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Ilia_Sergeevich [38]
2 years ago
14

What are the control variables in your investigation ?

Physics
2 answers:
adoni [48]2 years ago
8 0
It is type car and same person
Ivan2 years ago
3 0

Answer:

Height of the ramp, Distance Car traveled and type of toy car.

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A loop of wire is in a magnetic field such that its axis is parallel with the field direction. Which of the following would resu
ahrayia [7]

Answer:

All the given options will result in an induced emf in the loop.

Explanation:

The induced emf in a conductor is directly proportional to the rate of change of flux.

emf = -\frac{d \phi}{dt} \\\\where;\\\\\phi \ is \ magnetic \ flux\\\\\phi = BA\ cos \theta

where;

A is the area of the loop

B is the strength of the magnetic field

θ is the angle between the loop and the magnetic field

<em>Considering option </em><em>A</em>, moving the loop outside the magnetic field will change the strength of the magnetic field and consequently result in an induced emf.

<em>Considering option </em><em>B</em>, a change in diameter of the loop, will cause a change in the magnetic flux and in turn result in an induced emf.

Option C has a similar effect with option A, thus both will result in an induced emf.

Finally, <em>considering option</em> D, spinning the loop such that its axis does not consistently line up with the magnetic field direction will<em> </em>change the angle<em> </em>between the loop and the magnetic field. This effect will also result in an induced emf.

Therefore, all the given options will result in an induced emf in the loop.

4 0
3 years ago
Which medium will light travel through slowest? <br> 1.Solid<br> 2.Gas<br> 3.Empty Space
Allushta [10]

It will travel slowest through gases.

6 0
2 years ago
Compared to the atoms in a room-temperature banana, the atoms in a frozen banana have _____ kinetic energy.
Tju [1.3M]
The answer is b. more
3 0
3 years ago
Why in the absence of air do all objects fall at the same rate?
geniusboy [140]

Answer:

objects falling at same rate.

Explanation:

ifif you neglect air resistance, objects following your Earth's surface or with the same approximate acceleration 9.8 meters per second squared (9.8 m/s^2, or g) due to Earth's gravity.

4 0
2 years ago
How do day and night at Uranus equator change as Uranus revolves around the sun
stich3 [128]
They don't because there to big to fit inside me
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2 years ago
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