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Q. Explain about Centrifugal force?
The centrifugal force is
Fc =mv2/r,
Where r is the radius of the orbit and m is the mass of the object and v is the velocity. The orbital radius is assumed approximately equal to the earth's
Radius for low orbit, The gravitational force is
Fg = -mg,
Where g is the acceleration due to gravity, We are again assuming low orbit.
Then Fc + Fg = 0 and
mv2/r= mg
v2= gr, and,
v =√gr.
Assuming earth's radius to be 3960 miles and the acceleration due to gravity is 32 feet per second2 , we have
v = √32/5280 × 3960
v = 4.9mi/sec.
conclution about friction is a necessary evil
Fusion Reaction: In nuclear fusion light nuclei are brought together to form a relation heavier nucleus. They energy free in nuclear fusion is larger than that free in fission.
meaning of pull
Tin: Atomic number 50 Symbol Sn Atomic weight 118.69 Discovery Known since ancient
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.Define like and unlike parallel forces
Energy Conservation on an Incline In the given case of the cart rolling down predispose and there are three external forces (the general force, the force of friction and air re
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When an electron makes transition from higher energy level having energy E2(n2) to a lower energy level having energy E1 (n1) then a photon of frequency v is emitted.
A ski starts from rest and slides down a 20 degree incline 100meters long. (a) if the coefficient of friction is .090, what is the the ski's speed at the base of the incline? (b)if
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