Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

❤️❤️The ENERGY in a wave is DETERMINED by two variables. One is amplitude, which is the distance from the rest position of a wave to the top or bottom. Large amplitude waves contain more energy. The other is frequency, which is the NUMBER of waves that PASS by each second.❤️❤️

Explanation:

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Explanation:

KIRCHHOFF's Law describes the enthalpy of a REACTION's variation with temperature changes. In GENERAL, enthalpy of any substance increases with temperature, which means both the PRODUCTS and the REACTANTS' enthalpies increase.

hope it helps

Answer:

concave mirror is used as reflector.

it is real view of mirror in VEHICLES. driver use convex mirror as REAR view mirror because a convex diverse the incident beam LIGHT and always from virtual and usually small and erect IMAGE between the pole and focus. also convex mirror provide a wider FIELD of view.

A COMMUTATOR is a rotary electrical switch in certain types of electric motors and electrical generators that PERIODICALLY reverses the current direction between the rotor and the external circuit. ... By reversing the current direction in the ROTATING WINDINGS each half turn, a steady rotating force (TORQUE) is produced.

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Explanation:

REFLECTION is the BOUNCING BACK of light.

We are able to see an object because it EMITS or REFLECT light. In this case, the picture reflect light

→ The transfer of pollen GRAINS from the anther to the STIGMA is called pollination.

It is of two types :

SELF pollination : The transfer poem grains from the anther of flower to the stigma of same flower or of another flower born on same plant is called self pollination.

Cross pollination : The transfer of pollen grains from one plant to the stigma of flower of another plant is called cross pollination.

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ACID are substances which are sour in taste and have H+ ions.

Example, Hydrochloric acid, Citric acid

Bases are substances which are BITTER in taste and have OH- ions. Example, Caustic Soda, Sodium Bicarbonate.

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...HOPE it HELPS....

Answer:

1N = 10 POWER 5 PASCAL's

Explanation:

10000= 10 power 4 / 10 power

10 power -1 =0.1 NEWTON

the two magnets tend to move TOWARDS each

but this wont HAPPEN in HORSESHOE MAGNET

Answer:

A conical PENDULUM is a mass ATTACHED to a NEARLY mass-less string that is held at the OPPOSITE end and swung in horizontal circles. It doesn't take much effort to KEEP the mass moving at a constant angular velocity at a constant radius.

Answer:

because as the temperature increases it's kinetic energy increase and intermolecular space BECOMES larger and intermolecular force of attraction starts decreasing, THUS, the MOLECULES START moving randomly and therefore the substance starts expand on heating

Answer:

our body PH value range from 7.0 to 7.8 the ph value of rain water is below 5.6 it leads to acid rain and this acid flows into the RIVER it will lead to reducing the ph value of river water thus aquatic life is being distroyed

soil is acidic we have to make it neutralise by calcium oxide ;slaked lime ; calcium carbonate or chalk powder

toooth decay is due to ph value is LOWER than 5.5 tooth enamel is made up of calcium phosphate it doesnt dissolve in water but get corroded thus ph value is that 5.5

causes :the bacteria produce acid in our mouth

prevention : brush our teeth daily.. use tooth PASTE

Answer:

No, that's completely incorrect

Explanation:

WELL your friend / student is partially correct because a THERMOMETER do check it's on temp , let me explain you with an example:

consider a weighing machine, the basic mechanism of weighing machine is that it READS the external FORCE applied on it (not mass) so it shows the reading of the external force. Just like that thermometer the thermometer contains Hg (mercury) so the Kinetic ENERGY of the molecules increases when the external temperature is increased thus we see the mercury particle.

Due to INERTIA OF REST

when carpet is beaten with STICK, it comes time n MOTION but the DUST PARTICLES (not in direct contact of stick) due to inertia of rest resists itself to be in motion and as a result......dust comes out of the carpet

Answer:

MAINLY we can say length,weight, pressure, VELOCITY,speed,TIME, temperature, amount of substance, LUMINOUS INTENSITY,and so...on

Answer:

Earthquakes are USUALLY caused when rock UNDERGROUND suddenly breaks along a fault. This sudden RELEASE of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little.

ANSWER:

given

force is EQUAL to 100 Newton

MASS is equal to 7 kg

Explanation:

then force is equal to mass into acceleration

A=F/M

100/7 ×55

=500 N

1) A BULLET SHOT from a gun

2) Collision of two BODIES

→ The TRANSFER of pollen grains from the anther to the stigma is called pollination.

It is of TWO types :

SELF pollination : The transfer poem grains from the anther of FLOWER to the stigma of same flower or of another flower born on same plant is called self pollination.

Cross pollination : The transfer of pollen grains from ONE plant to the stigma of flower of another plant is called cross pollination.

__________________________❤️"

total total internal reflection is directly related to the BRILLIANCE of the DIAMOND.

this happens because that diamonds are cut into the shape so that the sides of the diamond or the edges of the diamond makes the angle less than the critical angle in the diamond.

as we know the critical angle is the angle at which when the incident LIGHT is put the angle of reflection will always be 90 degree. as a result of which the angle less than 90 degree would lead to the the internal reflection or or not letting the light cross the medium.

as this happens the light entering the diamond suffers continual total internal reflection as a result of which it appears much brighter.

hence we can conclude that there is a direct RELATION between the brilliance of diamond and the total internal reflection

Thermal energy means the two substances should be exchanging no heat energy, or their TEMPERATURE should be the same.

