1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
raketka [301]
4 years ago
7

Although one can electrify a glass rod by rubbing it with silk, no net charge is created.

Physics
2 answers:
aliya0001 [1]4 years ago
8 0

Answer:True

Explanation:

When we rub a glass rod with silk cloth electrons of glass rod are stripped away by the silk cloth making glass rod Positively charged  i.e. relatively glass rod has more positive charge than negative charge.

During this Process no charge is created but transfer of the charges makes the rod relatively Positive and silk cloth relatively negative.

Thus net charge is same and no new charge is created.      

Veseljchak [2.6K]4 years ago
7 0

Answer:

Explanation:

It is true.

As we rub the glass rod with the silk cloth, due to the friction, the electrons are transferred from glass rod to the silk cloth, which makes the glass rod becomes positively charged and silk cloth becomes negatively charged.

The number of electrons lost by the glass rod is equal to the number of electrons gained by the silk cloth, so the net charge is zero.

You might be interested in
a stone is thrown vertically upwards with a velocity of 20 m per second determine the total time of flight of stone in air​
miv72 [106K]

Answer:

Explanation:

The best way to do this is to remember the rule about the halfway mark in a parabolic path. At a trajectory's half way point in its travels, it will be at its max height. To get the total time in the air, we take that time at half way and double it. Here's what we know that we are told:

initial velocity is 20 m/s

Here's what we know that we are NOT told:

a = -9.8 m/s/s and

final velocity is 0 at an object's max height in parabolic motion.

We will use the equation:

v=v_0+at where v is final velocity and v0 is initial velocity. Filling in:

0 = 20 + (-9.8)t and

-20 = -9.8t so

t = 2 seconds. The stone reaches its max height 2 seconds after it is thrown; that means that after another 2 seconds it will be on the ground. Total air time is 4 seconds.

8 0
3 years ago
In a laboratory, you determine that the density of a certain solid is 5.23×10−6kg/mm3. Convert this density into kilograms per c
kiruha [24]

Answer:

5.23\cdot 10^3 kg/m^3

Explanation:

The density of the solid is

d = 5.23\cdot 10^{-6}kg/mm^3

we want to convert it into kg/m^3. We must note that:

1 m^3 = 1 m \cdot 1 m \cdot \1m =1000 mm\cdot 1000 mm \cdot 1000 mm=1\cdot 10^9 mm^3

Therefore, the conversion can be done as follows:

d=5.23\cdot 10^{-6} \frac{kg}{mm^3} \cdot (1\cdot 10^9 \frac{mm^3}{m^3}) =5.23\cdot 10^3 kg/m^3

8 0
3 years ago
If there is a gravitational force between all objects, why do we not feel or observe it?
Dmitry [639]
We do not feel the gravitational forces from objects other than the Earth because they are weak.
4 0
3 years ago
Read 2 more answers
Two uniform solid spheres, A and B have the same mass. The radius of sphere B is twice that of sphere A. The axis of rotation pa
Svetach [21]

Answer:

Sphere B has 4 times more inertia than sphere A.

Explanation:

Inertia on a Solid sphere is given by:

I = 2/5*M*R^2

For this problem:

ma = mb = M

Rb = 2*Ra

With these values:

Ia = 2/5*M*Ra^2

Ib = 2/5*M*(2*Ra)^2 = 4* (2/5*M*Ra^2)

As you can see, Ib = 4 * Ia.

4 0
3 years ago
1. Your friend is bragging about his motorcycle. He claims that it can go from a stopped position to 50 miles per hour in three
german
He is describing the motorcycle's acceleration.  <span />
7 0
3 years ago
Other questions:
  • When the steel ball drops on the constant velocity cart, it follows a ____ path in the frame of reference fixed to the ____, but
    11·1 answer
  • Suppose that at room temperature, a certain aluminum bar is 1.0000 m long. The bar gets longer when its temperature is raised. T
    9·1 answer
  • We tend to feel less _____ when more people are around to help out. compassionate conformity responsible no answer is correct
    10·1 answer
  • A bullet is fired straight up from a gun with a
    14·2 answers
  • A pulley system has an efficiency of 74.2%. If you perform 200 J of work, how
    5·1 answer
  • Which is an example of velocity?
    14·2 answers
  • You visit the Grand Canyon on a particularly hot day, and like all good tourists, you yell "Hello!". Would you expect to hear th
    15·1 answer
  • Pls help! <br> What is movement of energy from one system to another also known as?
    11·1 answer
  • What is the volume of an object with a mass of 15 grams and a density<br> of 2 g/ml
    7·1 answer
  • The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!