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A SPHERICAL SHELL made of plastic, CONTAINS a CHARGE Q distributed UNIFORMLY over its surface. ... What is the electric field inside a uniformly charged non-conducting spherical shell? Why is the electric field inside a uniformly charged spherical shell zero?.

In SPECIAL relativity, an object that has NONZERO rest mass cannot travel at the speed of light. As the object APPROACHES the speed of light, the object's energy and momentum INCREASE without bound. ... In other words, the relativistic mass is the proportionality CONSTANT between the velocity and the momentum.

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Two USES of cyclotron is :-

➡ cyclotron is USED in PROTON THERAPY to treat CANCER......

➡ cyclotron is used to penetrate the body....

Here is UR ANSWER...........

POINT passing through rim:USING parallel AXIS theorem:

=(MR^2)/4 + MR^2

=(5MR^2)/4

Is it 50M...............

displacement is the shortest distance which is calculated by taking the VELOCITY with which the body has completed the shortest PATH......

displacement = velocity×time

displacement = 5×10= 50m

velocity of 5m/s is considered because the shortest distance between FINAL and initial point is AE.
Velocity graph for AE represents a velocity of 5 m/s in total time 10s.....

so displacement = 5×10 =50m
...

I can't EXPLAIN.. EXTREMELY SORRY

Yeah sure for your help

__________________________________________________________________________________

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Here is your answer which you are searching for

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Electricity chapter of class 10 th firstly I want to INTRODUCE you about commonly asked Questions

- Problems are asked based on the formulas
- Uses of current and other components
- Definition
- Circuit diagram ( drawing and labelling)

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Some EXAMPLES of that type of question are the following :-

Question 1 :- What is electrical restivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammenter reacts 5A. The reading of the ammemter decreases to half when the length of the wire is doubled. Why?

Question 2:- A piece of wire is redrawn by pulling it, until it's length is trebled. Compare the new resistance of wire with the original resistance?

Question 3:- Should the resistance of an ammeter be low or high? Give reason

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© For answer of this questions refer to the following 3attachments with my answer

_______________________________________________________________________________

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ANSWER
_____________________________

Maximum Resistance is obtained in Series Circuit.

Max R = 1/4 + 1/4 + 1/4 ....... ( 10 TIMES )

Max R = 10 × 1/4 = 5/2

= 2.5 ohm

_____________________________

Minimum resistance can be obtained by Parallel Circuit.

Minimum R = 1/R = 4 + 4 + 4 ..... ( 10 Times )

1/R = 40

=> R = 1/40

=> 0.025 ohm
_____________________________

HOPE IT HELPS :):):):)

I THINK OPTION 3 is CORRECT..here is the EXPLANATION.

Since, 4 mol of HCL is present in 1000 ml of solution,
Moles of HCl in 50 ml of 4 M HCl = 
4 mol/1000 ml×50 ml =0.2 mol

Chemical REACTION:   Fe + 2HCl  ----->  FeCl2 + H2

Since, 2 mol or 73 g of HCl is needed to produce 1 mol of Fe2+ ion
So, 0.2 mol of HCl will GIVE = (1/2) x 0.2 = 0.1 mol of Fe2+ ion.

Do you WANT the ANS in GRAPH PAPER RIGHT

Application of refraction of light is a tool which helps us in understanding the basic concepts about the refraction of light and its application. First of all LET us understand the basics of refraction of light and then we will study about application of refraction of light.

Generally refraction of light occurs when the waves travel s from one medium to another medium, with some refractive index and it generally enters other medium at oblique angle. There are various phenomenon’s associated with the refraction. Refraction of light has a major SCOPE in case of optics and in the field of technology. For example, lens uses the basics of refraction of light to form an image of an object for various purposes, such as magnification. The other example is prism which also uses refraction to form a spectrum or band of colors from incident ray of light. In optical illusion and mirage, refraction generally plays a big role.

Various scientific things have been explained with the help of refraction. Day to day phenomenon’s are also explained with the help of refraction. One example which we are most familiar is ‘Twinkling of stars’. This phenomenon is explained in this WAY. The atmosphere which is BLANKET of earth actually consists of various layers of varying densities. It is because of change in temperature and pressure. The phenomenon is when the ray o f light enters into the layers of continuously increasing densities they are being refracted because of change in medium. In this complete process, ray of light follows curve path and hence it reaches to us. But because of the wind and currents, the density of the layer continuously increases and hence in turn the density of each layer goes on changing from layer to layer. And because of this at very small interval of time, the position of the image of start keeps on changing, and hence it ultimately produces the twinkle effect. This is all BASED on the concepts of refraction.

The same principle can be used to explain the apparent sunrise or sunset. The basic concepts of refraction are used to describe the complete process. The other applications of refraction are as follows:

1) Spear fishing, in which spear fisherman use a smart trick to catch the prey. The spear fisherman generally aims at a point below where the fish seems to be. This is because light actually changes its direction from one medium to another of different densities. This change is basically known as refraction.

2) Bending of stick in water. In water, a stick engrossed in water generally appears bent and small when viewed at an angle from above. This is also because the rays of light actually travel from water medium to air medium and hence in bend away from the normal at the surface.

3) A coin appears raised in water. The same explanation exists.

From above discussion we have seen that refraction of light has been used to understand the scientific facts in almost all fields. This is all about application of refraction of light

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AND ANSWER to my comment

M=5kg a=f/m
F2=64+36=100
F=10 a=10/5=2m/sec2

The ANS is I'll NOTE MATHS 5-2.5

V = 2 + 4 COS 60
V = 2+2
V = 4
A = v÷ t
A= 4 ÷ 2 = 2

Hey friend here is your ANSWER

Instead of BOOKS I suggest placement WEBSITES

HOPE it helps you.

