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a fifteen-watt heater is used to heat a monatomic ideal gas at a constant pressure of 661 x 105 pa during the process
a grinding wheel is in the form of a uniform solid disk of radius 693 cm and mass 197 kg it starts from rest and
your new sports car of mass m is accelerated from rest at t0 with constant power p along a level road ingore any
a 60 kg boy and a 40 kg girl both wearing skates face eachother at rest on a frictionless ice surface the boy then
a 450-kg girl is standing on a 144-kg plank the plank originally at rest is free to slide on a frozen lake which is a
a 11 kg block of ice is initially at a temperature of -5degc if 48 105 j of heat are added to the ice what is the
an ideal gas is taken through a carnot cycle the isothermal expansion occurs at 240degc and the isothermal compression
a uniform thin solid door has height 240 m width 0900 m and mass 225 kga find its moment of inertia for rotation on its
a heat transfer of 91 105 j is required to convert a block of ice at -13degc to water at 13degc what was the mass of
early in the morning when the temperature is 50degc gasoline is pumped into a cars 45 l steel gas tank until it is
a hunter who is a bit of a braggart claims that from a distance of 17 km he can selectively shoot either of two
1 a dampled harmonic oscillator is made from a 08kg mass on a k14nm spring with a damping constant of 400gs it is
a carnot refrigerator extracts 300 kj as heat during each cycle operating with a coefficient of performance of 500a
a three-step cycle is undergone by 34 mol of an ideal diatomic gas1 the temperature of the gas is increased from 210 k
a small 125g plastic ball is tied to a very light 278cm string that is attached to the vertical wall of a room a
a photon emitted as a hydrogen atom undergoes a transition from the n5 state to the n2 statea find the energy of the
the current through a 686 resistor is 190 ma to the nearest volt what is the potential difference across the
a cylindrical copper rod of length 130 m and radius 160 cm is insulated to prevent heat loss through its curved surface
in an experiment 210 g of aluminum with a specific heat of 900 jkgmiddotk at 100degc is mixed with 480 g of water 4186
a steel tank contains 301 g of ammonia gas nh3 at a pressure of 135 106 pa and temperature of 71degca what is the
a laser used in a holography experiment has an average output power of 493 mw the laser beam is actually a series of
a disk-shaped merry-go-round of radius 263 m and mass 155 kg rotates freely with an angular speed of 0641 revs a 594
a 0123-kg ball is dropped from a height of 119 m and lands on a light approximately massless cup mounted on top of a
a 561 kg child is standing on the outer edge of a merry-go-round which has moment of inertia 864 kgm2 and radius 240 m
a 14 kg object at x 200m y 310m moves at 396 ms at an angle of 45 degrees north of east calculate the magnitude of the