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oksian1 [2.3K]
3 years ago
5

What are 20 examples of energy transformation?

Physics
1 answer:
crimeas [40]3 years ago
8 0
1. <span>Chemical energy from food is converted to mechanical energy when the food is broken down and absorbed in the muscles. 
2.</span><span>The chemical energy from food can also be converted to thermal energy to keep the body warm.
3.</span><span>When lightning strikes a tree, electrical energy is converted to thermal energy. 
4.</span><span>Chemical energy stored within batteries can be converted to electrical energy. 
</span><span>5.Electrical energy can be converted to light energy when a light is switched out.
6.Electrical energy can also be converted to sound energy when it is used to power a loudspeaker.
7.Sound energy is converted to electric energy in a microphone.
</span><span>8.At hydroelectric water plants, gravitational potential energy is converted to electrical energy when water falls from a height.
9.Wind turbines convert the mechanical energy from the wind into electrical energy.
10.Solar panels convert light energy into electrical energy.
</span><span>11.Electrical energy can be converted to mechanical and sound energy in a blender.
12.Chemical energy is converted to mechanical energy in cars when gasoline undergoes combustion to power the engine.
13.When fuels such as gasoline are combusted, chemical energy is converted to heat and light energy.
14.Nuclear energy is converted to heat and light energy in a nuclear reaction as seen in the sun and in atomic bombs.
</span>15.<span>Plants convert light energy to chemical energy through photosynthesis. 16.During bungee jumps, gravitational potential energy is converted to elastic potential energy.
17.Friction converts kinetic energy to thermal energy.
18.Waves convert mechanical energy to electrical energy.
19.Geothermal energy in geologically active regions of the world can be harnessed as electrical energy.
</span>20.A <span>ball dropped from a height is an example of a change of energy from potential to kinetic energy.</span><span>

</span>
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m_a_m_a [10]
The answer is 18000 kgm/s

Momentum is mass times velocity so just do 750•24.
7 0
3 years ago
Which describes an object in projectile motion? Check all that apply.
Elodia [21]

Answer:

Gravity acts to pull the object down.

The object’s inertia carries it forward.

The path of the object is curved.

Explanation:

The motion of a projectile consists of two separate motions:

- A uniform motion along the horizontal direction, where the velocity is constant; since there are no forces along this direction, the velocity does not change, and so the object continues its motion for inertia --> so, the statement  "The object’s inertia carries it forward" is true.

- A uniformly accelerated motion along the vertical direction, with a constant downward acceleration (g=9.8 m/s^2, acceleration due to gravity). So, the vertical velocity changes, due to the presence of the gravity that acts to pull the object down.

- As a result of the combination of these two motions, the object follows a curved path (in particular, it is a parabolic path).

5 0
3 years ago
Ejercicio 1: Un cuerpo gira en un círculo de 8cm de diámetro con una rapidez constante
Lera25 [3.4K]

Answer:

Exercise 1;

The centripetal acceleration is approximately 94.52 m/s²

Explanation:

1) The given parameters are;

The diameter of the circle = 8 cm = 0.08 m

The radius of the circle = Diameter/2 = 0.08/2 = 0.04 m

The speed of motion = 7 km/h = 1.944444 m/s

The centripetal acceleration = v²/r = 1.944444²/0.04 ≈ 94.52 m/s²

The centripetal acceleration ≈ 94.52 m/s²

8 0
3 years ago
-A 180 kg hippo is riding a bicycle at a speed of 6.0
Vlad1618 [11]

Answer:

0.0675 seconds

Explanation:

From the question,

We apply newton's second law of motion

F = m(v-u)/t.................... Equation 1

Where F = force exert by the brake, v = final speed, u = initial speed m = mass of the bicycle, t = time.

make t the subject of the equation

t = m(v-u)/F................... Equation 2

Given: m = 180 kg, u = 6.0 m/s, v = 0 m/s (comes to stop), F = -1600 N ( agianst the dirction of motion)

Substitute these value into equation 2

t = 180(0-6.0)/-1600

t = -1080/-1600

t = 0.0675 seconds.

8 0
2 years ago
Which of the following would most likely be an example of a mass-transit disaster?
Aleonysh [2.5K]

Answer:

i think it is c if not im sorry if im wrong

Explanation:

7 0
3 years ago
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