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xenn [34]
3 years ago
5

2. What is the momentum of a football of mass 500g traveling at a

Physics
1 answer:
Mama L [17]3 years ago
5 0

Answer:

5000 ns

Explanation:

hope this helps

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5. Describe the shape of the waveform in the secondary coil for a sine, square and triangle wave in the primary coil. How does t
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When primary coil is exited by sin wave,this will result in sin wave in secondary coil as well.According to law,flux induced in the secondary coil will have same waveform as in the primary coil.

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3. What exerts a greater force on the table of 2 kg book lying flat or a 2 kg book on its
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Answer:

A book on its side exerts a greater force.

Explanation:

Pressure = Force / Area

Assuming that 1kg = 10N

2kg = 20N

Area of book lying flat = 0.3m × 0.2m

                                     = 0.6m²

Pressure of book lying flat = 20N / 0.6m²

                                            = 30Pa (1 s.f.)

Area of book on its side = 0.2m × 0.05m

                                        = 0.01m²

Pressure of book on its side = 20N / 0.01m²

                                               = 2000Pa (1 s.f.)

Since 2000Pa (1 s.f.) > 30Pa (1 s.f.), a book on its side applies greater pressure than lying flat.

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2 years ago
The main difference between internal combustion engine and the diesel engine is?
Sav [38]
<span>The difference between a internal combustion engine and a diesel engine is the ignition, But a Diesel engine is an internal combustion engine. The both burn internal one uses compression to fire the other uses ignition system.</span>
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3 years ago
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Which of the following is NOT an indicator of a physical change?
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Answer:

1.  C.  The change is easily reversible

2. A.  a physical change

Explanation:

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2 years ago
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