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4 years ago

Pls help asap. will mark as brainliest if correct

Physics

2 answers:

Deffense [45]4 years ago

8 0

Answer:

Hey mate, here is your answer answer. Hope it helps you

Explanation:

1. If a worker has come into contact with electricity the worker may not be able to remove themselves from the electrical source. The human body is a good conductor of electricity. If you touch a person while they are in contact with the electrical source, the electricity will flow through your body causing electrical shock. Firstly attempt to turn off the source of the electricity (disconnect). If the electrical source can not readily and safely be turned off, use a non-conducting object, such as a fibreglass object or a wooden pole, to remove the person from the electrical source.

2. C- Electrical energy.The term electrical activity means that the food itself has the power to generate electric energy that persists some period of time. This work presents a purely renewable energy as energy comes. the zinc reacts with food tissue.

bixtya [17]4 years ago

5 0

Number2 is a chemical energy

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If all you need is the initial speed of the cork, you can solve this using only two of your given:
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If you take in consideration the movement of the cork, you know that it was both going up and forward at the same time, this means that it was moving at a diagonal direction. Now you can solve this by using the Pythagorean theorem where:

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Why? Because the vertical and the horizontal motion creates a movement that is diagonal, which when put in a free-body diagram, creates a right triangle.

Going back to your problem, when applying this, the diagonal of a right triangle is the hypotenuse, so this is what you are looking for. The horizontal and vertical motion will represent the other 2 sides of the triangle.

Now let's put that into your formula:

$c = \sqrt{ a^{2} + b^{2} }$

$Vi = \sqrt{ Vx^{2} + Vy^{2} }$

Where: Vx is your horizontal velocity
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$Vi = \sqrt{ Vx^{2} + Vy^{2} }$
$Vi = \sqrt{ 6.60^2} + 2.00^{2} }$
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