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Sedbober [7]
2 years ago
6

Which of the following statements is true about static electricity?

Physics
2 answers:
Strike441 [17]2 years ago
4 0
Static electricity can be an alternating current
natta225 [31]2 years ago
3 0
Static electricity can be an alternating current.
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A 5 kilogram block is dropped from a height of 3 meters and falls straight to the ground. What is the work done by the force of
vazorg [7]

Answer:

Workdone = 147Nm

Explanation:

Given the following data;

Mass = 5kg

Height = 3m

We know that acceleration due to gravity is 9.8m/s²

First of all, we would find the force applied;

Force = mass * acceleration

Force = 5*9.8

Force = 49N

Now, to find the workdone;

Workdone = force * distance

Substituting into the equation, we have;

Workdone = 49 * 3

Workdone = 147Nm

5 0
3 years ago
What is the definition for the term density
horrorfan [7]

Density can be defined as the measure of mass of a substance per unit volume.

6 0
3 years ago
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Where does these choices go?
murzikaleks [220]

Answer:

Nothing goes to Kinetic Energy

Both-1, 2, 4

Potential Energy-3 and 5

Explanation:

6 0
3 years ago
If the atomic number of an atom is 4 and the mass number is 9, then how many electrons does it have
miskamm [114]
The atomic number of an atom says how many protons it has. This number cant change, since the atomic number is what gives elements their identities (in the periodic table, at least).
The mass number, on the other hand, says how many protons AND neutrons the atom has (so, the sum of P+ and N0). So, electrons have nothing to do with this number.
Atoms are neutrally charged, which means there has to be an equal number of positive and negative particles. The negative particles of an atom are its electrons, and since our atom has 4 protons, it must also have 4 electrons.
5 0
3 years ago
Which statement is true? Hydroelectric power is generated from moving water. Oil, a renewable resource, is processed to make jet
Mrac [35]

Answer: hydroelectric power is generated from moving water

Explanation: hydroelectric power is generated from moving water

6 0
3 years ago
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