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Gekata [30.6K]
3 years ago
14

How do stop watches measure to get the accurate measurement?

Physics
1 answer:
solmaris [256]3 years ago
7 0

Answer:

They measure short time intervals of min and sec to an accuracy of +0.1s

Explanation:

pressing the 1st button starts it, and pressing the 2nd button stops it.

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The metric unit to measure work which equals one newton meter<br> is called?
Solnce55 [7]
The metric unit to measure work which equals one newton meter is called One Joule.
8 0
3 years ago
What charge do electrons have?<br> A. no charge<br> B. a positive charge<br> C. a negative charge
Mandarinka [93]
Electrons have a negative charge.
5 0
2 years ago
Write down short notes on:<br>a. Electrical energy​
PilotLPTM [1.2K]

Answer:

Explanation:

Electrical energy is energy derived from electric potential energy or kinetic energy.

Or,

Electrical energy is a form of energy resulting from the flow of electric charge. Lightning, batteries and even electric eels are examples of electrical energy.People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.

Hope it helped you.

4 0
2 years ago
An alternating source drives a series RLC circuit with an emf amplitude of 6.04 V, at a phase angle of +30.3°. When the potentia
Vinvika [58]

Answer:

-8.56V

Explanation:

Our values are given by,

e = 6.04 V

Φ = 30.3

VC = 5.32

We can calculate the voltage across the circuit with the emf formula, that is,

e(t) = e* sin(wt)

e(t) = 6.04 * sin(Φ + π)

e(t) = 6.04 * sin(32.5 + 180)

e(t) = -3.245 V

Now, Using Kirchoff Voltage Law,

e(t) - VR- VL - VC = 0

-3.24 - 0 - VL - 5.32 = 0

Finally we have the potential difference across the inductor.

VL = - 8.56 v

5 0
2 years ago
6. Draw conclusions: Newton’s first law states that an object in motion will travel at a constant velocity unless acted upon by
gavmur [86]
You can test if it’s true by holding a pencil in mid air over a table and the table is supposed to be the unbalanced forced that stopped the pencil from moving at the constant velocity it was going by.
5 0
3 years ago
Read 2 more answers
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