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a battery of emf e has an internal resistance r a variable resistance r is connected to the terminals of the battery a
two beams of red and violet colours are made to pass separately through a prism of a 60deg in the minimum deviation
in the bohr model of the hydrogen atom an electron in the lowest energynbspstate moves at a speed of 219x106 ms in a
two motorcycle cops are positioned together on i35s each is capable of a maximum speed of 219 kmhr they start from rest
here are two long parallel straight wires carrying identical currents and separated by a distance of 2a integrate
an application of spectra produced by diffraction grating is in astrophysics where the doppler shift of a particular
a sample of potassium metal in vacuum is illuminated by a light source as shown above the photoelectrons ie electrons
a 210kg block at rest on a horizontal frictionless air track is connected to the wall via a spring the equilibrium
a 44-n crate is suspended from the left end of a plank the plank weighs 21 n but it is not uniform so its center of
what is the amplitude of this wavewhat is the wavelength of this wavewhat is the frequency of this
a simple rc circuit is shown below where 50 momega and c 150 muf the capacitor has a charge of 900 muc before the
the pulley system in the figure is used to lift a crate of mass m50kg note that a chain connects the upper pulley to
for all problems where there are multiple forces acting on the same object draw a freeshybody diagram ie a diagram
two solid metal balls are placed in contact with each other the first ball is made of a material twice as dense as the
a 35-kip force p is applied at point d of the cast-iron post shown replace that force with an equivalent force-couple
the drawing shows a ray of light travelling through three materials whose surfaces are parallel to each other the
a mass m1410kg block on a smooth tabletop is attached by a string to a hanging block of mass m2260kg as shown in the
the system shown in the following figure is in static equilibrium and the angle 29 degrees given that the mass m1 is
as shown in fig 1 a wheel of radius 1 m and mass kg is rolling ie no slip between the wheel and the surface back and
neglect air friction a rifle bullet is shot at an angle of 60 from the ground at a speed of 2700 fts note be sure to
the figure below shows two point chargesnbspq1nbspnbsp56x10-8nbspc and q2nbspnbsp-63x10-8nbspc1 find the potential at
a block is propelled by a conveyor belt and released at point o with unknown velocity v0 the block is a projectile from
a fisherman sees rays of light apparently diverging from a point p on a fish see figure below the fish appears to be at
problem 1two e versus k relations in the valence band for different holes each in two different materials a b are
1 the ancient greek democritus and his teacher leucippus reasoned that matter must have a smallest component that was