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
saw5 [17]
2 years ago
11

Define heat capacity of a substance.Write the S.I unit of heat capacity.​

Physics
1 answer:
creativ13 [48]2 years ago
6 0

Define heat capacity of a substance:

  • The heat capacity of a substance can be defined as the amount of heat required to change its temperature by one degree.

Write the S.I unit of heat capacity:

  • Joule per Kelvin

\:  \:  \:

  • Joule per Celsius

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

\:  \:  \:

-,-

You might be interested in
How did the South American plate and African plate move?
garri49 [273]

Answer:

How did the South American Plate and African Plate move? Earth's plates move on top of a soft, solid layer of rock called the mantle. ... The South American and African Plates moved apart as a divergent boundary formed between them and an ocean basin formed and spread.

Explanation:

pls make me brainliest

4 0
3 years ago
Read 2 more answers
A 15 kg box is sliding down an incline of 35 degrees. The incline has a coefficient of friction of 0.25. If the box starts at re
valina [46]

The box has 3 forces acting on it:

• its own weight (magnitude <em>w</em>, pointing downward)

• the normal force of the incline on the box (mag. <em>n</em>, pointing upward perpendicular to the incline)

• friction (mag. <em>f</em>, opposing the box's slide down the incline and parallel to the incline)

Decompose each force into components acting parallel or perpendicular to the incline. (Consult the attached free body diagram.) The normal and friction forces are ready to be used, so that just leaves the weight. If we take the direction in which the box is sliding to be the positive parallel direction, then by Newton's second law, we have

• net parallel force:

∑ <em>F</em> = -<em>f</em> + <em>w</em> sin(35°) = <em>m a</em>

• net perpendicular force:

∑<em> F</em> = <em>n</em> - <em>w</em> cos(35°) = 0

Solve the net perpendicular force equation for the normal force:

<em>n</em> = <em>w</em> cos(35°)

<em>n</em> = (15 kg) (9.8 m/s²) cos(35°)

<em>n</em> ≈ 120 N

Solve for the mag. of friction:

<em>f</em> = <em>µ</em> <em>n</em>

<em>f</em> = 0.25 (120 N)

<em>f</em> ≈ 30 N

Solve the net parallel force equation for the acceleration:

-30 N + (15 kg) (9.8 m/s²) sin(35°) = (15 kg) <em>a</em>

<em>a</em> ≈ (54.3157 N) / (15 kg)

<em>a</em> ≈ 3.6 m/s²

Now solve for the block's speed <em>v</em> given that it starts at rest, with <em>v</em>₀ = 0, and slides down the incline a distance of ∆<em>x</em> = 3 m:

<em>v</em>² - <em>v</em>₀² = 2 <em>a</em> ∆<em>x</em>

<em>v</em>² = 2 (3.6 m/s²) (3 m)

<em>v</em> = √(21.7263 m²/s²)

<em>v</em> ≈ 4.7 m/s

4 0
2 years ago
What can happen to an eletron in an atom when thr atom gains or loses energy
RideAnS [48]
It moves closer or farther to the protons and neutrons. Hope this helps.
3 0
3 years ago
How much force must be applied to move a 3.0 kg toy train that would accelerate to 7.0 m/sec2?
stiv31 [10]

Answer: 21 N

Explanation:

Force=mass x Accceleration

So 21=3x7

5 0
3 years ago
Read 2 more answers
An 11.8 eV photon is absorbed by an electron in an atom, causing the electron to be excited from level 1 to level 3. The electro
densk [106]

Answer:

c. 7.7 eV

Explanation:

The computation of the photon emitted is shown below:

Given that

From level 1 to level 3, the energy absorbed by electrons is 11.8eV

And, when from level 3 to level3, the energy released by electron is 4.1eV

So, from level 2 to level 1, the energy released is

= 11.8 - 4.1

= 7.7

= 7.7eV

Hence, the third option is correct

The same is to be considered

And, the other options are wrong

6 0
2 years ago
Other questions:
  • A car, traveling at , encounters a dip in the road. The radius of curvature at the bottom of the dip is . Each of the car’s four
    11·1 answer
  • A ball is dropped out of a window and falls for 8.75 s. What is the ball's final velocity?
    13·1 answer
  • "A toy airplane flies clockwise at a constant speed in a horizontal circle of radius 8.0 meters. The magnitude of the accelerati
    6·2 answers
  • Which of the following best demonstrates the effect of static friction? A. A person pushing a couch and it slowly sliding across
    13·1 answer
  • What would happen happen if a car crashes​
    14·1 answer
  • For an object moving with constant negative acceleration, draw the following:
    13·1 answer
  • A 20 kg box has 1000 joules of potential energy on a shelf. How high is the shelf?
    14·1 answer
  • 500 coulombs of charge flow through a bulb for 25 seconds. Calculate the current trough the bulb.
    14·1 answer
  • Think of an example of a chemical change that some people might think is NOT a chemical change. Explain why it is.​
    9·1 answer
  • Friction is a force in which two objects __________. A. Collide and move in one direction B. Are repelled from each other C. Sli
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!