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a bicyclist on a horizontal plane starts from rest and begins to pedal the wheel of radius r 0345m has a constant
estimate the thickness of steel density 8 gcm3 needed to stop a proton of momentum 2 gevc then for the same thickness
a concave mirror forms a real image twice as large as the object the object is then moved such that the new real image
an experiment was performed where a quartz-iodine lamp was used to measure the photocurrent in microamperes in
the ground state for a single valence electron of a rubidium atom z37 is 5s and its energy is ndash418 ev the valence
a lithium atom mass 117 x 10-26 kg is vibrating with simple harmonic motion in a crystal lattice where the force
your sofa wont fit through the door of your new sixth-floor apartment so you use a 108kw motor to lift the 844kg sofa
indiana jones is pushing back a 305 kg box of treasure which slides 46 m down a 25deg incline and kept from
a capacitor is connected to an ac generator that has a frequency of 34 khz and produces a rms voltage of 19 v the rms
a solid uniform 325 kg cylinder 650 cm in diameter and 124 cm long is connected to a 15kg weight over two massless
the blades in a blender rotate at a rate of 6900rpm when the motor is turned off during operation the blades slow to
an electric power plant that would make use of the temperature gradient in the ocean has been proposed the system is to
a certain type of laser emits light that has a frequency of 60 times 1014 hz the light however occurs as a series of
a cable passes over a pulley the cable does not slip on the pulley and the tension in the cable is not the same on
36 kg of a liquid metal with a latent heat of fusion of 3318 kjkg freezes while at its melting temperature of 398 degc
in a model ac generator a 500-turn rectangular coil 800cm by 200cm rotates at 120rpm in a uniform magnetic field of
a uniform steel bar with weight of 98 n and length of 30 m is suspended on each end by a rope a 500 kg mass hangs 500
a 259879 lbs go cart and driver rounds a curve if the centripetal force on the go cart and driver is 1250 lbs the go
stretching dna with its double-helix structure dna is coiled like a spring a biophysicist grabs the ends of a dna
a car wheel with a diameter of 30 inches has a linear velocity of 30 mph the car accelerates for 10 seconds after the
a cylinder piece of metal 085m tall with a diameter of 390 cm has a specific gravity equal to 50 what is the mass of
two small plastic balls hang from threads of negligible mass each ball has a mass of 0180g and a charge of magnitude q
a coating of n1127 material is to be added to n2149 glass in order to make it iridescent a what is the thinnest layer
an object moves 295m in the x-direction under the influence of a 125n force directed 52 degrees above the x-axis find