3 years ago

A metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils.

Physics

1 answer:

drek231 [11]3 years ago

6 0

5.00 because it is correct

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A 41.0 kg child is riding a playground merry-go-round that is rotating at 60.0 rev/min. What centripetal force (in N) is exerted

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Answer:505.94 N

Explanation:

Given

mass of child (m)=41 kg

N=60 rpm

$\omega =\frac{2\pi N}{60}=4\pi rad/s$

Radius(r)=1.25 m

and centripetal acceleration is given by $m\omega ^2r$

$F_c=41\times (4\pi )^2\times 1.25=505.94 N$

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Which example involves the transformation of chemical energy directly into light energy?

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B) a glow stick , glow sticks are made up of certain chemicals and when they fuse together they start to glow which would be considered as light energy

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3 years ago

Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.650 µC charge and flies due west at a speed of

Ganezh [65]

Answer : $F=2808\times 10^{-11}\ N$

Explanation :

It is given that,

Charge, $q=0.650\ \mu C=0.65\times 10^{-6}\ C$

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Using Right hand thumb rule, the direction of force is in the plane perpendicular to the velocity and the magnetic field i.e. $-\hat{k}$ .

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The answer is convergent boundary

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