Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

The stunt driver should RIDE with the SPEED of 101.4km/hr or 28.18m/s should DROP the SURVIVAL kit 2020m in advance.

Explanation:

Check the image for the required solution.

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ANSWER:

EXPLANATION:

REFER to the PICTURE ATTACHED!

ANSWER:

inte

Explanation:

integeration of dv/dt = V

and INTEGRATION 3t^2=t^3

2T = t^2

v= t^3 +t^2

ANSWER:

answer in PHOTO plz LIKE so much MIND used in it

CHANGR in VELOCITY at PER UNIT TIME

REFER to the ATTACHMENT

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ANSWER:

hlo g...MARK as brain LIST answer..

Explanation:

there is ur answer....

PLEASE follow m. and mark as brain list

ANSWER:

ANGULAR VELOCITY can be calculated by the formula.

p=mvr.

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ANSWER:

APPROXIMATELY, 1.66.....

Answer:

HI good NIGHT out with a few MINUTES to any other way around the WORLD

1/2+A+B=AB A+Z=ABZ ANSWER

ANSWER:

This PHENOMENON is KNOWN as photoelectric effect.Photoelectrons are collected at the cathode,which is kept at a LOWER potential with respect to the anode.The potential difference between the electrodes can be increased or DECREASED,or its polarity can be reversed.

Answer:

OPTION 2 is CORRECT as the speed 2KG mass is TWICE than 4kg mass

ANSWER:

HEIGHT,y/2=ut +1/2at square

-y/2=0-1/2 G(t-1) SQ.

y=g(t sq.+1-2T)

Explanation:

time, -y=0- 1/2g t sq.

T=2y/g

=2g(t sq.+1-2t )/g

=2(t sq.+1- 2t )

ANSWER:

because it is a STEP up TRANSFORMER

Answer:

rw = mean wheel effective radius

Ft = Fr + Fg + Fd + Fie

Fr = Tyre rolling resistance ( can be in the form of CrN - SIMPLIFIED and treated as independent of velocity)

Fg = forces due to gradient (depending on slope angle, can be positive of negative)

Fd = aerodynamics drag (as a function of air density, drag coefficient, vehicle cross sectional area, and SQUARED of vehicle velocity)

Fie = equivalent inertial force (during acceleration) - (including linear and rotational inertias, due to vehicle MASS and rotating component of gear train and wheels)

So you MUST determine the acceleration required to reach you designed speed.

And must also INCLUDE overall transmission efficiency in order to get the right size of the motor.

Just to visualize;

for 1000 kg car and everything else constant;

on flat road, @ 25 km/h requires 1.0 kW power

on 5o gradient climbing, @ 25 km/h requires 6.9 kW power

on flat road, accelerating @ 1.4 m/s2 (i.e. 0 - 25 km/h in 5 sec), requires 10.6 kW power.

i DONT KNOW the ANSWET REALLY SORRY

Answer:

80m/s

Explanation:

T=2usin30digree/g

=2×80/10=16

when,T/2,. =u/g

16/2=u/10

u=80m/s

☺️The magnetic effect of electric current is known as ELECTROMAGNETIC effect.

☺️It is observed that when a compass is BROUGHT near a current carrying conductor the needle of compass GETS deflected because of flow of electricity.

this PROPERTY of vector comes in STD 12 of NCERT mathematics

▪Electronegativity is a measure of the tendency of an atom to attract a BONDING pair of electrons.

▪️The Pauling scale is the most commonly used. FLUORINE (the most electronegative element) is ASSIGNED a VALUE of 4.0, and values RANGE down to caesium and francium which are the least electronegative

ANSWER:

G TAN THETA...................

ANSWER:

FRIEND UR QUESTION is INCOMPLETE

Question 1 ANSWER is d

Question 2 answer is c

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ANSWER:

Where's the FIGURE FRIEND.......

ANSWER:

RADIUS of loop = 100m

(1)DISTANCE covered in covering 1 loop

= 2πr = 2*22/7*100 = 4400/7m

= 628.57m

displacement = 2r = 2×100 = 200m

(2) in covering 1/2 loop

distance= 628.57/2 = 314.28 m

displacement = 2r = 2(100) = 200m

(3) distance covered in covering 1/4 TH loop

= 1/4*628.57 = 157.14 m

displacement = r = 100m

ANSWER:

bhaii kha s HO tm....COACHING kha jaate ho...phle ye btaao ZARA

➡️ The degree of unsaturation (also known as the index of hydrogen deficiency (IHD), DOUBLE bond equivalents, or unsaturation index) is a CALCULATION that determines the total number of rings and π BONDS.

Answer:

1:

EXPLANATION:

Here VR is velocity of River

Vm velocity of man

Vmr is velocity of man with RESPECT to river

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Answer:

Explanation:

=> Here, A particle moves with uniform acceleration along  STRAIGHT line AB.Its velocities at A and B are 2m/s  and 14 m/s respectively. M is the mid point of AB.

v²=u²+2as  

v² = 2² + 2as

v² - 4 = 2as ...(1)

14² = v² + 2as

196 - v² = 2as ...(2)

From eq (1) and (2), we get

196 - v² = v² - 4

2v² = 200

v² = 100

V = 10 m/s.

