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german
3 years ago
12

List four ways in which lighting can be produced?

Physics
2 answers:
Softa [21]3 years ago
7 0

Answer/Explanation: well three ways are Direct Strike.

Side Flash.

Conduction.

cricket20 [7]3 years ago
5 0

Answer:

These are 5 sources of light.

Explanation:

  • Sun
  • Moon
  • LED (light emitting diode)
  • Tube light
  • Electric bulb
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xxTIMURxx [149]

Answer:use the formular distance over time i.e distance/time. Make sure to convert the distance from metres to kilometers and time from minutes to hours .

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7 0
4 years ago
PLEASE HELP ME
disa [49]

Answer:

try this

Explanation:

The energy of a falling object when it hits the ground is equaled to the energy it starts with because the potential energy is converted into kinetic energy entirely with the height at 0. This means the energy would be 200 J.

RESULT

8 0
3 years ago
100.0 J of work accelerates a 0.500 kg hockey puck across an ice rink (a frictionless
Olegator [25]

Answer:

d. 100.0 J

Explanation:

To solve this problem we must use the theorem of work and energy conservation. This tells us that the mechanical energy in the final state is equal to the mechanical energy in the initial state plus the work done on a body. In this way we come to the following equation:

E₁ + W₁₋₂ = E₂

where:

E₁ = mechanical energy at state 1. [J] (units of Joules)

E₂ = mechanical energy at state 2. [J]

W₁₋₂ = work done from 1 to 2 [J]

We have to remember that mechanical energy is defined as the sum of potential energy plus kinetic energy.

The energy in the initial state is zero, since there is no movement of the hockey puck before imparting force. E₁ = 0.

The Work on the hockey puck is equal to:

W₁₋₂ = 100 [J]

100 = E₂

Since the ice rink  is horizontal there is no potential energy, there is only kinetic energy

Ek = 100 [J]

It can be said that the work applied on the hockey puck turns into kinetic energy

6 0
3 years ago
The weight of an object is the same on Earth and the moon.
madreJ [45]

Answer:

false

Explanation:

3 0
3 years ago
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Juan draws a free-body diagram of an object that is in dynamic equilibrium moving to the left. Which labels correctly complete t
Goryan [66]

Y is -45 N and X is 30.

When learning about forces, you have to understand that everything will cancel out on an object. So if the normal force is 45, to cancel it, the force of gravity has to be the negative of it. The same idea goes to frictional force. If the frictional force is -30 N, then to cancel it out, it has to be 30 N.

3 0
3 years ago
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