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200% ....................

A+B= i2+j2

Explanation:

A=i+j

B=i_j

A+B= (i+j)+(i_j)

=(i2_ij)+(ji_j2)

A+B=i2+j2

A stone is tied to the end of a string and swung with constant speed around a horizontal circle with a radius of 1.5m . If it MAKE two COMPLETE revolution each second, the MEGNETUDE of acceleration is

Explanation:

Itz MR Nobody

CHAPTER NAME...........

ong>Answer:

DERIVATION. Or, L = [M1 L0 T0] × [M0 L1 T-1] = [M1 L1 T-1]. Therefore, linear momentum is dimensionally represented as [M1 L1 T-1].

ong>Answer:

Static FRICTION may be LESS, equal or greater than kinetic friction

Explanation:

COZ it's a FACT

ong>ANSWER:

The answer is 1124864

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ong>ANSWER:

a .true

b true

c. true

d. true

e.false

ong>Answer:

Accleration = 1m/s^2

Distance covered = 100 m

Explanation:

U = 5m/s

V = 15m/s

t = 10s

We know , v = u + at

15 = 5 + a × 10

15-5 = 10a

a = 1m/s^2

Now , v^2 - u^2 = 2as

200 = 2s

s = 200÷2

s = 100M

ong>Answer:

2.70 m/s

Explanation:

a = total d/total TIME

200+300+150/100+90+50

650/240

= 2.70m/s

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Explanation:

Image of an object placed at CENTER of CURVATURE is inverted, REAL and of the same SIZE and is formed at the center of curvature. HENCE image will be real and at the center of curvature

ong>Answer:

UNIFORM CIRCULAR motion is a type of motion in which a body MOVES uniformly (with CONSTANT SPEED) in a circular path

ong>Answer:

hii

Explanation:

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pa or Pascal itself is an unit.

Pressure is MEASURED as Pascal (Pa) in SI system

and is measured as Barye (Ba) in CGS system.

ong>Answer:

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EXPLANATION:

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

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c is the answer

Explanation:

Because as per the formula

momentum =mass * velocity

p=mv

=65*2

=130KG m/sec

ong>EXPLANATION:

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ong>Answer:

distance = rate x time. To SOLVE for SPEED or rate use the formula for speed, s = d/t which means speed EQUALS distance DIVIDED by time.

Explanation:

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long form of periodic table consist of vertical COLUMNS called groups and horizontal ROWS called periods. Elements are arranged in the increasing ORDER of ATOMIC numbers. Elements in the modern periodic table are arranged in 7 periods and 18 groups. ... The third period contains elements from Sodium to Argon.

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Components of an electrical CIRCUIT or electronic circuit can be connected in series, PARALLEL, or series-parallel. ... In a series circuit, the current that flows through each of the components is the same, and the voltage across the circuit is the sum of the individual voltage drops across each component

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CHRISTIAAN HUYGENS was wright answer

Here V = Potential difference between two points P and Q = 10-(-4)= 14 V

C = 100 × 1.6 ×10^-19

So J = V ×C

J = 14 × 1.6 × 10^-17

J = 22.4 ×10^-17 joules

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Explanation:

ong>Answer:

At the highest point of the path the particle has only horizontal component of velocity which is constant hence speed is MINIMUM. ALSO at the highest point POTENTIAL energy is maximum, so the kinetic energy will be minimum.

Explanation:

A PROJECTILE, in other words, travels the farthest when it is launched at an angle of 45 degrees

If the READING of ammeter A1in figure is 2.4 A, what will the ammeter A2andA3read? Neglect the resistances of the ammeter. A3=A1+A2=2.4+1.6=4.0A.

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nertia ,

If the car MOVES forward and suddenly STOPS then the water also moves forward

Here option b is correct

P.S. If this had HAPPENED on a slope then water would move forward and upward(ie. water would rise

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ong>Answer:

Time taken by athlete to complete ONE ROUND = 40 seconds. Distance covered = ?? Displacement = ?? HENCE, the distance covered at the end of 2 min 20 seconds is 22000 m or 22 km

Explanation:

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I don't SOLVE this PROBLEM

ong>ANSWER:

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(-1)^2 +(k)^2 = 1

(k)^2= 1-1=0

k =0

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ong>Answer:

90 degree is ANGLE between TWO ANGLES

ong>Answer:7.) when 500 calories of heat is SUPPLIED, it TURE by 500 its mau heat is to be supplied to raise its temper 50 moste otres betrouros do Botector toon to oiton aut avtoos sool to. Venerinas TEMPERATURE naises by 15 c, how much​.

Explanation:

it happens due to RAY of LIGHT.

Butterfly uses RANDOM motion to fly around. In random motion, the FLIGHT direction and speed is continuously changed.

correct

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Explanation

Given, 16μF V = Q/C = Q/16μF When dielectric is inserted V' = Q/C = Q/K (16μF) = V/8 Q/K (16μF) = Q/8 × 16μF K = 8 OPTION B is correct.

Planets and moons are very massive objects and have a very strong pull on other objects. This phenomenon is known as gravity. More massive objects have a stronger pull than LESS massive objects. This is why you weigh more on LARGER, more massive planets like JUPITER and less on smaller, less massive planets like Mars.

ong>EXPLANATION:

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ong>ANSWER:

in option there is only ONE UNIT of force 0N and a=0m/s² as it is in UNIFORM velocity

EXPLANATION:

sorry but where is the figure attached??

The SI unit of ELECTRIC field is newton per coulomb / VOLTS per meter.

3rd answer is CORRECT NEWTONS third law of motion

ong>ANSWER:

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Explanation:

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ong>Answer:

T1 is GREATER

Explanation:

here resistance at temperature T1 is

greater than that of R2. SINCE resistance

of metallic wire is more at higher

temperature than at lower temperature,

hence T1> T2.

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ong>Answer:

Explanation:

Avibration in a STRING is a wave. Usually a vibrating string produces a sound whose frequency in most CASES is constant. Therefore, since frequency characterizes the pitch, the sound produced is a constant note. Vibrating strings are the basis of any string instrument LIKE guitar, cello, or PIANO. The speed of PROPAGATION of a wave in a string is proportional to the square root of the tension of the string and inversely proportional to the Square root of the linear mass of the string.

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ong>Answer:

The EQUATION –v=v0+v2 reflects the FACT that when acceleration is constant, –v is just the simple average of the initial and final velocities. Figure 3.18 illustrates this concept graphically. In part (a) of the figure, acceleration is constant, with VELOCITY increasing at a constant rate.

to EXIST together or at the same time.

EXPLANATION:

sebaceous glands are holocrine glands that produce sebum, a semiliquid mixture of glandular cell debris containing glycerides, free fatty acids, WAX esters, squalene, cholesterol, and cholesterol esters.

Sebaceous glands are present everywhere on the HUMAN skin except for the palms, soles, and dorsa of the feet.

Generally, they are associated with hair follicles and empty through a short duct

into the canal of the hair follicle.1 The sebaceous glands are holocrine glands that produce sebum,

a semiliquid mixture of glandular cell debris containing glycerides, free fatty acids, wax esters

, squalene, cholesterol, and cholesterol esters. The largest and most numerous sebaceous glands are FOUND on the face, scalp, chest, and back.

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