=> time taken to travel from A to M

v = u + at1

t1 = v - 2 / a

= 10 - 2 / a

= 8 / a

=> time taken to travel from M to B

t2 = 14 - v / a

14 - 10 / a

= 4 / a

=> t2 / t1 = 4/a / 8/a = 1 / 2 a

Thus,  time taken to travel from M to B is 1s.

Answer:

Explanation:

TOTAL distance travelled = h

total TIME taken = n seconds

distance travelled in the last(n th) second = 0.36h

We know that distance travelled in nth second = u + (a/2) (2n-1)

⇒ 0.36h = 0 + (9.8/2) (2n-1)

⇒ 0.36h = 9.8n - 4.9   --------------------------------(1)

We know that h = ut + (1/2) at²

⇒ h = 0×t + (1/2) × 9.8 × n²

⇒ h = 4.9n²  ---------------------------------------------(2)

Replacing VALUE of h from (2) in (1),

0.36 × 4.9n² = 9.8n - 4.9

Divide LHS and RHS by 4.9, we get

⇒ 0.36n² = 2n - 1

⇒ 0.36n² - 2n + 1 = 0

h = 4.9n² = 4.9 × 5² = 122.5m

Answer is 122.5m

Answer:

The answer is 4000 W.

Explanation:

As the car is going up an INCLINE with a slope of 2 in 25 at a steady speed of 18kmph.

Therefore the slope is tan(θ) = 2/25 = sin(θ) approximately.

Thus the force "F" = 1000 X 10 x  2/25  

And power = FV = 10000 x 2/25 x 18 x 5/18

                        = 4000 W

Thus the power of ENGINE is 4000 W.

☺️So when kept open to air it ABSORBS moisture from atmosphere and becomes SOGGY over a period of time.

☺️Bleaching powder reacts with air.

☺️When bleaching powder is exposed to air it reacts with Carbon dioxide present in the air to PRODUCE Calcium CARBONATE and Chlorine GAS.

EXPLANATION:

A VECTOR perpendicular to both of the GIVEN vectors can be found out by finding the cross PRODUCT of the two vectors

Answer:

Errors are normally classified in THREE categories: systematic errors, randomerrors, and blunders. Systematic Errors. Systematic errors are due to identified CAUSES and can, in principle, be eliminated. Errors of this TYPE result in MEASURED values that are consistently too high or consistently too low.

Explanation:

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Answer:

MAGNETIC FIELD inside a TOROID is

B = (μNi)/2πr

i = 5A

μ= 4π*10^-7

N = 800

r = 0.5m

Putting all those values into the formula

We get B = 1.6mT

Answer:

input work like HARD but OUTPUT work is hard work

Answer: Derived in below shown pic.

A DIMENSIONALLY correct formula may or may not be physically correct as in this case,

1/2do not have any DIMENSIONS

Therefore formula of kinetic energy which is dimensionally correct becomes

E=M(V)^2

But it is the same formula which was GIVEN by Einstein in vacuum

E=M(C)^2

I hope that you had found your answer.

If i am wrong at any step please LET me know

Explanation:

LET the speed of RIVER be x KMPH

(5-x) × 1/4 =1

5-x =4

x = 5-4

= 1 kmph

Explanation:

it is a machine that has bed or plate in which the METALLIC material is placed so that it can be CRUSH or moulded.

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Hello!!

➡️Force may increase or decrease the VELOCITY of the object. It is the REACTION force acting on an ACCELERATED object because of applied force.

➡️Thrust acts on the accelerated object in the direction opposite to the applied force hence it ACCELERATES the object in the direction opposite to the applied force

Thanks!!

Explanation:Human BODIES are used to AIR pressure. The air pressure in our LUNGS, EARS and stomachs is the same as the air pressure outside of our bodies, which ensures that we don't get crushed. Our bodies are ALSO flexible enough to cope when the internal and external pressures aren't exactly the same.

ANSWER:

A= 5 &

Explanation:

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ANSWER:

Lateral shift formula is

L = t*sin(i-r)/cos(r)

t = 0.1m

i = 60°

As we don't KNOW 'r'. We can find out usinf SNELLS law

n1sin(i) = n2sin(r)

1*sin60° = 1.5*(sinr)

1/√3 = sin(r)

USING identity

cos(r) = √(2/3)

tan(r) = 1/√2

sin(i-r) = sin(i)cos(r) - sin(r)cos(i)

sin(i-r)/cos(r) = sin(i) - tan(r)cos(i)

= (√3/2) - (1/√2)(1/2)

= (√6 - 1)/2√2

= 0.51

L = 0.1*0.51 = 0.051m = 5.1cm

ANSWER:

Aand D options are correct

Explanation:

Energy stored= 1/2L(I)^2

Now, V=2V and R=1 ohm ,L=1H

By ohns law, V=IR

I=V/R

I= 2÷1

I=2Ampere

E=1/2×1×2×2

E=2watts

Current at this POINT = 2 ampere (shown above by ohms law)

I hope that this is the answer

If I am wrong then please let me know.

How can the options B and C are correct

ANSWER:

U should MENTION here how FORCE is APPLIED.

ANSWER:

EXPLANATION: [L3T-1]

Answer:

RESULTANT = a^2 + a^2 + 2 (a × a ) cos90

=2 a^2 + 0

=2 a^2

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