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3 years ago

A certain oscillator satisfies the equation of motion Initially the particle is at

Physics

1 answer:

Flura [38]3 years ago

7 0

Answer:

in simple harmonic motion, the formula for finding amplitude is:

a = -ω^2 x

where, a=amplitude, ω= angular frequency, x= Displacement

Explanation:

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Why is the reflection of a wave at a free boundary different from reflection at a fixed boundary??

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Here is the main thing is medium. In the free boundary wave face the air medium, but in a fixed boundary wave face different medium. The change of medium effect on the change of the reflection of wave.

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3 years ago

If you take a bar magnet with both n & s poles and cut it in half, you get

creativ13 [48]

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3 years ago

1.After striking the ball, it is important to ______.

egoroff_w [7]

Answer:

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Explanation:

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3 years ago

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We wish to obtain a equal sized inverted image of a candel flame on a screen kept at a distance of 4m from the candle flame a) n

soldier1979 [14.2K]

A) To obtain an inverted image of an object of same size a convex lens is used.

In this question we have given

Distance between candle flame and screen=4

it means distance between candle flame and lens +distance between lens and screen =4m

u+v= 4m

u= v

therefore, 2u= 4m

or, u=-2m ( u is taken negative because it lies on left side of the lens)

and v=2m

we have to find the focal length of convex lens

$\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$ $\frac{1}{f} = \frac{1}{2} - ( - \frac{1}{2} ) \\ \frac{1}{f} = \frac{1}{1}\\ f = 1m$

Hence, Focal length of the lens is 1m

and lens should be placed at a distance of 2m from the flame

4 0

3 years ago

A motorboat heads due east at 16 m/s across a river that flows due south at 9.0 m/s. a.) What is the resultant velocity of the b

alukav5142 [94]

Answer:

a)V=18.35 m/s (South -East)

b) t =7.41 m/s

c)D= 66.70 m

Explanation:

Given that

Velocity of boat in east direction = 16 m/s

Velocity of river = 9 m/s

a)The resultant velocity V

$V=\sqrt{16^2+9^2}\ m/s$

V=18.35 m/s (South -East)

We know that

Distance = Velocity x time

Lets t time takes to cross the river

136 = 18.35 x t

t =7.41 m/s

The distance covered downstream

We know that

Distance = Velocity x time

t= 7.41 s

D= 7.41 x 9 m

D= 66.70 m

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3 years ago