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dlinn [17]
2 years ago
10

State two (2) examples of osmosis occurring in everyday life

Physics
1 answer:
VMariaS [17]2 years ago
3 0
When you keep raisin in water and the raisin gets puffed.
Movement of salt-water in animal cell across our cell membrane.
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9. A pendulum bob is made with a ball filled with water. What would happen to the frequency of vibration of this pendulum if a h
Ilya [14]

Answer:

The frequency of vibration will be unchanged.

Explanation:

The frequency of oscillation of a simple pendulum is given by

f = \dfrac{1}{2 \pi}\sqrt{\dfrac{g}{L}}

where, g is the acceleration due to gravity and L is the length of the pendulum.

It can be seen from the formula that the frequency of the pendulum is independent of the mass.

Thus, the frequency of vibration will be same.

6 0
3 years ago
A horse runs 350 meters in 23 seconds. What was the average speed of the horse? Round your answer to a tenth ​
OLga [1]

Answer:

Horse/Speed

55 mph

rounded to the tenth?  either 60 or 50

but 350 would stay like that  i believe!

Explanation:

5 0
2 years ago
According to quantum physics, measuring velocity of a tiny particle with an electromagnet
lidiya [134]

Answer:

Option A.

Explanation:

In quantum physics <u>there is a law to relate the position and the momentum of the particle</u>, it says that if we know with precision where is a quantum particle, we can not know the momentum of this particle, in other words, the velocity of the particle. So, when we measure the velocity of the particle we find the correct value of the particle, but we can not determine with accuracy where is the particle. This law is known as the Heisenberg's uncertainty principle and, its expressed as follows:    

\Delta x \Delta p \geq \frac{h}{4 \pi}

<em>where Δx: is the position's uncertainty, Δp: is the momentum's uncertainty and h: is the Planck constant.</em>  

Therefore, the correct answer is A: measuring the velocity of a tiny particle with an electromagnet has no effect on the velocity of the particle. It only affects the determination of the particle's position.      

I hope it helps you!

4 0
3 years ago
State a situation in which force is applied on a body, but no work is done​
LenaWriter [7]
If you press on your arm force is applied work done is if it moves.
One answer could be if I was to press my hand on a table.
Have a great day!
8 0
3 years ago
Read 2 more answers
True or false mechanical waves need a medium through which to transport energy
a_sh-v [17]

Answer:True

Explanation: The mechanical waves need a medium through which to transport energy because the perturbation travels inside of the medium so it needs molecules that connect elastically the displacement of the wave. For example the sound mainly uses the air molecules to transport the energy also the sound can be traveled in solid materials like metal rods.

4 0
3 years ago
Read 2 more answers
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