which of the following is not used to protect us from the possibility of receiving an electric shock

What type of materials do mechanical waves move fastest through?

MAVERICK [17]

Solids
Hope this helped:)

4 0

4 years ago

Why is the scientific method described as cyclic?

Troyanec [42]

Because the scientific method can go around in a circle as many times as neccisary to get the results you need

8 0

3 years ago

What type of relationship exists between the altitude and the atmospheric density, and what would the atmospheric density be at

777dan777 [17]

Answer:

So this means an increase in either will decrease the other factor like density is mass per unit volume and it's also difficult to calculate with only altitude of 1,291 kilometers that's given.

Explanation:

4 0

3 years ago

What laws did dalton use to support the atomic theory.

kifflom [539]

Answer:

the law of conservation of mass and the law of constant compositionthe law of conservation of mass and the law of constant composition

5 0

3 years ago

A young diver is practicing his skills before an important team competition. Use the diagram below in order to analyze the energ

skad [1K]

Mass of the diver (m) = 90 Kg.
Height of the board from the ground (h) = 10 m.
Acceleration due to gravity (g) = 9.8 m/s^2.
Height of the diver from the ground when he reaches point C (x) = 5m
Initial velocity (u) = 0 m/s
We know, gravitational potential energy of a body = mass × acceleration due to gravity × height.
Therefore, the gravitational potential energy of the diver when he reaches point C (GPE) = mg(h - x)
or, GPE = [90 × 9.8 × (10-5)] J
or, GPE = [90 × 9.8 × 5] J
or, GPE = 4410 J
For a freely falling body,
v^2 - u^2 = 2gh
or, v^2 = 2gh
We know, kinetic energy of a body = 1/2 mv^2
Therefore, kinetic energy of the diver when he reaches point C (KE) = 1/2 m(2gx)
Here, 2gx = (2 × 9.8 × 5) = 98 (m/s)^2
We have already seen v^2 = 2gh
or, v = √2gh
So, the velocity of the diver = √2gx = √98 m/s = 9.9 m/s

Answers:

The gravitational potential energy of the diver when he reaches point C is 4410 J.

The velocity of the diver is 9.9 m/s.

Hope you could get an idea from here.

Doubt clarification - use comment section.

5 0

2 years ago

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which of the following is not used to protect us from the possibility of receiving an electric shock​

which of the following is not used to protect us from the possibility of receiving an electric shock