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never [62]
3 years ago
5

EASY BRAINLIEST PLEASE HELP!!

Physics
2 answers:
Soloha48 [4]3 years ago
7 0

Answer:

Solution given:

frequency[f]=x

velocity[V]=15000m/s

wave length=59m

we have

wave length=\frac{V}{f}

59m=\frac{15000}{x}

x=\frac{15000}{59}=254.Hz

frequency=254Hz

seropon [69]3 years ago
6 0

Answer:

look at the picture i have sent

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3 years ago
Twenty grams of a solid at 70°C is place in 100 grams of a fluid at 20°C. Thermal equilibrium is reached at 30°C.
zaharov [31]

Answer:

c. is more than that of the fluid.

Explanation:

This problem is based on the conservation of energy and the concept of thermal equilibrium

heat= m s \Delta T


m= mass

s= specific heat

\DeltaT=change in temperature

let s1= specific heat of solid and s2= specific heat of liquid

then

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Now heat gained = heat lost

therefore,

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8 0
3 years ago
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Harlamova29_29 [7]

Answer:

It is due to the large impulse is imparted on the flour.

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So, as the flour experiences large impulse and large momentum so that the flour spreads out.

If the change in momentum is large so the flour spreads out is more.  

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3 years ago
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7 0
3 years ago
Read 2 more answers
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