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yKpoI14uk [10]
3 years ago
5

Physics Question - Matching

Physics
2 answers:
KiRa [710]3 years ago
7 0
1) G

2) E

3) D

4) I

5) J

6) C

7) H

8) F

9) B

10) A

I think... i am not 100% sure....
Darina [25.2K]3 years ago
7 0

Answer:

1) A

2) G

3) D

4) I

5) J

6) C

7)F

8) E

9) H

10)B

Explanation:

Electron volt:

small unit of energy is known as electron Volt it is represented by eV

radiation:

energy and/or mass being ejected from a nucleus in the form of radiation.

Photon:

smallest amount of light  is known as photon.

X-ray

radiation emitted from decelerated electrons are known as X-ray

Planck's constant :

planck's Constant is denoted by h=6.63 x 10^-34 js

Photoelectric effect:

light shining on a metal surface causes electrons to be emitted from the surface this phenomena is known as photoelectric effect.

Uncertainty principle:

According to uncertainty principal exact position and momentum of microscopic particle cannot be determined simultaneously.

De Broglie wave:

wave associated with moving matter is known as De Broglie wave.

best model for light includes both the wave theory and quantum theory

Quanta:

Light travel in the form of packets of energy and each packet of energy is known as photon or quanta.

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The pressure exerted by 15m of liquid is 1500pa.The acceleration due to gravity g=10m/s^2.Calculate the density liquid.​
Natali [406]

Answer:

1500 divided by 150(15m x 10m/s^2) = 10

8 0
3 years ago
A catapult used by medieval armies hurls a stone of mass 32.0 kg with a velocity of 50.0 m/s at a 30.0 degree angle above the ho
NISA [10]

Answer:

The horizontal distance traveled when the stone returns to its original height = 220.81 m

Explanation:

Considering vertical motion of catapult:-

At maximum height,

Initial velocity, u =  50 sin30 = 25 m/s

Acceleration , a = -9.81 m/s²

Final velocity, v = 0 m/s

We have equation of motion v = u + at

Substituting

    v = u + at

    0 = 25  - 9.81 x t

    t = 2.55 s

Time of flight = 2 x Time to reach maximum height = 2 x 2.55 = 3.1 s

Considering horizontal motion of catapult:-

Initial velocity, u =  50 cos30 = 43.30 m/s

Acceleration , a = 0 m/s²

Time, t = 5.10 s

We have equation of motion s= ut + 0.5 at²

Substituting

   s= ut + 0.5 at²

   s = 43.30 x 5.10 + 0.5 x 0 x 5.10²

  s = 220.81 m

The horizontal distance traveled when the stone returns to its original height = 220.81 m

5 0
3 years ago
A quantity that has only one magnitude
Len [333]

Answer:

scalar quantity

Explanation:

Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude.

3 0
3 years ago
2.A chef leaves a copper spoon, a wooden spoon, and a steel spoon in a pot of boiling soup for several minutes. Which spoon shou
Shkiper50 [21]

Answer:

Option B

Explanation:

The correct answer is Option B

After leaving the spoon of copper , steel and wooden in the soup for several minute chef can grab Wooden spoon with bare hand.

Wooden material are insulator of heat means heat does not transfer through the wooden material.

where as heat transfer take place in steel as well as copper and chef will not be able to lift the spoon bare hand.

5 0
3 years ago
Read 2 more answers
A hockey player applies an average force of 80.0 N to a
denpristay [2]

Answer:

Impulse =  8.0Ns

Explanation:

Given

Force = 80.0N

Mass = 0.25kg

Time = 0.10s

Required

Determine the impulse

The impulse is calculated as follows:

Impulse =  Force * Time

Substitute values for Force and Time

Impulse =  80.0N * 0.10s

Impulse =  8.0Ns

<em>Hence, the impulse experienced is 8.0Ns</em>

5 0
3 years ago
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