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The correct answer for this following question is option (C).

Option c is the correct answer

Option C is the correct answer

the correct answer is option c

option c is the correct answer

option c is answer that question

the correct answer is (C)

the correct answer is C

The passengerwill appear tosuddenlylurchforwardsuntil theystopdue to friction withtheir seat, or because theystopthemselves by holding on, for instance.Bus comes in to rest ,butpassengersdue to Newton's 1st law tries to stay intheirmotion. So they face aforwardjerk while stoppingbus.

option c is correct answer according to your question

c is correct option to question

ball rolling on the floor stop due to answer is muscular force

c. frictional force is correct answer

KE = m*v*v/2 initial KE = 1000*40*40/2 = 800000J updated KE = 1000*60*60/2 = 1800000 J so difference is 1800000-800000 = 1000000 J

In physics, the law of conservation of energy states that the total energy of an isolated system remains constant and that energy can neither be created nor destroyed; rather, it can transform from one form to another.

When a pendulum moves from its main position to either of its extremes,it rises through a height above the mean level.At this point,the K.E of the bob changes into P.E..As it moves back to the main position,its P.E decreases progressively and K.E. increases.As the bob reaches the main position,it has only K.E.This process is repeated as long as the bob oscillates.

The bob eventually comes to rest because the air resistance resists its motion and the pendulum loses its K.E. to overcome this friction and stops after sometime.

The law of conservation of energy isn't violated as the energy lost by the pendulum is gained by its surroundings

ans: 2*10^20N is the right answer

2*10*20N is right answer

Use Newton law of gravity F=Gm1m2/r^2m1=6×10^24kgm2=7.4×10^22kgr=3.84×10^8mG=6.7×10^-11Nm^2kg^-2

Force of Man on Earth - is his weight i.e 60×9.81=588.6 N and acceleration of Earth towards Man will be very small i.e nearly equal to zero due to it's bulky mass.

let the velocity of body moving towards the wall be 'v'after collision the velocity would be (-v), i.e. in the opposite direction.so change in momentum, p= mv-(-mv)= 2mvso answer is (A)

thanku

The MassOf TheEarth Is 5.97 X 10 24Kg, AndThe MassOf The Moon Is 7.35X 1022 Kg. The Distance Of Separation, Measured Between Their Centers, Is 3.84X108 M. Locate The Center OfMassOf TheEarth–Moon System As Measured From The Center Of TheEarth.

value of g at the surface on the surface of earth = 9.8 m/s2

surface of earth=9.8m/s2

surface of earth =9.8m/s2

Necessary conditions for particle to show SHM are:

1) In system there should be an elastic restoring force(A force which rises towards to an equilibrium.If the system is disturbed away from the equilibrium, the restoring force will tend to bring the system back towards equilibrium) which is acted on the system.

2) The acceleration of the system should be directly proportional to the displacement and is always directed towards mean position.

When an object moves to and fro along a line, the motion is called simple harmonic motion.

60cm is the correct answer

60 cm is the right answer.

3 is the correct answer 12×4 =60

work done= change in K.E.=1/2mv^2=1/2(60×10000)=300000 j=300 kj

focal length give 15 cm

there will be no displacement they are moving to opposite direction there for the displacement will be zero

Ans :- Given:

lengths of two trains = 320m and 430m.

and their respective speed = 50km/hr and 40km/hr

Trains are moving in opposite direction. so to crossing each othertotal distance = 320 + 430 = 750m

and total speed = 50km/hr + 40km/hr = 90km/hr

The one with more power that is240V and 500W will light up brighter.

In seriesV=IRI=V/RI=2/0.4I=5AIn parallelI=2/1.666I=1.199A

Here, Initial temperature ( Ti) = 80°C Final temperature ( Tf) = 50°C Temperature of the surrounding ( To) = 20°C t = 5 min A/C to Newton's law of cooling

Rate of cooling ( dT/dt) = K[ (Ti+Tf)/2 - To] ( Tf - Ti)/t = K[ ( 80 + 50)/2 - 20]( 80-50)/5 = K[ 65 - 20]6 = K× 45 K = 6/45 = 2/15

in second condition, initial temperature ( Ti) = 60°C Final temperature ( Tf) = 30°C Time taken for cooling is t A/C Newton's law of cooling ( 60 - 30)/t = 2/15 [ (60+30)/2 -20]30/t = 2/15 × 25 30/t = 50/15 = 10/3 t = 9 min

Pendulum period in secondsT ≈ 2π√(L/g)L is length of pendulum in metersg is gravitational acceleration = 9.8 m/s²

there are 86400 seconds in a day.

dT/dL = (1/2)2π√(1/g)√1/L) = π√(1/Lg)dT = π/√(gL) dL

dL/L = 0.01 (ie, 1%)dL = 0.01LdT = π/√(gL) (0.01)LdT = (0.01)(π/√g) L/√LdT = (0.01)(π/√g)√LdT = (0.01)(π√(L/g))dT = (0.01)(1/2)(2π√(L/g))dT = (0.005)TdT = (0.005)(86400) = 432 seconds

position vector will.be m1r1+m2r2/M1+m2=2(2i+3j)+5(4i-5j)/2+5=4i+6j+20i-25j/7=24i-19j/7

Heat capacity = Mass × Specifc heat capacity= 150 × 10^-3 kg × 410 J / (kg K)= 61.5 J / K

Heat capacity of copper is 61.5 J/K

Option (d) is correct.

the energu is also increase by 5℅

It will also increase by 5%

B) nuclear fusion is the correct answer.

hydrogen bomb is based on the principle of nuclear fusion