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
Viktor [21]
3 years ago
12

1. Calculate the total heat content of 10 kg of ice at -23°C.?

Physics
1 answer:
vesna_86 [32]3 years ago
8 0

To solve the problem, we must know the heat capacity of ice and water.

For Cp = 2090 J/kg C

H = mCpT

H = (10 kg) ( 2090 J/ Kg C) ( -23 C)

H = - 480700 J

For water Cp = 4180 j/kg C

H = (100 kg) ( 4180 J/kg C) ( 60 C)

<span>H = 2508000 J</span>

You might be interested in
Convert 27,549 into scientific notation
dezoksy [38]
2.7549 x 10^4 is the answer I hope this helped u
7 0
2 years ago
5. 3 women push a stalled car. Each woman pushes with a 400N force. What is the mass of the car if the car accelerates at 0.85 m
iris [78.8K]

Answer:

<h2>470.59 kg</h2>

Explanation:

The the mass of the car can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{400}{0.85}  \\  = 470.58823...

We have the final answer as

<h3>470.59 kg</h3>

Hope this helps you

7 0
3 years ago
What is an independent variable
snow_tiger [21]

Answer:

A variable (often denoted by x ) whose variation does not depend on that of another.

Explanation:

8 0
3 years ago
Which statements are true for two oppositely charged, isolated parallel plates: C=capacitance, U=stored energy (Q and -Q = charg
vlada-n [284]

Answer:

Explanation:

1) True. The stored energy (U) is proportional to the electric field strength (E). The electric field strength decreases when a dielectric is introduced hence inserting a dielectric decreases U.

2) False. From the formula C=\frac{Q}{V}=\frac{Q}{Vd}, capacitance is inversely proportional to distance hence if the distance is doubled, capacitance decreases.

3) False. As the distance between the electric field and the object increases, its electric field decreases.

4) False. If a dielectric is inserted, the plates are further separated. Q stays the same.

5) True. The electric field strength decreases when a dielectric is introduced and  capacitance is inversely proportional to electric field hence Inserting a dielectric increases C

6) True. If a dielectric is inserted, the plates are further separated. Q stays the same.

7) True. When the distance is doubled, U increases

7 0
3 years ago
Sorry relized it wasnt a good picxD 4 please WILL MARK BRANLIEST
Andrej [43]
I think Y is the answer to number 4
7 0
3 years ago
Other questions:
  • An object is in motion when it undergoes a continuous change of what?
    8·1 answer
  • A 500N person stands in an elevator that is moving downward at constant speed. The force that the floor exerts on the person mus
    9·2 answers
  • What is the biggest barrier to the use of renewable energy in the United States?
    8·1 answer
  • When you are paddling a canoe, you push the water backwards with your paddle, witch in turn will push you forward. Witch law of
    5·1 answer
  • Select the correct answer.
    7·2 answers
  • What are the steps of the scientific method?
    14·2 answers
  • imagine you are going on a rid in a spacecraft next to earth. Your trip takes one whole year. Describe earth's tilt in the north
    7·1 answer
  • What is the total resistance in the circuit? (include unit in answer - ohms)
    14·1 answer
  • The terminal velocity is not dependent on which one of the following properties? the drag coefficient 1 the force of gravity 2 c
    5·1 answer
  • An object weighs 2.6 N in air and 2.2N when completely immersed in water. Determine the relative density of the object (2mks​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!