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3 years ago

11

The angular quantities L, omega, and alpha are vectors. The vectors point along the axis of rotation with a direction determined

by __________.

1 answer:

astra-53 [7]3 years ago

4 0

Answer:

Angular momentum and angular velocity have both magnitude and direction and, therefore, are vector quantities.

Explanation:

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3 years ago

Convert 27,549 into scientific notation

dezoksy [38]

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3 years ago

If eight water waves pass an ocean buoy each minute, and successive wave crests are 20 m apart, find the wave speed:____________

Llana [10]

Answer:

The wave speed is calculated below:

Explanation:

Given,

number of waves passed per minute = 8

time period = 1 minute = 60 s

distance between successive wave crests = 20 m

waves passing interval per second = $\frac{8}{60}$ $s^{-1}$

Now,

wave speed = 20 m × $\frac{8}{60}$ $s^{-1}$

= $\frac{8}3}$ m/s

= 2.67 m/s

Hence the wave speed is 2.67 m/s.

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3 years ago

if you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves

vladimir1956 [14]

Answer:

When light enters from air to water i.e. it is moving from rarer to denser medium, it changes its original path as there is a change of speed of light and deflects itself towards the normal. This is known as the refraction of light and this is why a pencil in a cup of water looks as if it is broken and larger.

Explanation:

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3 years ago