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Bad White [126]
3 years ago
11

What is happening in this picture?

Physics
2 answers:
Alexandra [31]3 years ago
7 0
The answer is b no problem
Neporo4naja [7]3 years ago
4 0
<h3>Answer;</h3>

B. Energy is being added to cause evaporation.

<h3><u>Explanation;</u></h3>
  • Evaporation takes place when liquid is heated.  As the molecules of the liquid absorb heat, they begin to move around more quickly due to higher kinetic energy. This gives them the energy to break the bonds that connect them to other water molecules.
  • When the molecules are moving fast enough, they are able to disperse. They leave the surface of the liquid as gas molecules.
  • Therefore, by adding energy, molecules move faster and break away from the others. The temperature that evaporation occurs is called the vaporization point or boiling point.
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Question 1
galina1969 [7]
1/f= 1/di+1/do
1/f=1/90m+1/40m
1/f ≈27.7m
7 0
3 years ago
Suppose a radar gun sends out radio waves with a frequency of 2,000,000.0 Hz. The waves bounce off a moving car and return with
Igoryamba

Answer:

300,000,030m/s

Explanation:

Using the relationship between frequency and speed of a wave;

F ∝ V

F = kV

k = F/V

F1/V1 = F2/V2 = k

Let F1 be the frequency of the radio wave = 2,000,000.0Hz

V1 be the speed of light = 300,000,000m/s

F2 = frequency produced by the car = 2,000,000.2Hz

V2 be the velocity of the moving car

Substituting this values in the equation above;

2,000,000/300,000,000 = 2,000,000.2/V2

Cross multiplying

2,000,000V2 = 300,000,000×2,000,000.2

2V2 = 300×2,000,000.2

V2 = 150×2,000,000.2

V2 = 300,000,030m/s

The velocity of the car is 300,000,030m/s

6 0
3 years ago
What motion makes the acceleration unchanged?
Rashid [163]

Answer:

The acceleration is equal to the net force divided by the mass. If the net force acting on an object doubles, its acceleration is doubled. If the mass is doubled, then acceleration will be halved. If both the net force and the mass are doubled, the acceleration will be unchanged.

7 0
2 years ago
Read 2 more answers
Imagine that two balls, a basketball and a much larger exercise ball, are dropped from a parking garage. If both the mass and ra
pashok25 [27]

Here if we assume that there is no air friction on both balls then we can say

F = mg

now the acceleration is given as

F = ma = mg

a = g

so here both the balls will have same acceleration irrespective of size and mass

so we can say that to find out the time of fall of ball we can use

y = \frac{1}{2}gt^2

t = \sqrt{\frac{2y}{g}}

now from above equation we can say that time taken to hit the ground will be same for both balls and it is irrespective of its mass and size

3 0
4 years ago
What factors does weight depend on?
Virty [35]

Answer:

m, g

Explanation:

G=m.g

m mass

g gravity

6 0
3 years ago
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