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a carnot efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir
a girl whirls a stone in a horizontal circle of radius 1 m at a height of 15 m above the ground the string breaks and
a simple pendulum has a length of 080 m and a bob of mass 020 kg it is initially displaced to an angle of 18 degrees
if the x position of a particle is measured with an uncertainty of 100times10-10 m then what is the uncertainty of the
a if an electron makes a transition from the n 5 bohr orbit to the n 2 orbit determine the wavelength of the photon
ultraviolet light is incident normally on the surface of a certain substance the binding energy of the electrons in
when light of wavelength 380 nm falls on a cesium surface electrons having a maximum kinetic energy of 113 ev are
a meterstick moving at 0931c relative to earth approaches an observer at rest with respect to earth assume the long
light enters a substance from air at 30 degrees to the normal it continues through the substance at 23 degrees to the
a solenoid is to have an inductance of 0295 mh a cross-sectional area of 591 x 10-4 m2 and a length of 349 cma how many
consider a camera that moves its lens back and forth to focus on objects near and far as an object approaches what
an ac generator is to have a maximum output of 318 v each coil has an area of 0137 m2 and a resistance of 169 and
a transformer has 330 primary turns and 1340 secondary turns the input voltage is 120 v and the output current is 150 a
a 500-turn solenoid 25 cm long has a diameter of 25 cm a 10-turn coil is wound tightly around the center of the
what is the velocity of a beam of electrons that go undeflected when passing through perpendicular electric and
a 126 v battery is in series with a resistance of 0324 ohms and an inductora after a long time what is the current in
in a youngs double slits experiments the interference patterns are shown on the screen1 what is path difference between
an ambulance is generating a siren sound at a frequency of 2400 hz the velocity of sound is 340 ms the observer is
the speed of sound in air at 0 degrees c is 331 ms if the density of air is 129 kgm3 then what is the bulk modulus of
a heat engine has an efficiency of 350 and its power output is 600 w what is the rate of heat
light of wavelength 530 nm is incident on two slits that are spaced 10 mm apart how far from the slits should the
astronauts use a centrifuge to simulate the acceleration of a rocket launch the centrifuge takes 25 seconds to reach
an airplane is to drop an abject to hit a target on the ground the plane is flying at a constant speed of 300 kmh
an elevator moving upward approaches the top floor of a high rise building and begins to slow down at the rate of 200
the angular resolution of a radio telescope is to be 0100 degrees when the incident wave has a wavelength of 300mm what