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2 years ago

8

A 735 kg object and a 1.37×1012 kg are located 2.59×104 m away from each other. What is the force due to gravity between the two

objects?

1 answer:

antiseptic1488 [7]2 years ago

8 0

Answer:

Fg=1.02*10^-4 N

Explanation:

Fg=Gm1m2/r^2

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A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil cont

EastWind [94]

Answer:

The number of turns in secondary coil is 4000

Explanation:

Given:

Current in primary coil $I_{P} = 500$ A

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In case of transformer the relation between current and number of turns is given by,

$\frac{N_{S} }{N_{P} } = \frac{I_{P} }{I_{S} }$

For finding number of turns in secondary coil,

$N_{S} = \frac{I_{P} }{I_{S} } N_{P}$

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2 years ago

An ambulance driver traveling at 31.0 m/s (69.3 mph) honks his horn as he sees a motorist ahead on the highway traveling in the

IrinaVladis [17]

Answer:

fo = 378.52Hz

Explanation:

Using Doppler effect formula:

$f'=\frac{C-Vb}{C-Va}*fo$

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Va = 31m/s

Replacing these values and solving for fo:

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2 years ago