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aliya0001 [1]
2 years ago
15

How can you use a simple model to describe a wave and its features?

Physics
1 answer:
Volgvan2 years ago
8 0

Answer:

Explanation:

Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave. Patterns can be used to identify cause and effect relationships.

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What must the diver's minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, wh
Dafna1 [17]

Answer:

1.08 m/s

Explanation:

This can be solved with two steps, first we need to find the time taken to fall 9.5 m, then we can divide the horizontal distance covered with time taken to calculate the velocity.

Time taken to fall 9.5 m

vertical acceleration = a = 9.8 m/s^2.

vertical velocity = 0, (since there is only horizontal component for velocity, )

distance traveled  s = 9.5 m.

Substituting these values in the equation

s= u \timest+0.5at^{2}

t= \sqrt{\frac{2s}{g} }

t=\sqrt{\frac{2\times9.5}{9.8} }

⇒ t= 1.392 sec

Velocity needed

We know the time taken (1.392 s) to travel 1.5 m,

So velocity = 1.5 m / 1.392 s = 1.08 m/s

hence velocity of the diver must be at least 1.08 m/s

4 0
3 years ago
What is the terminal velocity of a penny falls off a skyscraper
Naya [18.7K]
The penny will reach terminal velocity at 50 ft. Then it will travel 25 mph till it reaches ground.
7 0
3 years ago
What role does the somatic nervous system play?
kodGreya [7K]

Explanation:

The somatic nervous system coordinates the voluntary control of movement in the body system.

The nervous system is made up of the central nervous system and peripheral nervous system.

The peripheral nervous system is made up of the nerves that branches into the body from the spinal cord.

  • It consist of the somatic nervous system and the autonomous nervous system.
  • The somatic nervous system controls the voluntary actions of movement in the body.
  • It coordinates the reflex arc.

Learn more:

Nervous system brainly.com/question/4662759

#learnwithBrainly

4 0
3 years ago
What is a penalty stroke in field hockey?
Paha777 [63]

Answer: D

Explanation: Because the orginal Penalty stroke is Today's field hockey topic is the exciting penalty stroke! What is a stroke? A penalty stroke occurs when an intentional foul happens in the penalty circle (the circle around the goal), the foul prevents a scoring of a opportunity.

4 0
2 years ago
Read 2 more answers
I only need help on #15! Thanks!
Vanyuwa [196]

I would have to say that 'B' and 'D' are both correct.

Increasing the voltage that you're using to operate a circuit
causes the current in the circuit to increase.  But current is
just the number of electrons that are flowing through it.  So
right there, you have the increase in the number of charges.

Now, every electron that flows through the circuit gives up
some energy on the way.  So if there are more electrons
making the trip, then more energy has been put into the circuit.

Jessica, I absolutely love your printing.
I wish I could print so clearly.


7 0
3 years ago
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