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<P>Answer:

2√2

Explanation:

Finding theta .

Tan theta = 1/√3

Theta = 30°

We KNOW

Px = p COS theta

= 4 X √3/2

= 2√3

Answer:LIMITING FRICTION is the MAXIMUM opposing force that COMES into play, when one object is just at the verge of MOVING over the surface of another object.

Explanation:

Answer:

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ANSWER:

sportsman use SHOES with spikes to reduce FRICTION

answer : option (a) 38.91m

explanation : time taken by body to reach the ground , t = √{2h/g}

here, h = 98 m , g = 9.8 m/s²

so, t = √{2 × 98/9.8} = √(20) sec

so, we have to find DISTANCE travelled by PARTICLE during (√20 -1)s to √20 s.

velocity of body at t = (√20 - 1)s

v = u + at

here, u = 0, a = -g, t = √20 - 1

so, v = -g(√20 - 1) m/s

now, displacement travelled in LAST second, s = ut + 1/2 at²

here, u = v = -g(√20 - 1) , t = 1S, a = -g

so, s = -g(√20 - 1) - g/2

= -g[√20 - 1 + 0.5 ]

= -9.8 [4.47 - 0.5 ]

= -38.91 m [ here negative sign indicates that displacement of body is in downward direction]

hence, distance travelled by it in the last second = 38.91m

Answer:

force can change the state of motion. ... Answer: When one SURFACE is moving over ANOTHER surface, a force COMES into play and opposes their relative motion. This force is called FRICTION or force of friction. Friction always opposes motion because it acts in opposite DIRECTION to motion

Answer:

• II A

• iii C

Explanation:

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Answer:

Steam released from the BOILER powers an ENGINE called a turbine, transforming HEAT energy from burning coal into mechanical energy that spins the turbine engine. The kinetic energy of the spinning turbine does work in a generator, a machine that TURNS this work into electric energy.

Explanation:

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ANSWER:

CR. 3d54s1

Explanation:

CU . 3D10 4S1

Answer:

when the electric current flows in our NERVES CALLED magnitism.

ANSWER:

Yes, friction is both GOOD and BAD which means that 'friction is a NECESSARY evil'.

SORRY DUDE but there is no QUESTION!!

So don't waste your POINTS!!

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EXPLANATION:

HOPE this HELPS you!

Answer:

yeah

Explanation:

TAKE it to kHz . there is 1000 HZ in ONE kHz

Answer:

20/√3

Explanation:

Answer:

shearing is the first STEP in PROCESSING fibre into wool. it is removal of the FLEECE of the SHEEP along with a THIN layer of the skin. ... Once, the dyeing process is complete, the fibres are straightened, combed and rolled into yarn

ANSWER:

PrashantyadavjiAce

Answer:

Steam released from the boiler powers an engine CALLED a turbine, transforming heat energy from BURNING COAL into mechanical energy that spins the turbine engine. The kinetic energy of the spinning turbine does work in a GENERATOR, a machine that turns this work into electric energy.

Explanation:

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Explanation:

Answer:

500 Hz=500 cyclessecond. or WRITTEN in an EQUIVALENT FORM: ... cycle:1500 SECOND. So the PERIOD is 1500=0.002 second.

ANSWER:

USE this EQUATION

PLZZ

Let the FIRST body is thrown with the VELOCITY U from the ground.

at maximum HEIGHT, v = 0

USING formula, v² = u² + 2as

or, 0 = u² + 2(-g) × 50

or, u² = 100g

or, u = √(100g) m/s

the 2nd body is thrown with velocity , v = 2u = 2√(100g) m/s

we have to find height reached by second body.

i.e., s = v²/2g = {2√(100g)}²/2g

= 4 × 100g/2g

= 200 m [Ans]

• Answer:
• This can cause barotrauma.
• Explanation:
• Ear barotrauma is a CONDITION that causes ear discomfort due to pressure changes.
• In each ear there is a tube that connects the middle of your ear to your throat and nose. It also helps regulate ear pressure. This tube is called the eustachian tube. When the tube is blocked, you may experience ear barotrauma.
• Occasional ear barotrauma is common, ESPECIALLY in environments where the altitude changes. While the condition isn’t harmful in some people, frequent CASES may cause further complications. It’s important to UNDERSTAND the differences between acute (occasional) and chronic (recurring) cases so you know when to SEEK medical treatment.

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ANSWER:

TIME period=time TAKEN for one complete cycle of VIBRATION to PASS a given point.

a 1/400

b1/200

c 1/100

EXPLANATION:

India (Hindi: Bhārat), officially the Republic of India (Hindi: Bhārat Gaṇarājya),[23] is a country in South Asia. It is the second-most populous country, the seventh-largest country by land area, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the ARABIAN Sea on the southwest, and the BAY of Bengal on the southeast, it shares land BORDERS with Pakistan to the west;[f] China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime BORDER with Thailand and Indonesia.

Answer:

187.5 m

Explanation:

DISTANCE covered in first 5 s

S = ut + 0.5at²

= (0 × 5) + (0.5 × 3 × 5²)

= 75/2 m

= 37.5 m

Velocity at the end of 5 s

v = u + at

= 0 m/s + (3 m/s² × 5 s)

= 15 m/s

From now, TRUCK is MOVING with a uniform velocity of 15 m/s

Distance covered in rest of the 10 s

D = SPEED × Time

= 15 m/s × 10 s

= 150 m

Total distance covered = 37.5 m + 150 m

= 187.5 m

Answer: I am UNABLE to understand your QUESTION but I have SOLVED a similar type of question. Hope you will go through the process and understand the technique to answer your question.

