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3 years ago

9

As a wave travels through a medium, it displaces particles in a direction parallel to the motion of the wave. We can conclude th

is is a

1 answer:

Gre4nikov [31]3 years ago

5 0

Transvere wave because the direction which the particles are being displaced

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What is non uniform motion?

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Explanation:

If a body does not cover a equal distance at a equal interval of time it is said to be non uniform motion...

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1 year ago

A 20.0-N weight slides down a rough inclined plane which makes an angle of 30 degree with the horizontal. The weight starts from

Ulleksa [173]

Answer:

$1270.64\ \text{J}$

Explanation:

m = Mass of object = $\dfrac{mg}{g}$

mg = Weight of object = 20 N

g = Acceleration due to gravity = $9.81\ \text{m/s}^2$

v = Final velocity = 15 m/s

u = Initial velocity = 0

d = Distance moved by the object = 150 m

$\theta$ = Angle of slope = $30^{\circ}$

f = Force of friction

fd = Work done against friction

The force balance of the system is

$\dfrac{1}{2}m(v^2-u^2)=(mg\sin\theta-f)d\\\Rightarrow \dfrac{1}{2}mv^2=mg\sin\theta d-fd\\\Rightarrow fd=mg\sin\theta d-\dfrac{1}{2}mv^2\\\Rightarrow fd=20\times \sin 30^{\circ}\times 150-\dfrac{1}{2}\times \dfrac{20}{9.81}\times 15^2\\\Rightarrow fd=1270.64\ \text{J}$

The work done against friction is $1270.64\ \text{J}$ .

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3 years ago

How does the electric force vary with distance

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All the bats living in a cave form a _____ of bats in the cave ecosystem.

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All the bats living in a cave form a __colony__of bats in the cave ecosystem.

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2 years ago