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ANSWER:

Can you EXPLAIN the QUESTION CLEARLY PLEASE

HORIZONTAL distance covered by ball =nb

Vertical distance covered by ball =nh

If the time taken to HIT the edge of nth STEP is t, then

nb=ut

nh=12gt2

Eliminating t, we GET,

nh=12g(nbu)2

n=2hu2gb2

Same as EXAMPLE

Answer:

Explanation:

no body excutes the free OSCILLATIONS since the AMPLITUDE of the oscillating body gradually decreases and ultimately the body stops at its mean position . This is because the air resistance and the force of friction at the point of suspension always act on the oscillating body which oppose the MOTION of the body whether the body is receding from the mean position or it is approaching the mean position. Such FORCES are called the DAMPING forces.

Answer:

1.rhizobium

2.lactoclbacillus

3.yeast

4.ades

5.vibrio CHOLERA

i GAVE you the easiest WAY to solve the QUESTION WITHOUT lamis theorem this question cannot be done TRY and try......

ANSWER:

in first half

d=50km

s=30kmph

TIME=(50/30)hr=1.66hr

Explanation:

total DIST

=100km

and ave speed

=45kmph=(total dist)/(total time)

=100/t

so

t=100/45

=2.22hr

which means

second LEG of 50km

was DONE in 2.22-1.66

=0.56 hr

so speed was

50/0.56

=89.28 kmph ANSWER

ANSWER:

the distance travelled by the BODY will be the circumference of the CIRCLE .we can find the speed of the body by the FORMULA ,

speed is equal to distance upon time where speed is equal to s .

distance is equal to circumference of circle that is equal to C .

the time will be equal to time TAKEN by body to travel the distance=t

Answer:

GAIR is cycle for LIVING BEINGS

Hope helps you to UNDERSTAND PROPERLY bye

ANSWER:

• average SPEED - TOTAL DISTANCE by total time

Explanation:

36 by 30 1.2

Answer:

Ways to increase emf in a.c. GENERATOR:

Decrease DISTANCE between magnet and coil. (To increase magnetic field strength experienced by coil)

USE a STRONGER magnet.

Increase frequency of rotation of the coil. (Double freq. = double max. ...

Increase number of turns in the coil. (Double no. of turns = double max e.m.f.)

Answer:

Sound energy is produced when an OBJECT vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as AIR, water, WOOD or metal. Sound energy is a form of mechanical energy. Sound waves are able to vibrate the diaphragm INSIDE our EARS .

Explanation:

SHIFTING CULTIVATION is an agricultural system in which a person USES a piece of land, only to abandon or alter the initial use a SHORT time later.

hope it helps you

Answer:

The PERMITTIVITY is a MEASURE of how WELL a MEDIUM stores ELECTRIC energy. It has units of Farads per meter (F/m).

EXPLANATION:

PERSON person will EXPERIENCE WEIGHTLESSNESS

Explanation:

If a BODY moves with uniform velocity, its acceleration is zero m/s^2. ... When MAGNITUDE (SPEED) and direction of velocity both remain constant, then we call it as uniform velocity or constant velocity. Such MOTION is called uniform motion.

Answer:

Newton's second law of motion can be formally stated as FOLLOWS: The acceleration of an OBJECT as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and INVERSELY proportional to the MASS of the object.

ANSWER:

The RELATIVE VELOCITY is the velocity that the BODY A would appear to an obesver on the body B and vice versa .

CHANGE in K.E is EQUAL to wd by all force ....

k2-kq=wd

1/2mv²=mgRcosQ

take theta tha is GIVEN ......

Answer:

2.5 m/s

Explanation:

Displacement of car = Shortest distance between initial and FINAL POSITION

= 90 m - 40 m

= 50 m

Average VELOCITY = Total displacement / Total TIME

= (50 m) / (20 s)

= 2.5 m/s

ANSWER:

REST

Motion

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Answer:

B STAR has large parallax angle

Explanation:

• because we know that we know that because we know that x is equal to 2 by 3 so theta is equal to R by radius SHOW the whenever there is arc which is

Answer:

Uniform LINEAR motion is a motion with a constant velocity,whereas uniform circular motion is the motion with a constant speed. uniform circular motion where a centripetal acceleration ALWAYS ACTS TOWARDS the centre and always perpendicular to the velocity of the object.

ANSWER:

PLZ REFER to ATTACHMENT

Hello

here is your answer

DESCRIBE an experiment to demonstrate electromagnetic induction. ... When a magnet is pushed into the solenoid, there is a change in magnetic FIELD lines LINKING the solenoid, which produces an induced e.m.f. This induced e.m.f. drives a current in the CIRCUIT, CAUSING the pointer of the galvanometer deflects momentarily.

Brainliest plz ☺️

Answer:

The ACTUAL length or the SIZE of the magnet is called the geometric length.

