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AnnZ [28]
3 years ago
11

An electroscope is a simple device consisting of a metal ball that is attached by a conductor to two thin leaves of metal foil p

rotected from air disturbance in a jar. When the ball is touched by a charged body, the leaves that normally hang straight down, spread apart. Why?
Physics
1 answer:
GREYUIT [131]3 years ago
6 0

Answer:

When the same charge spreads in the foil of the electroscope then there is a repulsion between the similarly charged foil.

Explanation:

An electroscope is a device which has metallic foil inside a sealed glass flask preventing in form external environmental disturbances. There is a ball connected to the foil via a conductor.

When the ball is touched by a charged body then the charge is conducted from the body to the ball via conductor to the foils of the electroscope. When the same charge spreads in the foil of the electroscope then there is a repulsion between the similarly charged foil.

When the charge is supplied to any metallic body then it spreads over the surface of the metal so as to minimize the force of repulsion between the similar charges.

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Answer:

D

Explanation:

7 0
3 years ago
if somebody swim to the right for 30 meters then swims to left for 15 meters and then swims back to the right for 50 meters what
zubka84 [21]

50m

Explanation:

Displacement is the length of path traveled which is measured from start to the finishing of the path.

    Analysis of the journey;

 Starts from:

 0                                    30m                                              from right

                  15m                                                                       to left

                                                                       50m              to right

                 

The displacement is 50m from the starting point.

Distance is total path traveled and for this problem it is 30+ 15 + 50 = 95m

learn more:

displacement brainly.com/question/5461768

#learnwithBrainly

8 0
3 years ago
What is a rock that is full of tiny connected air spaces
Reptile [31]
The preamble rock is filled with air spaces


7 0
3 years ago
When measuring accelerations with three different graphs (x-t, v-t, a-t) which gives the most reliable results and why?
kipiarov [429]

Answer:

the best graph to find the acceleration is v-t since calculating the slope averages the different experimental errors.

Explanation:

The different graphics depending on time give various information, let's examine what we can get from some

Graph of x -t. from this graph we can obtain the speed through the slope, but the acceleration is not directly obtainable

v-t chart. We can get the acceleration not through the slope and the distance traveled by the area under the curve. Obtaining acceleration is very accurate since it is an average that avoids possible errors in measurements. This is the best graph to find the acceleration

Graph of a-t In this graph the acceleration is a point on the Y axis, it gives some errors because it depends strongly on the possible experimental errors.

In conclusion, the best graph to find the acceleration is v-t since calculating the slope averages the different experimental errors.

5 0
3 years ago
In a semiclassical model of the hydrogen atom, the electron orbits the proton at a distance of 0.053 nm. part a what is the elec
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3 years ago
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