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
BARSIC [14]
3 years ago
15

How much heat is needed to raise the temperature of 5g of water by 20oC?

Physics
1 answer:
Ratling [72]3 years ago
5 0
Required Heat = Q

Q = Mass * specific heat of water * change in temp.

Q = 5g * 1g/cal*degC * 20degC

Q = 100 cal of heat is required

To convert calories to Joules,
1 cal = 4.184 Joules

100cal = 418.4 J of heat is needed
You might be interested in
When were the following metals discovered:
Katen [24]

Answer:

A. 4000 BC

B. January 24, 1848

C. 1400 BC

Explanation:

Please mark brainliest.

3 0
2 years ago
you are pushing a friend in a wagon.you push with a force of 40N. your friend and wagon together have a mass of 80kg. ignoring f
hram777 [196]

Answer:

a= 0.5 m/s^2

Explanation:

3 0
2 years ago
Which two factors decrease as the kinetic energy of the particles in an object decrease
Ostrovityanka [42]

The particle temperature and the valency of the atom in the particles are the two parameters that decrease with the kinetic energy of the particles in an item.

<h3>What is temperature?</h3>

Temperature directs to the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity. Faster the motion of particles more the temperature.

Because an item possesses kinetic energy when it is moving, anything that prevents that motion will reduce the kinetic energy of the object.

A valence electron is an electron in the outermost shell associated with an atom that can experience the innovation of a chemical bond if the outer shell is not closed. Both atoms contribute one valence electron to create a shared pair.

More the valence electron more the motion of atoms results in more kinetic energy,

Hence the two factors decrease as the kinetic energy of the particles in an object will be the particle temperature and the valency of the atom in the particles.

To learn more about the temperature refer to the link;

brainly.com/question/7510619

#SPJ2

3 0
2 years ago
At the bottom of a frictionless ramp, a 2kg mass reaches a speed of 9 m/s, how high is the top of the ramp? *
noname [10]
V=√(2gs)
9=√(2×9.8×s)
s=4.1m
3 0
2 years ago
3. The electric field of a sinusoidal electromagnetic wave has an amplitude of 5.0 V/m. How much radiation energy passes through
True [87]

Answer:

e) 179 J

Explanation:

E_{o} = Magnitude of electric field = 5 V/m

A = Area of window = 1.5 m²

c = speed of electromagnetic wave = 3 x 10⁸ m/s

\Delta t = time interval = 1 h = 3600 sec

radiation energy is given as

U = (0.5)\epsilon _{o}E_{o}^{2}cA\Delta t

U = (0.5)(8.85\times 10^{-12})(5)^{2}(3\times 10^{8})(1.5)(3600)

U = 179 J

6 0
2 years ago
Other questions:
  • What is the change in internal energy if 60 J of heat are added to a system
    13·1 answer
  • An Athlete is injured on field his teammates see that the injury is moderately swollen in the athlete reports the area is numb w
    7·1 answer
  • A proton (mass m 1.67 10 27 kg) is being accelerated along a straight line at 3.6 1015 m/s2 in a machine. If the proton has an i
    11·1 answer
  • A light emits a wavelength at 303 nm. Give the energy of this light in joules.
    8·1 answer
  • Michael Faraday has a unit of electricity named after him. It is called the Mic and it measures the size of certain electrical c
    9·1 answer
  • That which travels in waves that are not the same length is called
    15·1 answer
  • In science, the inquiry process involves observing, questioning, ________, and summarizing.​
    12·2 answers
  • Why do fishermen like fishing during a full moon?
    11·1 answer
  • A body of mass 36 g moves with SHM of amplitude A = 13 cm and period T = 12 s. At
    7·1 answer
  • PLEASE HELP ONLY NINE DAYS LEFT I WILL GIVE BRANLIEST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!