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a transverse wave is traveling through a canal if the distance between two successive crests is 317 m and four crests
a assume that air pressure is 100 atm and the air temperature is 193o c if the abolute zero apparatus is open to the
the coefficient of performance of a refrigerator is 470 the compressor uses 200j of energy per cyclepart a how much
a carnot refrigerator operating between -100 cand 100 c extracts heat from the cold reservoir at the rate 100js what
a 2kg package is released on a 531 degree incline 4m from a long spring with force constant 120 nm that is attached to
a block of unknown mass is attached to a spring of spring constant 61 nm and undergoes simple harmonic motion with an
a uniform 245- kg spinning disk with a radius of 0323 m is brought to rest by a brake-pad pressed against the side
a system does 430 104 j of work and 700 104 j of heat flows into the system during the process find the change in the
a 50- kg block oscillates with an amplitude of 0090 m on a light spring of constant k 280 nmwhat is the maximum value
a gas molecule having a speed of 322 ms collides elastically with another molecule of the same mass which is initially
a bicycle is turned upside down while its owner repairs a flat tire a friend spins the other wheel of radius 04 m and
a person is trying to practice with their yo-yo they can throw the yo-yo with initial angular velocity winitial 500
a girl jumps on bike and exerts torque of 250 n-m perpendicular to the pedal moment of inertia of bike wheel is i
a marble slide towards a 2nd marble at rest along the surface of frictionless table-top they behave as point masses and
an electromagnetic wave in vacuum has an electric field amplitude of 220 vm calculate the amplitude of the
measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8305decays per
a microwave oven is powered by an electron tube called a magnetron which generates electromagnetic waves of frequency
a 75kg person goes down a straight slide inclined at 32 degrees above the horizontal the person is acted on by his
the tension in a guitar string is increased by a factor of two by what factor does the wave velocity
after the sun exhausts its nuclear fuel its ultimate fate will be to collapse to a white dwarf state in this state it
the sun radiates energy at a rate of 3861026 w its radius is 70108m if the distance from the earth to the sun is
an engineer wishes to determine the specific heat of a new metal alloy a 0150-kg sample of the alloy is heated to
the earth is 1491011 meters from the sun if the solar radiation at the top of the earths atmosphere is 1340 wm2 what is
krypton is a monatomic ideal gas suppose you have 40 moles of krypton at 293 k and 1 atm after absorbing 1830j of heat
in a head-on collision a car stops in 03s from a speed of 30 ms the driver has a mass of 80kg and is fortunately