HOT water has thermal energy, but COLD water doesn't have thermal energy. So, in ORDER to be in thermal equilibrium, it is the hot water which should be added first, as it'll TRANSFER it's thermal energy to the added cold water and after some time it reaches an equilibrium state.

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CASE (i) : force applied on 15 kg mass , F = mg = 15kg × 9.8 m/s² = 147 N [ vertically downward ]

DISPLACEMENT of mass , s = 2m [ horizontally west direction ]

so, angle between force and displacement vector, Φ = 90°

we know,

work DONE = F.scosΦ

= 147 × 2 × cos90° = 0

case (ii) : force applied on mass, F = TENSION in rope = WEIGHT of body = mg

= 147 N [ horizontally west direction ]

displacement , s = 2m [ horizontally west direction ]

so, angle between F and s , Φ = 0°

so, work done = F.scosΦ

= 147 × 2 × 1 = 294 J

hence, in case (ii), more work is done.

ANSWER:

PLEASE PROVIDE FULL QUESTION

→ The transfer of pollen grains from the anther to the STIGMA is called pollination.

It is of two TYPES :

Self pollination : The transfer poem grains from the anther of flower to the stigma of same flower or of another flower born on same PLANT is called self pollination.

CROSS pollination : The transfer of pollen grains from one plant to the stigma of flower of another plant is called cross pollination.

__________________________❤️"

ANSWER:

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Explanation:

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ANSWER:

Explanation:

the distance is ie. s = 500 m

Taking u = 0 m because the object is dropped and not thrown and g = 10 m/s^-2 it is along the direction of GRAVITATIONAL acc.

Now , APPLYING the values in the eq,

s = ut + 1/2 at^2

500 = 0 + 1/2*10*t^2

t=10 s

v = final - initial POSITION / final t - initial t

= 500/10 m/s

=50 m/s

A person is moving circle of radius r with constant speed. the CHANGE in velocity in m from a and b is 2v sin 40

SIMPLE HARMONIC MOTION

ANSWER:

When a mass undergoesSimple HARMONIC Motion,there is always a constant ratio between it's displacement and acceleration. Since a = -w^2 x where w is the angular frequency of the particle. and THUS,displacement/acceleration = 1/w^2 which is a constant ratio for EVERY changingdisplacement too !!

ANSWER:

Dont KNOW bro SORRY

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Explanation:

Answer:

34 J

Explanation:

It's NECESSARY to MAKE a COLLAB with DUPATTA and SUNSET

Answer:

In short brakes are a TOOL that TURN kinetic ENERGY into heat

. This is accomplished by applyingfriction in one way or another. In the case of disk brakesfriction is CREATED because the braking mechanism exerts AFORCE on the break pads which pushes them into contact with disk.

Answer:bar bar padal marlo

Explanation:

RACING bicycle wheels are thin and smooth for smooth, FAST travel. They also cut down on friction so the bicycle moves faster. The handlebars are CURLED so the CYCLIST can lean forward to reduce friction from the wind.

ANSWER:

We WANT PROPER question can U PLEASE say the proper question

ANSWER:

no PROBLEM answer not SORRY

ANSWER:

the GROOVES DECREASES the FRICTION

ANSWER:

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Displacement of body =0

Average velocity of body=0

As body returned back to its INITIAL position so displacement and average velocity is 0

ANSWER:

in an EQUATION the DIMENSIONS of EVERY QUANTITY is same.

ANSWER:

s it is USED in the NUCLEAR REACTOR.....

ANSWER:

the RAY will BEND AWAY from the NORMAL...

→ The transfer of POLLEN grains from the ANTHER to the stigma is called pollination.

It is of two types :

SELF pollination : The transfer poem grains from the anther of flower to the stigma of same flower or of another flower BORN on same plant is called self pollination.

CROSS pollination : The transfer of pollen grains from one plant to the stigma of flower of another plant is called cross pollination.

__________________________❤️"

Answer:

let the velocity of the particle before explosion be v

so at highest position the velocity of particle will v cos a

the case is something as shown above in the picture:-

as one particle RETRACES the PATH so

V2= v cos a

so conservation of momentum:-

m X v cos a= m/2 X v2 - m/2 X v cos a

3/2 X m X v cos a=m/2 X v2

so

by the solving the equation:-

v2=3 v cos a

ANSWER:

Actually, NG = 3/2 and nw = 4/3. Absolute Refractive Index of a medium = Speed of light in VACUUM/Speed of light in the medium Speed of light in glass = 2 X 108 m/s Speed of Light in Vacuum = (3/2) x 2 x 108 m/s = 3 x 108 m/s Speed of light in water = (3 x 108 m/s)/(4/3) = 2.25 x 108 m/s

K = ½mv2 denive the formUKla

ANSWER:

he FOUNDATION of the building is GENERALLY built wider and broader as compared to its walls so that the building does not sink into the ground and is also capable to handle the pressure of the entire building. With the wide base as the foundation, large BUILDINGS can PREVENT high pressure.

ANSWER:

the CORRECT answer is -24 JOULES

ANSWER:-

• The TEMPERATURE of a system in thermal equilibrium with another system made up of ice and water at 1 ATM of pressure is either 0 degrees Celsius or 273 Kelvin. A substance's temperature INCREASES as a direct result of KINETIC energy being added to the particles of the substance.

I am SORRY it's not a PHYSICS QUESTION

Answer:

Since a larger area of the surface contains larger surface energy, external forces must PERFORM positive work against internal surface forces to INCREASE the total area of the surface. Mathematically, the internal surface forces are represented by surface tension, defined as the normal FORCE per unit of LENGTH.