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4 years ago

What are the different types of Energy transformations and Energy Transfers?

Physics

1 answer:

Harman [31]4 years ago

7 0

Explanation:

Here are some of the ways that energy can change (transform) from one type to another:

The Sun transforms nuclear energy into heat and light energy.

Our bodies convert chemical energy in our food into mechanical energy for us to move.

An electric fan transforms electrical energy into kinetic energy.

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Help please

trasher [3.6K]

Answer:

This doesn't seem to really be a physics problem:

In physics stress is usually defined as Young's Modulus or Bulk Modulus

In the case of Young's Modulus Y would be defined as

Y = Stress / Strain or Force / Area

So the stress would be the force acting on some particular area: in the case of a wire the area is merely the area of the wire where the force is applied.

So maybe, they mean that stress would be an increase in blood pressure or some other physiological reaction due to an externally applied force.

6 0

3 years ago

A point charge q1 is held stationary at the origin. A second charge q2 is placed at point a, and the electric potential energy o

MAVERICK [17]

Answer:

$U_{b}=+7.3*10^{-8}J$

Explanation:

When a particle moves from a point where the potential energy is Ua to point where it is Ub,the change in potential energy is is equal to work done

$W_{a-b}=U_{a}-U_{b}\\ U_{b}=U_{a}-W_{a-b}\\$

Where Wa-b here is negative this means Ub is greater Ua. Therefore potential energy increases

$U_{b}=(+5.4*10^{-8}J )-(-1.9*10^{-8}J)\\U_{b}=+7.3*10^{-8}J$

7 0

3 years ago

A 62 kg skydiver moving at terminal speed falls 50 m in 1 s. What power is the skydiver expending on the air?

IgorLugansk [536]

Answer:

P = 30380 W

Explanation:

given,

mass of the skydiver, m = 62 Kg

distance, s = 50 m

time, t = 1 s

we know,

$Power= \dfrac{work\ done}{time}$

$Power= \dfrac{F.s}{t}$

F = m g

$Power= \dfrac{m g.s}{t}$

inserting all the values

$P = \dfrac{62\times 9.8\times 50}{1}$

P = 30380 W

hence, Power the skydiver expending on the air is 30380 W

3 0

3 years ago

When molecules collide, _________ energy is transferred from one molecule to the next.

slavikrds [6]

The answer is heat energy

explanation: Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer to together, than in gases, where particles are further apart.

7 0

3 years ago

Which statement best supports the claim that there is such a thing as a perfect pitch?

givi [52]

I would say the answer is B

Hope it helps!

5 0

3 years ago