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V = u+at. (u=16 , a=4.5 , t =2.5)

V = 16+4.5×2.5

V = 27.25m/s

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Answer:

x=Asin(ωt)

Let x=

2

1

, A=

2

, ω=

T

2π

, T=0.2 sec

Time required to REACH WALL s GIVEN by

2

1

=

2

sin(

0.2

2πt

)

sin(10πt)=

2

1

⇒t=

60

1

solving this we get

t=T/6

Now TOTAL time of motion is

t=2×T/6

t=T/3

By problem t=0.2 sec

T=0.6 sec

T=2π∗sqrt(m/k)

By solving we get K=100N/m

Answer:

W(Earth) = m G(Earth) = 10 X 10 = 100N. Themass m = 10KG on both the moon and Earth.

Explanation:

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ANSWER:

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ANSWER:

I THINK the answer is BULB

ANSWER:

GIVEN that

2

1

Iω

2

=

2

1

MV

2

∴

2

1

×5kgm

2

×6

2

rad/s=

2

1

×20kg×v

2

∴v

2

=9

∴v=3m/s

ANSWER:

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Explanation:

MELTING is solid being converted into LIQUID and BOILING is liquid being converted into gas

Answer:

Height of a mercury column = 67 CM or, 0.67 m

As it is said about a single place so we can ASSUME the pressure to be equal in both the cases of mercury and water.

Pressure in mercury = Pressure in water

= h₁p₁g = h₂p₂g

= (h₁p₁g) / (p₂g) = h₂

= (0.67*13600*9.8) / (1000*9.8) = h₂

= 89297.6/9800 = h₂

= 9.112 m = h₂

So, there will be a 9.112 m or, 911.2 cm of water column needed to measure the same pressure as mercury.

Hope this HELPS.

ANSWER:

NINE ORBITALS

Explanation:

there are nine orbitals

ANSWER:

prton is MOVING TOWARDS east and therefore the motion of the current is towards east

Answer:

The electric field Intensity at a POINT is the force experienced by a unit positive CHARGE PLACED at that point. Electric Field Intensity is a vector QUANTITY. ... Formula: Electric Field = F/q.

Explanation:

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ANSWER:

Explanation:VVV f,u,if,DY,u,UUD,fuuf,gixgxg,fu,if,if,if,fuuf,7%,%7

The ANGLE between FORCE and DISPLACEMENT should be θ = 0° for maximum work. Hey this is ur answer..

Explanation:

METAL is a good CONDUCTOR of heat. If the handles of the saucepans were made of metal, they would become too hot to hold and that would be dangerous. SOMEONE trying to hold a metal HANDLE could drop the saucepan or RECEIVE a nasty burn.

ANSWER:

NATURAL WASTE DONE by ANIMALS

ANSWER:

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Answer:

The precautions to be TAKEN while using a meter scale to measure LENGTHS are as follows : 1)The scaleshould be placed to the side of the OBJECT being measured. It should also be in touch with the object being measured. 2)While reading the scale, eye MUST be placed vertically above the scale MARK being read.

Explanation:

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Let it will take T time to cover the WHOLE length

so we can say

H = \frac{1}{2}gT^2H=21gT2

now in last 0.2 s it will cover 6 m

H - 6 = \frac{1}{2}g(T - 0.2)^2H−6=21g(T−0.2)2

now by above two equations

\frac{1}{2}gT^2 - 6 = \frac{1}{2}g(T-2)^221gT2−6=21g(T−2)2

\frac{1}{2}g(2T - 2)(2) = 621g(2T−2)(2)=6

T = 1.3 sT=1.3s

now the height of the TREE is

H = \frac{1}{2}*10*1.3^2H=21∗10∗1.32

H = 8.45 MH=8.45m

Answer:

figurative question

Explanation:

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ANSWER:

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Explanation:

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ANSWER:

VOLUME=

3

4πR

3

V

ΔV

×100=3

R

∆R

×100

=3×

100

1

×100

=3

∴Percentage ERROR in volume is 3%

ANSWER:

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ANSWER:

If we consider an extended OBJECT as a system of SMALL particles constituting its body, the RATE of change of angular momentum with respect to time of the system of particles at a fixed POINT is equal to the total external torque acting on the system about that point.

