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marin [14]
3 years ago
13

A(n) is a line in which waves that are moving together are all in the same phase.

Physics
1 answer:
Ksivusya [100]3 years ago
5 0
The line in which waves that are moving together are all in the same phase is referred to as the wave front. 
For example, in a series of waves, all of the crests that are in a single line make up a single wave front. This is the case for every set of particles at the same specific point in a series of waves.
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If a statue is made out of wood, which of these words correctly describes the statue?
bonufazy [111]

Answer:

Od- Wooden

Explanation:

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2 years ago
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4 years ago
A dynamite blast at a quarry launches a rock straight upward, and 1.7 s later it is rising at a rate of 17 m/s. Assuming air res
Shtirlitz [24]

Answer:

(a) v_0= 34m/s

(b) v=14m/s

Explanation:

We can derive the initial speed of the rock from the equation of the speed in function of the time:

v=v_0-gt\\\\\implies v_0=v+gt

Using the given values for the speed at time t=1.7s, we get:

v_0=17m/s+(9.8m/s^{2})(1.7s)=34m/s

In words, the speed of the rock at launch is 34m/s (a).

Next, we use this to calculate the speed at t=4.9s:

v=v_0-gt\\\\v= 34m/s-(9.8m/s^{2})(4.9s)=-14m/s

This means that the speed of the rock at 4.9s after the launch is 14m/s (b), and the negative sign means that it is moving downwards.

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3 years ago
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A U-boat was a german submarine
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