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3 years ago

Which of the following is a result of the transfer of energy?

2 answers:

7 0

OPTION C) MAGNETISM IS THE RIGHT ANSWER....

Explanation:

MAGNETISM IS TRANSFER THE ENERGYS. BECAUSE IN THE CHOOSE IT OTHER OPTION ARE NOT HAVE ANY ENERGY. SO MAGNETISM IS THE RIGHT ANSWER....

HOPE IT HELP.....✌✌✌

Lostsunrise [7]3 years ago

3 0

Answer: Sound

Explanation: it's asking which of the following is a result of transfer of energy and sound comes from vibrations

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3 years ago

Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100.0 m ea

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Answer:

6.5 m/s

Explanation:

We are given that

Distance, s=100 m

Initial speed, u=1.4 m/s

Acceleration, $a=0.20 m/s^2$

We have to find the final velocity at the end of the 100.0 m.

We know that

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$v^2-(1.4)^2=2\times 0.20\times 100$

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$v^2=40+1.96$

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3 years ago

A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of 1210 Hz. What frequency (in H

IRINA_888 [86]

Answer:

The frequency of sound heard by the boy is 1181 Hz.

Explanation:

Given that,

Frequency of sound from alarm $f_{0} = 1210\ Hz$

Speed = -8.25 m/s

Negative sign show the boy riding away from the car

Speed of sound = 343

We need to calculate the heard frequency

Using formula of frequency

$f = f_{0}(\dfrac{v+v_{0}}{v-v_{s}})$

Where, $f_{0}$ = frequency of source

$v_{0}$ = speed of observer

$v_{s}$ = speed of source

$v$ = speed of sound

Put the value into the formula

$f=1210\times\dfrac{343+(-8.25)}{343-0}$

here, source is at rest

$f=1180.8\ Hz$

$f=1181\ Hz$

Hence, The frequency of sound heard by the boy is 1181 Hz.

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3 years ago

Which of the following is a result of the transfer of energy￼?

Which of the following is a result of the transfer of energy?