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
kherson [118]
2 years ago
11

A 2.7 kg block of ice at a temperature of 0.0◦C and an initial speed of 6.5 m/s slides across a level floor. If 3.3 × 105 J are

required to melt 1.0 kg of ice, how much ice melts, assuming that the initial kinetic energy of the ice block is entirely converted to the ice’s internal energy? Answer in units of kg.
Physics
1 answer:
bixtya [17]2 years ago
4 0

Answer:

The mass of ice melted is: 1.728*10^{-4}(Kg)

Explanation:

We need to remember that the latent heat of fusion is related as:L_{f} =\frac{Q}{m}, where Lf is the latent heat of fusion, Q is the amount of heat and m is the mass, and when there is a change of phase, e.g ice into liquid water, the temperature remains constant during this process. Now we calculate the kinetic energy of the block as: E_{k}=\frac{m*v^{2} }{2}=\frac{2.7*6.5^{2} }{2} =57.02(Joules), so this energy is used to change ice into liquid water, and knowing L_{f}=3.3*10^{5}(Joules/Kg), then we can replace in the equation the latent heat of fusion and get the mass of ice melted as:m=\frac{L_{f} }{Q} =\frac{57.04}{3.3*10^{5} } =1.728*10^{-4}(Kg)

You might be interested in
Nerve impulses in the human body travel at a speed of about 100 m/s. A 1.6 m tall man accidentally drops a hammer on his toe. Ho
EastWind [94]

time=distance/speed

1.6/100 secs = 0.016secs=16millisecs

4 0
3 years ago
El tiempo que habria que esperar para que el dia fuera 1 hora mas largo que es hoy
myrzilka [38]

Answer: el tiempo que habria que esperar para que el dia fuera 1 hora mas largo que es hoy

Explanation:

8 0
3 years ago
What is black body radiation? Explain in detail.
tangare [24]

An object that absorbs all radiation falling on it, at all wavelengths, is called a black body. When a black body is at a uniform temperature, its emission has a characteristic frequency distribution that depends on the temperature. Its emission is called black-body radiation

hope it helps

3 0
2 years ago
(50 Points) Need to know ASAP!! What human needs or desires were met through the development of alpaca populations??
alexira [117]

Alpacas were used for their meat, fibers for clothing, and art, and their images in the form of conopas.

8 0
3 years ago
This diagram shows two different forces acting on a skateboarder. The
ludmilkaskok [199]

Answer:

B

Explanation:

7 0
3 years ago
Other questions:
  • When are tides highest
    12·2 answers
  • Bob is pushing a box across the floor at a constant speed of 1.5 m/s, applying a horizontal force whose magnitude is 60 n. alice
    13·1 answer
  • The force on an object is given by the equation F = ma. In this equation, F is the force, m is the mass, and a is the accelerati
    8·1 answer
  • Looking for some help with this :)
    10·1 answer
  • If an area has all the wolves that it can support the wolf population has reached is what
    11·2 answers
  • Why are not all microorganism harmful?
    5·1 answer
  • Temperature of 273K is the temperature at which water
    14·1 answer
  • I need help ASAP PLEASE!!!
    5·1 answer
  • What is the current in a circuit if the charge passing each point is 10current <br>in 2s​
    7·1 answer
  • Newton’s Third Law:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!