Explanation: I am providing a PDF solution from a question of Aakash INSTITUTE, Sorry for inconvenience, I have asked this question to the Aakash Experts Team.

ANSWER:

GRAVITY of EARTH 9.807m/s.

Radius of the earth is 6,371 KM...

Dear Student,

◆ Answer -

Difference between INDIVIDUAL INDUCTANCES = 2 H

● Explanation -

LET L1 and L2 be two individual inductors.

In series COMBINATION,

Ls = L1 + L2

L1 + L2 = 10

In parallel combination,

1/Lp = 1/L1 + 1/L2

1/2.4 = (L1 + L2) / (L1.L2)

1/2.4 = 10 / L1.L2

L1.L2 = 24

As we know,

(L1-L2)^2 = (L1+L2)^2 - 4L1.L2

(L1-L2)^2 = 10^2 - 4×24

(L1-L2)^2 =100 - 96

(L1-L2)^2 = 4

L1-L2 = 2

Therefore, difference between two inductors MUST be 2 H.

Thanks dear...

ANSWER:

24351 is CORRECT answer of this QUESTION

Answer:

12/5

Explanation:

DOT product of TWO PERPENDICULAR vectors is zero.

So,

|v1 • V2| = 0

5a - 12 = 0

5a = 12

a = 12/5

Answer:

Here's Your Answer...

Explanation:

When the sound WAVES HIT an object they produce echoes. The echo bounces off the object and returns to the bats' ears. Bats listen to the echoes to FIGURE out where the object is, how big it is, and its SHAPE. Using echolocation, bats can detect objects as THIN as a human hair in complete darkness.

Hydrogen like atoms which have only ONE electron on orbit

Ex: H, He+, LI2+ , etc.

ANSWER:

fufu jvjcu d,tzmvcu JCU gckvjd jdvhdi hiwkv jdbdi jshdu jdhud i

ANSWER:

EXPLANATION:

SRY QUESTION is not so CLEAR

ANSWER:

then the LOUDNESS INCREASES 9 TIMES

ANSWER:

Coulomb's law STATES that: The magnitude of the electrostatic force of attraction or repulsion between TWO point charges is directly PROPORTIONAL to the PRODUCT of the magnitudes of charges and inversely proportional to the square of the distance between them.

HOPE this answer will HELP please like and MARK as a BRAINLIEST.

ANSWER:

sdsdsdsdsdsdsdsddwewewewewe

Explanation:

wewwqdfdsfwe4t43wr44e4545r45rewfdew3r

Answer:

average velocity =DISPLACEMENT / CHANGE time

ANSWER:

EXPLANATION:

HOPE it will HELP you.

Answer:

TIME = 2root2sec , Range = 40m

Explanation:

HOPE it will HELP you.

Answer:

CHANGE in the velocity of the CAR = 10√2 m/s

Explanation:

If the EAST direction is ALONG x-axis and the North direction is along y-axis then

INITIAL Velocity of the car =

Final velocity of the car =

Change in velocity

= Final Velocity - Initial Velocity

=

=

Magnitude of the velocity = 10√2 m/s

Direction of the velocity = 135° from the East diretcion

Hope this helps.

ANSWER:

distance=total LENGTH covered

displacement=shortest length between POINTS

Answer:

Copper and ALUMINIUM METAL are used for making CONNECTING WIRES . Copper and Aluminium has high melting POINT and can be drawn into wires that is it is ductile. ... Fuse wire should have appropriate melting point . It protects the appliances when larger current flows through the fuse which is more than its rating.

Explanation:

Gravity or GRAVITATION, is a NATURAL phenomenon by which all THINGS ... The EARLIEST instance of gravity in the Universe, possibly in the form of QUANTUM gravity, ...

1st solar plate is FOND on terres the large ray of sun comeing on solar plate so this ray is REFLECTED from solar plate . hence we get so MUCH of energy from solar plate. solar PLATES natural energy .

BUOYANT FORCE depend on DEPTH of liquid i.e DIRECTLY proportional

and acceleration due to GRAVITY

Solution :

Initial VELOCITY, u = 80 ft/sec

Height, h = 96 ft

ACCELERATION DUE to gravity, g = 32 ft/sec^2

Now, Using 2nd Equation of motion,

h = ut + 1/2 gt^2

96 = 80 t - 1/2 ( 32 )t^2 [ - sign for above the ground ]

96 = 80T - 16 t^2

t^2 - 5t + 6 = 0

t^2 - 3t - 2T + 6 = 0

t ( t - 3 ) - 2( t - 3 ) = 0

( t - 2 ) ( t - 3) = 0

t = 2, 3

Hence , Ball will be at a height of 96 ft after 2.0 and 3.0 seconds.

Option ( A ).

EXPLANATION:

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Given:

A body is THROWN vertically up with the velocity of 100m/s and another one is thrown 4sec after the first one with same velocity.

To find:

After how much time does the bodies meet ?

Calculation:

• 1st body reaches a POSITION after (t+4)sec.

• 2ND body reaches the same position after being thrown after 4 sec, so it's time is t sec.

For 1st body:

For 2nd body:

EQUATING the two EQUATIONS:

So, bodies meet after (8 + 4) = 12 sec.

EXPLANATION:

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THANK you.