The GRADIENT of a DISTANCE-time graph represents the speed of an OBJECT. Thevelocity of an object is its speed in a particular direction. The slope on a velocity-time graph represents the acceleration of an object. The distance TRAVELLED is equal to the area under a velocity-time graph.

In UCM WORK done is ALWAYS zero ...
Hope it HELPS you ...

BODY of WEIGHT is more in EARTH GRAVITY because there is VALUE of earth gravity

firstly, while ATTEMPTING QUESTIONS in physics or in any subject , TRY to find out the data that is given .

In this case , we have been given

u = 0 m/s ( starting from rest )

v = 18 KMPH , converting it into m/s we multiply it by 5/18 we get 5m/s

t = 2 sec.

now it has asked for average acceleration i.e. EQUAL to (v-u)/(t2-t1 )

putting in the values you get ( 5 - 0)/(2-0) = 5/2=2.5 m/s^2

I hope it helped .

So,

If we equate the FORCE we would arrive at the equation,

F - F(friction) = ma

F= 1000N

F(friction) = 10N

Now,

1000 - 10 =ma

990 = ma

Now,

To FIND the value of a we use the principles of kinematics,

We know that,

v² = u² +2as

10² = 1² +2×a×4

100 - 1 = 2×a×4

8a = 99

a= 99/8

Substituting in the above equation,

990 = m × (99/8)

m= 10× 8

m= 80kg

SO,

The mass of the object is 80 kg

Here is your answer.
initial VELOCITY= 10/3m/s
acceleration=2/3m/s²
distance=8m

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A kangaroo Can jump 2.5m vertically. What MUST be initial velocity of kangaroo.
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Report by Nkishor34 04.07.2017
Answers

BRAINLYY
BRAINLYY Ace
Using third EQUATION of motion,
v^2 = u^2 + 2as
v is equal to zero since velocity at highest POINT = 0

0 = u^2 + 2 ( - 9.8 ) × 2.5
0 = u^2 - 49
u^2 = 49
u = √49
u = 7 m/sec

ANSWER = 7 m/sec



Hope it's HELPFUL

Ans.
1008.33j
As, H=i2RT

The ANSWER is A-3Bt^-4. HOPE it HELPS.

SINCE the wire of resistance R is BROKEN into 4 EQUAL parts, the resistance of each PART would be R/4.

The mitochondrion (plural mitochondria) is adouble membrane-bound organellefound in alleukaryotic organisms. Some CELLS in some multicellular organisms may however lack them (for example, mature mammalian red bloodcells). A number of unicellular organisms,such as microsporidia, parabasalids, and diplomonads, have also reduced or transformed their mitochondria into other structures.[1] To date, only one eukaryote, Monocercomonoides,is known to have completely lost its mitochondria. The WORD mitochondrion COMES from the Greek "granule" or"grain-like". Mitochondria generate most of the cell's supply ofadenosine triphosphate (ATP), used as a source of chemical energy.

The most prominent roles of mitochondria are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration, and to regulate CELLULAR metabolism. The central set of reactions involved in ATP production are collectively known as the citric acid cycle, or the Krebs cycle. However, the mitochondrion has many other functions in addition to the production of ATP.


I hope it's helpful for you....

When you swing a hammer you INCREASE its kinetic energy, so that by the time it STRIKE the nail it IMPARTS a large FORCE which drives the nail into the wood.
the hammer is basically an energy reservoir to which you are adding energy during swing.

Power is the capacity of energy, which is being used. ... While energy is 'joules', power is 'joules per SECOND'. WELL, in another WORDS Power is 'watt' and Energy is 'watt-hour'. Anotherdifference is that energy can be STORED whereas power cannot be stored.

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Hey friend here is ur answer

That STEAM can then be USED to turn a turbine and generate ELECTRICITY. The steam could also be used to poweranother mechanical PROCESS within the factory or to pre-heat water so less energy would be required from other RESOURCES to heat the water to the required temperature.

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Weightlessness occurs when you do not feel the floor. To make this clear, we will use "APPARENT WEIGHT".

Suppose you are in an accelerating elevator and there is conveniently a weighing scale.

Naturally, when the elevator starts accelerating, you get onto the scale and READ you weight. But since the elevator is accelerating, you are ACTUALLY reading your apparent weight.

Note that by Newton's third law, your apparent weight is the normal FORCE on you. So when the elevator goes into free fall, you "lose contact" with the scale. When you read the scale, the apparent weight you read is 0, which obviously means that you are weightless.

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It is so because neutrons possess nocharge. The principle of cyclotron is to HOLD a particle to a SPIRAL TRAJECTORY by a static magnetic field and accelerated by a rapidly VARYING electric field. ...Cyclotron can accelerate charges particles and Neutron is uncharged.

Hey Here is Your answer =>

1. Electricity is being wasted when it is converted into thermal energy
SPECIFY OBJECTIVE INCLUDE =>>
#. Identify the technology available for conservation of waste heat of electricity and produces the SUMMARY for revelent Technology.
#. Characterize the most common waste heat.
#. COMPLETE the various evaluations for the various heat source to define the economic project.

#. Use of the energy in thermal POWER plants.
#. Use the waste heat energy in our daily activities REQUIRING for electricity.
#. The waste heat that is also used in nuclear reactors.

V = u + at

s = ut + (1/2) AT2

v2 = U2 + 2as

Vertical velocity become ZERO so the NET velocity [email PROTECTED] @=alpha

A is the RIGHT ANSWER

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