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when a converging lens is used in a camera as in the top figure the film must be at a distance of 0210 m from the lens
a spherical mass on a rod of length l rotates rigidly about a fixed axis at the opposite end of the rod at time t0000s
a ufo streaks across the sky at a speed of 090c relative to the earth a person on earth determines the length of the
a size-5 soccer ball of diameter 226 cm and mass 426 g rolls up a hill without slipping reaching a maximum height of
the period of a physical pendulum is measured first at sea level where the pendulum completes 100 cycles in 1561 s and
after landing on an unfamiliar planet a space explorer constructs a simple pendulum of length 490 the explorer finds
a beam of polarized light strikes two polarizing sheetsthe characteristic directions of the second is 90 degree with
a 108 kg object oscillates at the end of a vertical spring that has a spring constant of 205 104 nm the effect of air
a simple pendulum is 400 m longa what is the period of small oscillations for this pendulum if it is located in an
the angular position of a pendulum is represented by the equation given below where is in radians and 412 rads
a simple pendulum has a mass of 0250 kg and a length of 600 m it is displaced through an angle of 140deg and then
a 61 v battery is connected across a 62600 ohm and a 31700 ohm resistor connected in series what is the per cent error
a block-spring system oscillates with an amplitude of 335 cm the spring constant is 250 nm and the mass of the block is
a galvanometer has a coil resistance of 100 ohms and gives a full scale deflection when the potential difference across
a piston in a gasoline engine is in simple harmonic motion if the extremes of its position relative to its center point
a baseball has a velocity of 436 ms 975 mih directed horizontally as it is released by a pitcher the balls velocity
consider a bimetallic strip consisting of a 05mm thick brass upper strip welded to a 05mm thick steel lower strip when
a wedge of air is formed between two glass plates that are 90 cm long with one edge touching and the other separated by
tritium 13 rmrm h is an unstable isotope of hydrogen its mass including one electron is 3016049 rm u determine the
a physical pendulum is composed of a sphere whose center of gravity is attached to a thin rod the sphere has a moment
given that the number of electrons per volume in aluminum is 301x1056 electronsm3 determine the valence number number
in the movie once upon a time in america set in the prohibition era a clever ploy is used by bootleggers transporting
a particle moves along the x axis it is initially at the position 0270 m moving with velocity 0070 ms and acceleration
an antifreeze solution is made by mixing ethylene glycol 1116 kgm3 with water suppose the specific gravity of such a
an irregularly shaped chunk of concrete has a hollow spherical cavity inside the mass of the chunk is 415 kg and the