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
fomenos
3 years ago
6

4 kg of water was

Physics
1 answer:
morpeh [17]3 years ago
6 0

Given :

Mass =5kg

T

1

=20

∘

C,T

2

=100

∘

C

ΔT=100−20=80

∘

C

Q=m×C×ΔT

where C= specific heat capacity of water

=4200J/(kgK)

Q=5×4200×80

=1680000 Joule.

=1680KJ

You might be interested in
Jack travels 80 km in 50 minutes. What is his speed in m/s?
Pie

Answer:

1.6 m/s?

Explanation:

80 ÷ 50 = 1.6 m/s

djdjdjksjsj

7 0
3 years ago
A helium-filled balloon occupies a volume of 15 cubic meters at sea level. the balloon is released and raises to a point in the
Elena L [17]

According to Boyle’s law, For a fixed amount of an ideal gas kept at a fixed temperature, P (pressure) and V (volume) are inversely proportional.

Therefore,

P_{1} V_{1} =P_{2} V_{2}

Given P_{1} = 1 atm , V_{1} = 15 \ cubic \ meter and P_{2} = 0.75\ atm.

Thus,

V_{2} = \frac{P_{1}\times V_{1}  }{ P_{2} } = \frac{1\times 15}{0.75} =20 m^3

5 0
3 years ago
Dumbo the elephant weights 13,000 pounds. What force would the Earths surface apply to Dumbo? 2.2 pounds = 1 kg
snow_lady [41]

Answer:

57908 N

Explanation:

Let's first convert Dumbo's mass into kg using the given relationship: 2.2 pounds =1 kg.

Then, 13000 lbs = 13000/2.2 kg = 5909 kg

Now, let's find the force of gravity on Dumbo at the surface of the earth, which would be in magnitude equal to the normal force that the Earth's surface applies on Dumbo.

F = m * a = 5909 kg * 9.8 m/s^2 = 57908 N

8 0
2 years ago
Which force is opposite gravity?
aev [14]

The answer you are looking for is A

5 0
3 years ago
Read 2 more answers
1. The thin top layer of the crust is called the Crust. What are the two types of
kolbaska11 [484]
Oceanic and continental
8 0
3 years ago
Read 2 more answers
Other questions:
  • What type of sound is produced when string vibrates rapidly?
    10·1 answer
  • It turns out that most of the electricity we use in Ohio comes from burning coal. Coal yields about 30 Gigajoules (GJ = 109 J) o
    13·1 answer
  • Consider two planets of mass m and 2m,
    14·2 answers
  • What is a substance?
    6·1 answer
  • I'm looking for the answers for 4-6 and how to do them. I have some answers already but I'm very unsure of them. Thank you!
    10·1 answer
  • A ball is dropped from the top of an eleven-story building to a balcony on the ninth floor. In which case is the change in the p
    6·1 answer
  • Motion with constant acceleration CER lab report <br><br> Can someone help!!
    14·1 answer
  • Why must 0 s always be clearly marked on a motion map?
    8·1 answer
  • If a source of waves produces 30 waves per second, what is the frequency in hertz?
    5·1 answer
  • What is the phase of a 20 gram of crystalline when its temperature is 250 degrees clesius
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!