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EXPLANATION:

ALSO CONSTANT as E=V/r.

Explanation:

10 CM...........

..................

Answer:

when live wire COMES in CONTACT with the neutral wire SHORT circuit occurs and HENCE overloading of current occurs which INCREASE the current

Answer:

In physics,MOTION is the change in POSITION of an object with respect to its SURROUNDINGS in a GIVEN interval of TIME.

velocity TIME GRAPH:

When we plot a graph between velocity and time then its SLOPE GIVES us acceleration and find slope is constant then its acceleration is zero

ANSWER:

it is DISPLACEMENT per unit time

it is a vector QUALITY

Answer:

98.6 farienheit

Explanation:

ANSWER:

The NEW resistance would be 8 ohms, because resistance is directly PROPORTIONAL to the LENGTH

Explanation:

there are two more States of matter FIRST is PLASMA and SECOND is Bose EINSTEIN condensate

Answer:

GO to bicyle

Explanation:

STORE and REPLACE it NAD enjoy it

ANSWER:

translucent ones ALLOW partial light to pass, WHEREAS opaque ones allow no light to pass through.

EXPLANATION:

if there is no heat FLOW between two body then those two BODIES are SAID to be at thermal equilibrium

Answer:

37 DEGREES CELSIUS is the EQUIVALENT of 98.6 degrees FAHRENHEIT

VELOCITY is the VECTOR QUANTITY having DIRECTION and MAGNITUDE.

Answer:

This is DUE to an INCREASE in hydrostatic pressure, the force per UNIT area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the WATER pushing down on you. For every 33 feet (10.06 meters) you go down, the pressure increases by 14.5 psi .

Explanation:

EXPLANATION:

let us DRAW the figure for the path trasversed :- see the FIG

let DISPLACEMENT= ā

a²=(OS')² + (ss')²

os'=NE=4m

and ss'=SE-ES'=>SE-ON=(6-4)m=2m

:.a=√(4²+2²) =√20m

Distance:

1.The distance travelled by a moving BODY is the actual length of the path covered by the body IRRESPECTIVE of direction.

2.Distance is a scalar quantity.

3.Distance travelled is ALWAYS positive.

4.Distance is always greater than or equal to displacement.

Displacement:

1.The displacement of a body is the shortest distance between the initial and FINAL position of the body.

2.Displacement is a vector quantity.

3.Displacement  MAY be positive,negative or zero.

4.Displacement is always less than or equal to the distance travelled.

Answer:

The angle should be 0°.

Explanation:

LET A and B be TWO vectors such that A and b have DIFFERENT magnitude but are in equal direction or parallel to each other then the angle between them is 0°.

And we know that Resultants of two vectors is given by :-

where is angle between two vectors.

We know that cos 0° = 1 is maximum on all cos angle.

Therefore, The resultants of two vectors is maximum when the angle between them is 0.

or,

Either they are parallel to each other.

Here is Your ANSWER

Chack Attechment

Hope it Heplfull Answer

ANSWER:

Height :- 120.05 m

Time:- 4.9 sec

Explanation: using eq. V2= U2+2as

V=0

Or H= 120.05

For TYM using eq v= u+at

Or t =4.9

in physics the term light sometimes refers to ELECTROMAGNETIC and particle LIKE nature of light is known as the wave -particle DUALITY. The STUDY of light ,known as optics,is an important RESEARCH area in modern physics.

ANS 18) (a) ACCELERATION from A to B= 25km/h

(b) acceleration from B to C = 5km/h

Answer:

The resistivity of conductors increases with rise in temperature. As the temperature of the CONDUCTOR increases, the average SPEED of the electrons acting as the current carriers increases. This in RESULT increases the NUMBER of collisions and the average TIME of collisions decreases with temperature.

Solution :-

Given :-

Initial Velocity = 18 km/h or

= 18 × 5/18

= 5 m/s

Acceleration = 2 m/s²

TIME = 5 sec

Now we have to Solve this :-

We have GOT the initial velocity ,time and acceleration

So we can use the motion equation

v = u + at

→ v = 5 + 2(5)

→ v = 5 + 10

→ v = 15 m/s

Now EITHER velocity = 15 m/s or

= 15 × 18/5

= 54 km/h

So velocity

Or

ANSWER:

EMAX at x=R/root2

in both POSITIVE and NEGATIVE VALUE

Answer:

The FUSES WORK on the principle of the heating effect of the current. ... Fuse is ALWAYS connected in series with the electrical circuit. When the EXCESSIVE current or heat is generated due to heavy current flows in the circuit, the fuse melts down due to the low melting point of the element and it opens the circuit.

Explanation:

ANSWER:

EXPLANATION:mascular FORCE

ANSWER:

the answer is 2nd one if u want explanation u can SEE the pics

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Answer:

2T-COS(4T)/4+C

Answer:

Pressure—the effect of a force applied to a surface—is a derived unit, obtained from combining base units. The unit of pressure in the SI system is the pascal (Pa), defined as a force of one NEWTON per square METER. The conversion between atm, Pa, and TORR is as follows: 1 atm = 101325 Pa = 760 torr.

