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OleMash [197]
2 years ago
5

A measure of the average kinetic energy per particle in a quantity of matter

Physics
1 answer:
Talja [164]2 years ago
4 0
Temperature, is a measure of the average kinetic energy of the particles in a substance. It is the kinetic energy of a typical particle.
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Match the following:
Nadusha1986 [10]

Answer:

Statement 1 can be matched with option f (Van der waal forces)

Statement 2 can be matched with option b (Liquid crystal)

statement 3 can be matched with option e (Thermal expansion)

Statement 4 can be matched with option g (Viscosity)

Statement 5 can be matched with option b (Fractional distillation)

Statement 6 can be matched with option a (Diffusion)

Statement 7 can be matched with option d (Miscible)

Explanation:

  1. Van der waal forces are weak inter-molecular bonds found between covalent molecules e.g molecules of graphite, noble gases etc
  2. Liquid crystals are substances that behave like liquids and its molecules orientate itself like a crystal (solid). They can be referred to as LCs.
  3. Thermal expansion is a phenomenon where by matter changes in shape, volume and area due to a change in temperature.
  4. Viscosity is a term used to describe a fluid's resistance to flow. It is also used to describe the internal friction that a moving liquid experiences. Oil is more viscose than liquid water
  5. Fractional distillation is a separation technique used in separating two or more miscible liquids of close boiling points. For example petrol and diesel oil can be separated using fractional distillation. An industrial application of this technique is Fractional distillation of crude oil where crude oil is separated into its components
  6. Diffusion is the movement of dissolved particles, gases, liquid from a region of higher concentration to a region of lower concentration until there is a equal balance. This can occur when you spray a perfume in one end of a room. You will get to smell the perfume at the other end after some time. Diffusion is fastest in gas as compared to liquids and solids.
  7. Miscible is a word used to describe liquids forming a homogeneous mixture when dissolved in each other. Miscibility is factor to be considered when separating mixture.
7 0
3 years ago
A snowboarder on a slope starts from rest and reaches a speed of 4.2 m/s after 7.3 s
Yakvenalex [24]

The car's acceleration will be 0.575 m/s².The unit of acceleration is m/sec².

<h3>What is acceleration?</h3>

The rate of velocity change concerning time is known as acceleration.

Given data;

Initial velocity, u= 0 m/s

Final velocity, v= 4.2 m/s

Time elapsed, t = 7.3 seconds.

To find ;

Acceleration, a

The acceleration when the change in velocity is observed by the formula as:

a= (v-u)/(t)

Substitute the given values:

a= (4.2-0)/(7.3)

a=(4.2)/(7.3)

a= 0.575 m/s²

Hence, the car's acceleration will be 0.575 m/s².

To learn more about acceleration, refer to the link brainly.com/question/2437624

#SPJ1

3 0
1 year ago
During which process do cells use oxygen to release stored energy?
Grace [21]
I believe it is respiration
6 0
3 years ago
A dragster is traveling at a constant rate of 45 m/s. How fast is it going when it has traveled 325 m?
Sergeeva-Olga [200]

The speed of the dragster after travelling 325 m is still 45 m/s

Explanation:

In this problem, we are told that the dragster is travelling at constant rate, therefore its speed is constant and it is

v = 45 m/s

Therefore, its speed will remain constant during the entire motion: therefore, after having travelled for 325 m, its speed will still be 45 m/s.

We can also calculate the time taken for the dragster to cover the 325 m. In fact, the speed in a uniform motion is given by

v=\frac{d}{t}

where:

v is the speed

d is the distance covered

t is the time elapsed

In this case, we have:

v = 45 m/s

d = 325 m

Solving for t, we find:

t=\frac{d}{v}=\frac{325}{45}=7.2 s

Learn more about speed:

brainly.com/question/8893949

#LearnwithBrainly

6 0
3 years ago
changes in the number of turns of the coil affects the deflection in the galvanometer. True or false?
Vadim26 [7]

Answer:True

Explanation:Because the deflection in galvanometer is calculated by the following formula;

6 0
3 years ago
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