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
denis23 [38]
2 years ago
14

What volume of water at O°C can a freezer make into ice cubes in 1.0 h, if the coefficient of performance of the cooling unit is

6.0 and the power input is 1.7 kilowatt? Express your answer to two significant figures and include the appropriate units.
Physics
1 answer:
masha68 [24]2 years ago
5 0

Answer:

volume of water is 0.1092 m3

Explanation:

We know that heat energy required to convert water into ice is given as

Q =mL

where L is Latent heat of fusion of ice is 336000 Jkg-1

Mass = \rho *V

           =1000*V

Q = 1000V*336*10^3

   Q = 336*10^6 V

ENERGY used by the freezer is given as

= 6.0*1.7*10^3 W = 10,200 w

energy provided per hour is Q = 10,200 W *1*60*60 s = 3.67*10^7 J

THEREFORE we have V

336*10^6 V = 3.67*10^7 j

v = .109 m3

volume of water is 0.1092 m3

You might be interested in
You are pushing a 60 kg block of ice across the ground. You exert a constant force of 9 N on the block of ice. You let go after
kotykmax [81]

Answer: d = 33 cm or 0.33 m

Explanation: In physics, Work is the amount of energy transferred to an object to make it move. It can be expressed by:

W = F.d.cosθ

F is the force applied to the object, d is the displacement and θ is the angle formed between the force and the displacement.

For the ice block, the angle is 0, i.e., force and distance are at the same direction, so:

W = F.d.cos(0)

W = F.d

To determine d:

d = \frac{W}{F}

d = \frac{3}{9}

d = 0.33 m

The distance d the block ice moved is 33 cm.

7 0
3 years ago
What should you do before inserting a wire into an outlet box?
Westkost [7]

Answer:

I think D it could maybe B

7 0
2 years ago
Read 2 more answers
What is the 5 quantitative research problems?<br>​
iogann1982 [59]

Answer:

There are four main types of Quantitative research: Descriptive, Correlational, Causal-Comparative/Quasi-Experimental, and Experimental Research. attempts to establish cause- effect relationships among the variables. These types of design are very similar to true experiments, but with some key differences.

Explanation:

Quantitative research is defined as a systematic investigation of phenomena by gathering quantifiable data and performing statistical, mathematical, or computational techniques.

<h3>I hope it will help you</h3>

<h3><em>please</em><em> make</em><em> me</em><em> brainlest</em></h3>

<h2>THANK U</h2>

7 0
3 years ago
A rectangular gasoline tank can hold 50.0 kg of gasoline when full. What is the depth of the tank if it is 0.500-m wide by 0.900
sweet-ann [11.9K]

Answer:

0.16 m

Explanation:

A rectangular gasoline tank can hold 50.0 kg of gasoline when full, and the density of gasoline is 6.8 × 10² kg/m³. We can find the volume occupied by the gasoline (volume of the tank).

50.0 kg × (1 m³/6.8 × 10² kg) = 0.074 m³

The volume of the rectangular tank is:

volume = width × length × depth

depth = volume / width × length

depth = 0.074 m³ / 0.500 m × 0.900 m

depth = 0.16 m

3 0
3 years ago
What would happen if you drop and egg
dexar [7]

Answer:

It would crack.

Explanation: The pressure from dropping it would crush the eggshell therefore breaking the egg.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the wave function y(x)-Find the probability of fi in the range -a
    10·1 answer
  • The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?
    10·2 answers
  • When the only force affecting an object is gravity,that object is in _______________
    15·1 answer
  • Which statement is accurate about mass or weight? A. Mass can be measured in newtons. B. Weight can be measured in pounds. C. A
    7·1 answer
  • Which contributes to the lack of evidence of the Period of Heavy Bombardment on Earth? A. Earth's volcanoes B. Earth's magnetic
    5·2 answers
  • A 1.3 kgkg block slides along a frictionless surface at 1.3 m/sm/s . A second block, sliding at a faster 5.0 m/sm/s , collides w
    9·2 answers
  • What is true about the inertia of two cars , car A of mass 1,500 kilograms and car B of mass 2,000 kilograms?
    15·1 answer
  • Calculate the activity of 60Co after 72hr, if you know the activity at time 0 is 35MBq (decay constant=0.001 day-1)?
    15·1 answer
  • A 5kg cart moving to the right with a velocity of 16 m/s collides with a concrete wall and
    12·1 answer
  • A student shines a mixture of red and blue light onto a blue toy car. What colour will the car appear?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!