the hot horseshoe
You can still ask an expert for help

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Answer

Velsenw
Answered 2021-02-26 Author has 91 answers
Loss of Heat energy = Gian of heat energy by water + Gain ofheat energy by iron pot.
ms*Ss*(tis-tfs) = mw*Sw*(tiw-tfw) + mp*Sp*(tip-tfp)
Where ms = mass of the shoe = 0.40kg.
Ss = specifi heat of shoe = 4400J/kg.K
tis = Intial temperature of shoe.
tfs = Final temperature of shoe = 25o
C. similarly for water and pot.
therefore 0.4*4400*(tis - 25) = 1.35*4186*5+0.3*4400*5
1760*(tis - 25) = 28255.5 + 6600
1760*(tis - 25) = 34855.5
By solving above eqation we get intial temperature of shoe is tis =44.8oC.
Not exactly what you’re looking for?
Ask My Question

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

You might be interested in

asked 2021-02-10
A 230kg crate hangs from the end of a rope of length L=12.0m. You push horizontally on the crate with a varying force F to move it distance d= 4.00m to the side.
a) What is the magnitude of F when the crate is in this final position? What are b) the total work done on it, c) the work done by the gravitational force on the crate, and d) the work done by the pull on the crate fromthe rope? e) Knowing the the crate is motionless before and after its displacement, use the answers to (b), (c), and (d) to find the work your force F does on the crate. f) Why is the work of your force not equal to the product of the horizontal displacement and the answer to (a)?
asked 2021-01-31
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. Because of the air jets, the friction impeding the horizontal motion of the platform is negligible. Each time the heart beats, blood is pushed out of the heart in a direction that is nearly parallel to the platform. Since momentum must be conserved, the body and the platform recoil, and this recoil can be detected to provide information about the heart. For each beat, suppose that 0.050 kg of blood is pushed out of the heart with a velocity of +0.30 m/s and that the mass of the patient and the platform is 85 kg. Assuming that the patient does not slip with respect to the platform, and that the patient and the platform start from rest, determine the recoil velocity.
asked 2020-11-01
As part of your work out, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when u push the platform, you compress the springs. You do 80.0G of work when u compress the springs 0.200m from their uncompressed length.
a) What magnitude of force must u apply to hold the platform in this position?
b) How much additional work must you do to move the platform 0.200m farther, and what maximum force must you apply?
asked 2020-12-24
Water stands at a depth H in a large, open tank whose sidewalls are vertical. A hole is made in one of the walls at a depth h below the water surface.
a) at what distance R from the foot of the wall does the emerging stream strike the floor?
b) How far above the bottom of the tank could a second hole be cut so that the stream emerging from it could have the same range as for the first hole?
asked 2021-08-11
Find the linear approximation of the function f(x)=1x at a=0 and use it to approximate the numbers 0.9 and 0.99.
asked 2021-11-21
How to multiply two summations together?
asked 2022-06-12
A distribution has a standard deviation of o=10. Find the z-score for each of the following locations in the distribution.
a) Above the mean by 5 points b) Above the mean by 2 points c) Below the mean by 20 points d) Below the mean by 15 points
Please don't give me the answer, but explain how I would work this out.

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question