1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svp [43]
3 years ago
11

A container contains 200g of water at initial temperature of 30°C. An iron nail of mass 200g at temperature of 50°C is immersed

in the water. What is the final water temperature? State the assumptions you need to make in your calculations.
[Given the value of specific heat capacity of water is 4200 J kg^-1 °C^-1 and that of iron is
450 J kg^-1 °C^-1]​
Physics
2 answers:
d1i1m1o1n [39]3 years ago
4 0

Answer:

Assuming there is no heat loss to the surrounding.

Heat lost by iron equals heat gained by water.

0.2(450)(50-x)=0.2(4200)(x-30)

x=31.94 °C

Explanation:

jeka943 years ago
3 0
Your answer would be 39.94 c
You might be interested in
EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE AHHHHHHHHHHHHHHHHHHHHHHHHHHH COCOA PEBBLES RULE HEHEHEHEHEHEHE
Andrew [12]

Answer:

AAAAAAAAHHHDHSFJSBDKFANEDASNXDEHAHDBWEEEEHJDBHBAH

AAHHH YES THEY DOO AAAHHH EEHSFJWEHASAAAAHJEHER

7 0
3 years ago
Read 2 more answers
Block on inclined plane experience a force due to gravity of 300N straight down. If the slope is inclined at 67.8°to the horizon
Tems11 [23]

Answer:

The component of the force due to gravity perpendicular and parallel to the slope is  113.4 N and 277.8 N respectively.

Explanation:

Force is any cause capable of modifying the state of motion or rest of a body or of producing a deformation in it. Any force can be decomposed into two vectors, so that the sum of both vectors matches the vector before decomposing. The decomposition of a force into its components can be done in any direction.

Taking into account the simple trigonometric relations, such as sine, cosine and tangent, the value of their components and the value of the angle of application, then the parallel and perpendicular components will be:

  • Fparallel = F*sinα =300 N*sin 67.8° =300 N*0.926⇒ Fparallel =277.8 N
  • Fperpendicular = F*cosα =  300 N*cos 67.8° = 300 N*0.378 ⇒ Fperpendicular= 113.4 N

<u><em>The component of the force due to gravity perpendicular and parallel to the slope is  113.4 N and 277.8 N respectively.</em></u>

6 0
3 years ago
Please answer correctly. <br>helppp plzzz<br>Urgent!!!!​
Ksenya-84 [330]

Answer:

Gamma rays are mostly used in the radiotherapy/ radiooncology to treat cancer. They can also be used to spot tumours. Gamma rays can kill living cells and damage malignant tumor

3 0
3 years ago
A situation that restricts something
Ostrovityanka [42]
Answer:

Laws

Explanation:
i don’t have one but i hope ur doing well during this quarantine
7 0
3 years ago
In the following diagram, the voltage is 1.5 volts and the resistance is 7.5 ohms. Use Ohm's law to determine the current in the
Basile [38]

I believe it is 0.2 amps  Hope this helps sorry if wrong

5 0
3 years ago
Read 2 more answers
Other questions:
  • A stone is dropped from rest from the top of a building. It takes Δt = 2.2 s for it to reach the ground.
    5·1 answer
  • Displacement vectors of 3 m and 5 m in the same direction combine to ma
    6·1 answer
  • How high is the rocket when the canister hits the launch pad, assuming that the rocket does not change its acceleration?
    15·1 answer
  • Many household products we consider necessary today such as AM and FM radios, televisions, wireless networks, cordless and cellu
    14·2 answers
  • if the current in a wire is 2.0 amperes and the potential difference across the wire is 10 volts what is the resistance of the w
    7·2 answers
  • Do anyone k ow the answers?
    10·1 answer
  • How much work is done when holding a 10 N bag of apples while waiting in line at the grocery store for 4 minutes? Group of answe
    10·1 answer
  • An object is thrown into the air at 60m/s, straight up. What is its velocity at the highest point?
    13·1 answer
  • I am pushing on a large box with 200N of force. Clint is pushing on the box with 200N of force in the opposite direction. Why wo
    7·1 answer
  • What demonstrates the flow of energy and materials through
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!