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andriy [413]
2 years ago
9

Jenna made an electric circuit as seen in the picture. She placed a thermometer near her light bulb. After the light bulb was tu

rned on for an hour, what did she MOST LIKELY observe?
Physics
2 answers:
lisov135 [29]2 years ago
8 0
The thermometer had most likely gotten a very high number on it from the heat of the light bulb. The longer he light bulb was on, the higher the number went on the thermometer.
madreJ [45]2 years ago
7 0

Explanation:

When thermometer was placed near the light bulb then there will be transfer of heat in the form of light energy.

Light traveled through the space and therefore, it transmitted its energy in the form to heat to the bulb of thermometer.

As a result, the bulb of thermometer will become warm and thus, it will show an increase in temperature.

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When two objects collide their momentum after the collision is explained by what?
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A large in-falling fragment could be tracked using radar. Explain how distance, speed, and the direction of motion, of the fragm
ch4aika [34]

Answer:

speed, distance  and direction of motion of the object can be determined by analyzing the radio wave.

Explanation:

We know that radar operates by transmitting radio waves to a destination and these waves are comes back to the receiver station. By Considering this transmission and receiver process, we can measure the distance, velocity and path of an object's movement.

Distance can be assessed by taking following consideration,  the velocity of the waves is V. It can help to assess the time made for the waves to be emitted by the radar and felt by the receiver, let the time be t.

Therefore  distance can be determine as D= v*t/2,

here 2 signifies that the distance travelled by the wave in either direction ( from transmitter to receiver and vice verse)

Using the source wave frequency, speed can be computed. In a specific frequency, the radar starts sending out the frequencies and the reflected wave will have a distinct frequency. The velocity can be determine by

v= (\Delta f/f)(c/2),

where\Delta fis the change in frequency and

c is the speed of light (the wave).

Direction can be determine by applying above principle. change in frequency is used to determine the direction in the following way:

When the frequency transition is very low, the object moves away from the radar and vice verse.

3 0
3 years ago
The diameter of Circle A is _________. EF AG EG FG
Bond [772]

Answer:

The diameter is EF

Explanation:

Given

Circle A (See attachment)

Required

Determine the line that represents the diameter

First, it should be noted that the diameter of a circle is always a straight line.

From the attachment, the circle has the following straight lines:

  • E F
  • E A
  • A G
  • A F

It should also be noted that the diameter passes through the center of a circle and divides it into two congruent parts.

From the list of straight lines above, only line EF satisfy this property

Hence, the diameter of the circle is line EF.

6 0
3 years ago
Read 2 more answers
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