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NNADVOKAT [17]
3 years ago
7

What do the spheres in this model represent?

Physics
1 answer:
san4es73 [151]3 years ago
7 0
I believe it’s B. Electrons
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If a swimmer pushes off a pool wall with a force of 250n, what is her acceleration.
grigory [225]

Her acceleration is

           (250) divided by (the swimmer's mass, in kilograms).

The unit is " meters per second² " .

3 0
3 years ago
If there are 6 coulombs of charge moving through a wire in 2 seconds. How many amps are moving through this wire?
Lelechka [254]

Answer:

Current = 3 Amperes

Explanation:

Given the following data;

Quantity of charge = 6 C

Time = 2 seconds

To find how many amps are moving through this wire;

Mathematically, the quantity of charge passing through a conductor is given by the formula;

Quantity of charge = current * time

Substituting into the formula, we have;

6 = current * 2

Current = 6/2

Current = 3 Amperes

6 0
3 years ago
How do photons help explain the photoelectric effect
iVinArrow [24]

Answer:

photon, collides with an electron and uses some of its energy to dislodge the electron.

Explanation:

7 0
3 years ago
"Whereas the velocity of a wind-blown wave can be calculated if you know its wavelength, what piece of information do you need t
Artist 52 [7]

Answer: Frequency

Explanation: The velocity of a wave is the product of wavelength and frequency. That is to say:

v=\lambda\cdot{f}

Hence, the frequency associated with the tsunami is needed to calculate the velocity.

7 0
3 years ago
An object that floats in water weighs 20 N in air.
Licemer1 [7]

Answer:

a. Weight of Object in Water = 20 N

b. Up thrust = 20 N

c. Weight of Water Displaced = 20 N

Explanation:

a.

The weight of the object remains same in the water as well. Because, the same force of gravity is acting there as well. Hence,

<u>Weight of Object in Water = 20 N</u>

<u></u>

b.

Since, the object floats on the water. Therefore, according to Archimedes' principle the up thrust force acting on the object must be equal to the weight of object:

Up thrust = Weight of object

<u>Up thrust = 20 N</u>

<u></u>

c.

From Archimedes' Principle, we know that the up thrust or the Buoyant force is equal to the weight of the water displaced by the object. therefore:

Weight of Water Displaced = Up thrust

<u>Weight of Water Displaced = 20 N</u>

7 0
3 years ago
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