Explanation:

answer : OPTION (4) 4m/s

explanation : Acceleration varies with velocity as , a = 2/v m/s² ......(1)

we know, acceleration is the RATE of change of velocity. so, a = ∆v/∆t

and instantaneous acceleration, a = dv/dt , use this APPLICATION in above expression (1) .

a = dv/dt = 2/v

or,

or,

given, initial velocity of train , u = 2m/s

and we have to find velocity after time t = 3s

or,

or,

or,

or, ⇒v = 4m/s

hence, option (4) is correct choice .

When a body is moving along a CIRCULAR PATH,it is said to be a circular motion.Rotatory motion occurs when a body is rotating on its own axis.When a body like giant wheel ROTATES,the SEATS in the giant wheel is in a circular motion.

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ANSWER:

Innertia HELPS a body to RESIST a CHANGE in its MOTION.

Temperature is a measurement of the average kinetic energy of the molecules in an OBJECT or a system. Kinetic energy is the energy that an object has because of its MOTION. The molecules in a substance have a range of kinetic energies because they don't all move at the same speed. As a subtance absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.

The Kelvin temperature scale has a true zero with no negative temperatures. Zero Kelvin is called absolute zero. It's the lowest temperature theoretically obtainable, and is the temperature at which the particles in a PERFECT crystal would become motionless.

Solids, liquids and gases all have temperature. The particles within a solid aren't moving around, but they have vibrational motion. As the molecules of a solid vibrate faster their temperature increases. The melting point of a solid is the temperature at which the vibrational motion overcomes the forces of attraction holding the molecules in a solid formation

Explanation:

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EXPLANATION:

If you RUB your hands together for several SECONDS, you'll notice that your hands feel WARM. That warmth is caused by a force called friction. ... Friction happens when youovercome the resistance of ONE objectrubbing against the other.

ANSWER: v=4m/s

Explanation:

EXPLANATION:

h=10.2m

t=10/2=5s

g=10m/s^2.

u=?

h=ut-1/2*gt^2

10.2=5u-1/2*10*25

10.2+125=5u

135.2/5=u

u=27m/s

Answer:

Given,

Length = 2m

Area of cross section = 10^-6 sq. m

Resistivity = 1.7 × 10^-8ohm.m

Now, R = p×l/A

R =( 1.7 × 10^-8) × 2/10^-6

R = 3.4 × 10^-8/ 10^-6

R = 3.4 × 10 ^-8-(-6)

R = 3.4 × 10^-8+6

R = 3.4 × 10^-2

R = 0.034 OHM.

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for average VELOCITY :- (USING formula)

2v1v2/(v1+v2)= 48

=V1 = 60

ANSWER:

50cm SECOND is the answer of physics

Explanation:

i THOUGHT you are in 9 CLASS

ACCELERATION means the CHANGE in the final velocity and INITIAL velocity of an object

ANSWER:

HELLO Dear User__________

Here is Your Answer...!!

____________________

STEP by step solution:

HOPE it is clear to you.

ANSWER:

HEY MATE,

Your answer is ununderstable

Hey DEAR,

● Answer -

Combined length = 4.1±0.3 m

◆ Explanation -

# Given -

a = 1.8 m

∆a = 0.2 m

b = 2.3 m

∆b = 0.1 m

# Solution -

Mean combined length of two rods is given by -

x = a + b

x = 1.8 + 2.3

x = 4.1 m

Mean absolute ERROR of two rods is given by -

∆x = ∆a + ∆b

∆x = 0.2 + 0.1

∆x = 0.3 m

Error limits are CALCULATED by -

x - ∆x = 4.1 - 0.3 = 3.8 m

x + ∆x = 4.1 + 0.3 = 4.4 m

Therefore, combined LENTH of two rods wipp be 4.1±0.3 m with error limits 3.8 m to 4.4 m.

Thanks for asking..

Answer:

5√3

Explanation:

we KNOW when MAGNITUDE of both VECTORS are EQUAL then:

r=2acos O/2

= 2.5.cos 60/2

= 10.√3/2

=5√3(ANS)

Answer:

the magnitude of the electric field (E) produced by a POINT CHARGE with a charge of magnitude Q, at a point a DISTANCE r away from the point charge, is given by the equation E = kQ/r2, where k is a constant with a VALUE of 8.99 x 109 N m2/C2.

ANSWER:

Because in pointed nails, the surface area is low, so the pressure exerted is HIGH. So with a less FORCE, the nails can GO inside, whereas blunt knife has a greater surface area, so the pressure which is NEEDED is more.

here is ur ANSWER .

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the average SPEED of an object is defined as the distance TRAVELLED divided by the TIME elapsed .VELOCITY is a vector quantity and average .velocity can be defined as the displacement divided by the time .