Explanation:

In a bar magnet the POLES of the magnet are situated a little distance inside the ends of the magnet. The distance between these two poles (north and SOUTH) is KNOWN as magnetic length.

Hope It helps you

Our Earth's magnetic FIELD is believed to be generated from its DEEP down core. The Coriolis force. resulting from earth's spinning also causes swirling whirlpools.

This FLOW of liquid ions generates electric currents which in turn produce magnetic FIELDS.

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Answer:

If you see from the LOWER block FRAME of reference. A PSEUDO force 'ma' ACTS on the block.

This 'ma' acts backwards and compresses spring by 'x'

Under MAXIMUM compression the forces are balanced

kx = ma

Therefore

x = ma/k

Max compression = ma/k

ANSWER:

YES

Explanation:

cause it doesn't FACE the sun

Answer:

The answer is 7.82 X 10^3 m/s.

Explanation:

The initial VELOCITY of the rocket V0 = 0

Velocity of the rocket after exhaustion of the forst stage is  

          V = μ ln m0 / m

Here,  

m0 = 100 + 10 + 800 +90 = 1000 KG

m =  100 + 10 + 90 = 200 Kg

Thus |V| = 2 ln 5

             = 2 x 1.609

             = 3.218 Km/s

The second stage becomes operative when the first is DETACHED from it.

    μ0 = 3.218 Km/s

    m0 = 10 + 90 = 100 Kg

    m = 10 Kg

Thus, |V| = 3.22 + 2ln (100 /10)

              = 3.22 + 2 X (2.3)

              = 7.82 X 10^3 m/s

estimate pressure of air MOLECULES at 273 K , if mean square speed is 500m2/s2 and DENSITY of air is 6 kg/m3

solution : we know from kinetic THEORY of gases, square mean root velocity of gas ,

given, mean square , = 500m²/s²

taking square root of it to get rms velocity.

i.e.,

density , ρ = 6 kg/m³

so, 10√5 = √{3P/6 }

SQUARING both SIDES,

500 = 3P/6

or, 500 × 6/3 = P

or, P = 1000 N/m²

hence, pressure of air molecule is 1000 N/m² or Pascal.

Kinetic Energy:

The energy possessed by an OBJECT due to its motion is called as kinetic Energy.

Derivation:

Let us consider an object of mass " m " which is at rest on smooth horizontal plane.

Let a Force , F acts on the object and let the object from rest moves from point A to point B and COVERS a displacement S.

The WORK Done by Force on the object is :

Workdone = Force x displacement.

W= FXS ____(1).

From third equation of motion;

V^2 -U^2 =2aS

S= V^2 -U^2/2a ______(2)

By Newtons SECOND law of motion:

F= ma

From equation 1 and 2

W= m*a* (V^2- U^2)/2a

As we have ASSUMED object is at rest, u=0

W=m*V^2/2

The WORK Done appears as kinetic energy of the body.

Therefore,

K.E = (1/2 )mv^2

By performing an activity:

1. Take a SPRING balance and hang to horizontal rod.

2. take a light STRING for which the breaking strength to be found.

3. one end of the string is attached to the spring balance and the other end is attached to a weight HANGER.

4. Put some small weights like 50gms on the weight hanger and NOTE the readings of the spring balance.

5. Now add little weight to the hanger and note the readings of the spring balance.

6. Do the same until the string is broken.

7. Note the reading of the balance when string is broken.

8. The reading gives the limiting force that can be born by thread

The moisture content at which the drying RATE ceases to be CONSTANT is known as the critical moisture content. During the constant rate period, the moisture from interior MIGRATES to the SURFACE by various means and is vapourised. As the moisture content is lowered, the rate of migration to the surface is lowered.

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The amount of heat produced in a wire depends on its material, length and THICKNESS. Thus, for different requirements, the wires of different materials and different lengths and thicknesses are used

The wires used for MAKING electric circuits do not normally become HOT. On the other hand, the elements of some electric appliances become so hot that they are easily VISIBLE. The filament of an electric bulb gets heated to such a high temperature that it starts glowing.

If a large current passes through a wire, the wire may become so hot that it may EVEN melt and break.

The plumbing system SHALL be PROVIDED with a system of vent piping that will PERMIT the ADMISSION or emission of air so that the seal of any fixture trap shall not be subjected to a PNEUMATIC pressure differential of more than 1 inch of water column. Every trap and trapped fixture shall be vented. All fixtures discharging downstream from a water closet shall be individually vented except as provided in section 911.

POTENTIOMETER wire can be made more SENSITIVE by increasing the length of the wire or say increasing the potential gradient. Therefore the potentiometer wire of length 8m is more sensitive than COMMONLY USED 4m length potentiometer.

