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dolphi86 [110]
3 years ago
13

The electroscope is an apparatus used to detect electric charge. The electroscope consists of a plate, a support and a free to r

otate needle all made of metal. After rubbing a balloon on your sleeve, the balloon is brought near to the metallic plate of an electroscope. As a result, the needle of the electroscope deflects. The sign of the electric charge on the needle of the electroscope is:
Neutral
Positive
Negative
Cannot tell without knowing the type of metal.
Physics
1 answer:
Marat540 [252]3 years ago
4 0

Answer:

Positive

Explanation:

The leaves will diverge further: The positive charge on the leaves has increased further. This occurs when positive charge is produced on the leaves by the charged object. This is quite possible only when the object is positively charged.

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Which element has the fewest valence electrons?
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Answer

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Explanation:

8 0
3 years ago
A car travels along a straight line at a constant speed of 53.0 mi/h for a distance d and then another distance d in the same di
Shalnov [3]

A distance of d is covered with 53 mile/hr initially. Time taken to cover this distance t1 = d/53 hour Next distance of d is covered with x mile hours. Time taken to cover this distance t2 = d/x hours. We have average speed = 26.5 mile / hour          

                                         = Total distance traveled/ total time taken                  

                                         = \frac{2d}{\frac{d}{53}+\frac{d}{x}} = \frac{2}{\frac{1}{53}+\frac{1}{x} }  = \frac{106x}{x+53}

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5 0
3 years ago
Igneous rocks weather more easily than sedimentary rocks.
IrinaK [193]

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False because igneous rocks are formed from a volcano and sedimentary never move they stay in one spot

7 0
3 years ago
Which of the following is NOT one of the four elements of emotion?
Nezavi [6.7K]

Answer:

Attention

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Hello there, fellow peer! The answer to question is attention. Let's say someone is the control. The behavioral expression is an element of expression, so the control will feel emotions. Subjective Experience is when someone felt the way you feel and they are trying to help you. That is a type of emotion which can lead to empathy for you. This is also not the answer. Physiological Arousal is also not the answer because this is when you can feel what someone else is feeling and you try to give them therapy.

Using the process of elimination, our answer is therefore attention.

4 0
3 years ago
. A person weighing 750 N gets on an elevator.
Kobotan [32]

 

F = 750 N  (Force)

d = 10 m  (displacement )

t = 25 s   (time)

L = ?   (Mechanical work )  =  (Energy)

P = ?   (Power)

Solve:

L = F × d = 750 × 10 = 7500 Joules

P = L / t = 7500 / 25 = 300 Watts

5 0
3 years ago
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