Explanation:

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Answer:

inertia and mass

EXPLANATION:

newtons 1ST EQUATION of motion shows relation between inertia and mass

ANSWER:

The equation shows that the acceleration of an OBJECT is: proportional to the resultant FORCE on the object. inversely proportional to the MASS of the object.

Answer:

In statistics, propagation of uncertainty (or propagation of error) is the effect of variables' UNCERTAINTIES (or ERRORS, more specifically random errors) on the uncertainty of a function BASED on them. ... The value of a quantity and its error are then expressed as an interval X ± u

Propagation of Error (or Propagation of Uncertainty) is defined as the effects on a function by a variable's uncertainty. It is a calculus derived statistical calculation designed to combine uncertainties from multiple variables, in order to provide an ACCURATE measurement of uncertainty

Answer:

not ABLE to think CLEARLY or to UNDERSTAND what is REAL and what is not real : crazy or insane.

Answer:

Electromagnets are widely used as components of other ELECTRICAL DEVICES, such as motors, generators, ELECTROMECHANICAL solenoids, relays, loudspeakers, hard disks, MRI MACHINES, scientific instruments, and magnetic separation equipment.

Answer:

SELINA TB PG 104 all ANS PRESENT

Explanation:

Explanation:

FOCUS is the point where light rays originating from a point on the object converge. The PRINCIPAL focus is defined as the point where a beam PARALLEL to the principal AXIS appears to diverge converges from a point on the principal axis after passing through the lens.

ANSWER:

no PROBLEM

EXPLANATION:

it is very EASY you can do it

Answer:

A• The acceleration on an object due to the gravity of any massive body is represented by g (small g). The force of attraction between any two UNIT MASSES separated by unit distance is called universal gravitational constant denoted by G(capital g). The relation between G and g is not proportional.

Explanation:

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ANSWER:

TRANSLATE in ENGLISH PLSS

<P>EXPLANATION:

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Answer:

Fundamental quantity Unit Symbol

1. LENGTH metre m

2. Mass kilogram kg

3. Time second s

4. Electric Current Ampere A

5. Temperature KELVIN K

6. Luminous Intensity candela cd

7. Amount of SUBSTANCE MOLE mol

ANSWER:

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Answer:

6ozyjE CACHE wdvxjwshiw sxbo qdoh2eu9xqdoh2eu9xqqdoh2euqdoh2e2eipbc1eojcoj1eecojn1edupv

Explanation:

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Answer:

r=5m

g=9.8m/s2

The MINIMUM SPEED , v=rg

v=5×9.8

v=7m/s

The correct OPTION is B.

ANSWER:

The SI unit of resistance is ohms and is denoted by Ω This law is one of the most basic laws of electricity. It helps to CALCULATE the power, efficiency, current, voltage, and resistance of an element of an electrical CIRCUIT.

Explanation:

चुम्बकीय आघूर्ण की विमा = [L ]²[A] .

The unit for MAGNETIC moment in INTERNATIONAL SYSTEM of Units (SI) base units is A⋅m2, where A is ampere (SI base unit of current) and m is meter (SI base unit of DISTANCE).

ANSWER:

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ANSWER:

In an electromagnetic WAVE, electric and magnetic field VECTORS are perpendicular to each other and at the same TIME are perpendicular to the DIRECTION of propagation of the wave. This nature of electromagnetic wave is known as Transverse nature

the CORRECT ANSWER is 6.25e-20

ANSWER:

GRAM is BOT a FUNDAMENTAL UNIT

ANSWER:

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ANSWER:

at greater than 2f the IMAGE is smaller compared to the object. at 2f the image SIZE is EQUAL to object size.

Hope it helps....

ANSWER:

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