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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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name three sources of energy that can be absorbed by atoms to produce light. which source is used in bioluminescent organisms?
soldi70 [24.7K]

Explanation:

Heat energy

Solar energy

Electrical energy

Energy is the ability to do work. There are different forms of energy and they can be converted from one form to the other.

Heat energy is due to the changes in temperature of a body. When a body is heated, the electrons excite and gives off radiant energy which are visible to human eye. We often see red light when a body is heated.

Solar energy can be absorbed by organisms to produce light. Such an example is bioluminescence in some organisms. During the day, they trap solar energy that they glow with at night.

Electrical energy can also be used to produce light. We often see this in lightning and electrical bulbs in a circuit.

learn more:

Human eye and visible light brainly.com/question/5305525

#learnwithBrainly

3 0
3 years ago
An object with a mass of 1.5 kg changes its velocity +15 m/s during a time interval of 3.5 seconds what impulse was delivered to
Arada [10]
The answer is 10.5 kg m/s

Impulse (I) is the multiplication of force (F) and time interval (Δt): I = F · Δt

Force (F) is the multiplication of mass (m) and acceleration (a): F = m · a

Acceleration (a) can be expressed as change in velocity (v) divided by time interval (Δt): a = Δv/Δt

So: 
a = Δv/Δt         ⇒ F = m · a = m · Δv/Δt
F = m · Δv/Δt   ⇒ I = m · Δv/Δt · Δt
Since Δt can be cancelled out, impulse can be expressed as:
I = m · Δv = m · (v2 - v1)

It is given:
m = 1.5 kg
v1 = 15 m/s
v2 = 22 m/s

I = 1.5 · (22 - 15) = 1.5 · 7 = 10.5 kgm/s.
7 0
3 years ago
10 A particle in circular motion performs 30 oscillations in 6<br> seconds. Its angular velocity is?
Snezhnost [94]

Explanation:

Let omega = angular velocity (in rad/s). Then

omega = (# of oscillations)/(6 s)

= (30 osc)/(6 s) = 5 osc/s

We need to convert this to rad/s:

omega = (5 osc/s)(2π rad/osc)

= 10π rad/s

= 31.4 rad/s

7 0
3 years ago
Flo is driving her sports car at 30 m/s when a ball rolls out into the street in front of her. Flo slams on the brakes and comes
butalik [34]

Answer:

the acceleration of Flo's car is 10 m/s

Explanation:

6 0
2 years ago
A girl jumps down from a tree to the grass below. The higher her jump,_______.
olga_2 [115]

Answer:

D. The more the change in gravitational potential energy.

Explanation:

From Physics, we know that change in gravitational potential energy (\Delta U_{g}), measured in joules, is directly proportional to change in height (\Delta h), measured in meters. Then, the higher her jump, the more the change in gravitational potential energy.

We cannot speak of elastic energy, since statement of the problem does not speak of any deformable system (i.e. spring) in any form.

Therefore, the correct answer is D.

4 0
2 years ago
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