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Sunny_sXe [5.5K]
3 years ago
5

Does mass influence how quickly an object falls?

Physics
2 answers:
Tasya [4]3 years ago
6 0
Both fall at the same time
almond37 [142]3 years ago
3 0
Both objects fall at the same speed. Mass does not affect the speed of falling objects, assuming there is only gravity acting on it.
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What a scientist often conducts a controlled experiment,which is?
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8 the height variations

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1. The speed of sound in air is roughly 1,484 m/s. How far, in meters, would a sound wave travel in 3 seconds?
kobusy [5.1K]
Speed = distance/time taken

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When two things are the same temperature:
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Explanation:

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3 years ago
A thin film of cooking oil ( n = 1.47 ) is spread on a puddle of water ( n = 1.35 ) . What is the minimum thickness D min of the
zlopas [31]

Answer:

The minimum thickness of the oil is 77.55 nm

Explanation:

Given:

Refractive index of oil n_{o} = 1.47

Refractive index of water n_{w} = 1.35

Wavelength of light \lambda= 456 \times 10^{-9} m

From the equation of thin film interference,

The minimum thickness is given by,

    2n_{o} t = (n+\frac{1}{2}) \lambda

Where n = 0,1,2,3.........,t = thickness

Here we have to find minimum thickness so we use n = 0

     2n_{o} t  =( 0+\frac{1}{2} )\lambda

   t = \frac{\lambda }{4 n_{o} }

   t = \frac{456 \times 10^{-9} }{4 \times 1.47}

   t = 77.55 \times 10^{-9} m

   t  = 77.55 nm

Therefore, the minimum thickness of the oil is 77.55 nm

7 0
4 years ago
A 40kg skier starts at the top of a 12 meter high slope at the bottom she is traveling g 10m/a how much energy does she lose to
nikdorinn [45]
Energy at top = U = mgh = 40 * 9.8 * 12 = 4704 J

Energy at bottom = 1/2 mv² = 1/2 * 40 * 10² = 4000 / 2 = 2000 J

Energy Lost = Final - Initial = 4704 - 2000 = 2704 J

In short, Your Answer would be 2704 Joules

Hope this helps!
3 0
4 years ago
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