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two sealed containers with volumes v1 and v2 respectively contain dry air at pressures p1 and p2 and room temperature t
the current in a series circuit is 149 a when an additional 106- resistor is inserted in series the current drops to
joey whose mass is 39kg stands at rest at the outer edge of the frictionless 230kg merry-go-round 22m from its center
a motor running at 1500 revsmin has on its shaft three pulleys of radii 6 10 and 25 cm respectivelya find the linear
a 250 g 24-cm-diameter plastic disk is spun on an axle through its center by an electric motor what torque must the
an energy storage system based on a flywheel a rotating disk can store a maximum of 30 mj when the flywheel is rotating
a series rcl circuit driven at angular frequency w 605 rads has a capacitive reactance xc 856 w an inductive
the radius of the earths orbit around the sun assumed to be circular is 150 x 108 km and the earth travels around this
calculate the frequency for the line hgama of the balmer series for hydrogencalculate the photon energy for the hgame
an atom in a metastable state has a lifetime of 620 ms what is the uncertainty in energy of the metastable state in
a series rcl circuit operating at 600 hz contains a 49- resistor and an 50-microf capacitor if the power factor of the
a 350kg piano slides 38m down a 29 degree incline and is kept from accelerating by a man who is pushing back on it
a small spherical mass of 825 times 10-2 kg and charge of q2 - 040 microc hangs from a thread the thread is at an
a satellite of mass 6000 kg orbits the earth in a circular orbit of radius of 90106 m this is above the earths
it is necessary to determine the specific heat of an unknown object the mass of the object is 1700 g it is determined
a 139-kg object hangs in equilibrium at the end of a rope taken as massless while a wind pushes the object with a 665-n
basketball star covers 285 m horizontally in a jump to dunk the ball his motion through space can be modeled precisely
sam pushes a 100-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 30 n
the tension in the horizontal towrope pulling a water-skier is 240 n while the skier moves due west a distance of 54 m
in an amusement park ride cars are suspended from l 429 m cables attached to rotating arms at a distance of d 611 m
your cars wheels are 65 cm in diameter and the wheels are spinning at an angular velocity of 107 rads how fast is your
a diver springs upward from a diving board at the instant she contacts the water her speed is 890 ms and her body is
a horizontal rifle is fired at a bulls-eye the muzzle speed of the bullet is 621 ms the barrel is pointed directly at
a long solenoid has 1400 turns per meter of length and it carries a current of 35 a a small circular coil of wire is
at time t 0 and at position x 0 m along a string a rightward x dir traveling sinusoidal wave with frequency of 220 hz