Diamond has more refractive index than glass,its refractive index is 2.54 whereas refractive index of glass is 1.5 only. When LIGHT enters it , and incidents one of its side at CRITICAL angle , then it reflects it back into the same medium ,this phenomenon of reflecting back light in same medium is CALLED Total internal reflection, this happens many TIMES leading to its shining whereas Total internal reflection doesnot TAKES place in glass due to less refractive index.

Explanation:

1 ZERO ID the ANSWER is the CORRECT

Answer:

The blackbody spectrum always becomes SMALL at the left-hand side (the short wavelength, high frequency side). The explanation of classical physics: Light is an electromagnetic wave that is PRODUCED when an electric CHARGE vibrates. ... In a hot object, electrons vibrate in RANDOM directions and produce light as a RESULT.

ANSWER:

OERSTED DISCOVERED that in 1820

Issue related to mobility and disability INCREASES with passing age. Assistive devices like crutches, walkers and canes help in enhancing the support base of the patient, enhance balance, as well as increase mobility and independence,

Crutches are beneficial for people who are suffering from lifelong or permanent disabilities. A few orthopedic surgeons even PRESCRIBE this device for patients with short-term requirements. Crutches have been found to be highly USEFUL for those who require to use their arms to bear weight and thrust and not solely for balance.

Different crutches require a varying amount of strength in shoulders and arms and energy expenditure, that can make them INAPPROPRIATE for weak older adults. As the strength and need of every person can be different, so it makes it beneficial to COMPARE and evaluate different crutches on the basis of their features and find the one that suits you.

ANSWER:

W will HELP you...

POST the QUESTIONS

Answer:

The correct answer will be option D.  As the answer is 10√3 m/s

Explanation:

According to the problem the mass of the BLOCK is 10 kg  which is pulled in a vertical plane wit a force ALONG an arc.

According to the figure the initial position of the block is A and we re applying F force to  pull it to B

The block is moving as the force is PASSING energy to the block which is equal to its work done

W = force X displacement

Now displacement means the shortest PATH. Now from

As the two arm has the same length of R

Therefore

Therefore the displacement will be R

Therefore the work done at point A

W = 200  x 10 = 2000 Joule

Now it is the kinetic energy

Then,

2000 = 1/2 mv^2 + (mg(R-Rcos60°)

=> 2000 = 1/2 10 x v^2 + (10 x 10 (10(1-1/2)))

=> v = 10√3 m/s

MERE to yeh ANSWER AA rahe H

Hey!!

Mate I THINK this question can solve LIKE this

y]=L, unit=meter

[t]=T, unit=meter

[l]=L, unit=meter

y=a-BT+cx

[y]=[a]

[a]=L

[y]=[bt]

[b]=L/T

[y]=[cx]

[c]=L/L

therefore cis dimension less.

I hope it helps you

Answer:

as none of the valus are given , we will take the variable VALUES

a = g

u = 0   [ as body is falling freely ]

H = 1/2gt²      [ by substituting the values of u , a in the equation of motion ]

here , S = H = h

velocity at reaching the GROUND is given by,

V = gt       [ by substituting the values of u , a ]

t = V / g

hope it helped and PLEASEEE mark as brainliest:)

ANSWER: RECTANGULAR hyperbola

Explanation:

Answer:

ENERGY OBTAINED FROM COMBUSTION AS GOOD SOURCE(THERMAL RADIATION)

For a good source of energy it should have a tendancy to give most of it WITHOUT giving out residue. Such as natural gas(basically methane about 75%) .

It should be more economically feasible, should be found in large quantities,easy to transport. For example charcoal, fossil fuels (but nowadays they limited due to irresposibleness).

It should have high calorific value. It should also obtained on earth in form free state(helps to extract them).It should not produces harmful air pollutants and should not produce more amount of greenhouse gases.

ENERGY OBTAINED FROM NATURALLY OCCURRING INCIDENTS IN NATURE.(BY CONVERTING INTO USEFUL SOURCE OF ENERGY AS A GOOD SOURCE OF ENERGY.

It should be a inexhaustible source of energy.The spot of harnessing should be found in large quantities. It should be technologically possible to harness the energy and economically feasible.

For example Wind, Solar,Geothermal,Tidal, hydro-power dams energy.

ENERGY OBTAINED FROM RADIOACTIVE ELEMENTS OR NUCLEAR ENERGY.

These are obtained from radioactive elements such as URANIUM ,Thorium,Plotonium etc.

They are good source of energy because they are required in little amount but gives out energy in

ENORMOUS amount. They are obtained basically from atomic fission and fusion but COST of providing a system to harness them is extremely expensive.

THINGS THAT COULD REVOLUNISE THIS WHOLE WORLD BUT STILL FAR TO PRONE FROM REALITY.

Such as using energy of thunderbolts, Converting infrared radiation into electricity.

ANSWER:

RIGHT................

ANSWER:

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