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rjkz [21]
3 years ago
13

Please help 25 points!

Physics
2 answers:
cricket20 [7]3 years ago
8 0
<h3>2 Answers:</h3>

a) Velocity is a vector quantity

e) Velocity is a speed with direction

=================================================

Explanation:

If we know the velocity of an object, then we know how fast it's going (speed) and where it's going (direction). It is a vector because the direction of the vector determines the direction, and the length of the vector (aka magnitude) determines the speed. So in a sense we've built in two facts of data into one visual.

An example of velocity: 10 miles per hour north. Here we have the speed of 10 mph and the direction north.

-------------------

Extra info:

  • Choice B contradicts choice A, so we can cross choice B off the list.
  • Choice C is false because speed is a scalar, or single quantity, and not a vector. As mentioned earlier, speed is a part of velocity, but they aren't the same exact thing.
  • Choice D is false because the velocity does not account for net force. We don't have any force information built into the velocity.
Karo-lina-s [1.5K]3 years ago
5 0

<em>a. Velocity is a vector quantity. </em>

b.Velocity is a scalar quantity.  NOT

c. Velocity is the same thing as speed. NOT

d.Velocity is speed with net force.  NOT

<em>e. Velocity is speed with direction.</em>

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<h3><u>Answer;</u></h3>

D) Standing wave

<h3><u>Explanation;</u></h3>
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  • A standing wave pattern is a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source.
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