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a drop of mercury released in the ocean and it sinks calculate the percentage change in the volume of the drop of
a diver leaves a 3-m board on a trajectory that takes her 22m above the board and then into the water a horizontal
oppositely charged parallel plates are separated by 530 mm a potential difference of 600 v exists between the platesa
the electric field everywhere on the surface of a charged sphere of radius 0190 m has a magnitude of 585 nc and points
a crate pushed along the floor with velocity slides a distance after the pushing force is removeda if the mass of the
a speed skater moving across frictionless ice at 86 hits a 55 -wide patch of rough ice she slows steadily then
basketball player darrell griffith is on record as attaining a standing vertical jump of 12 m this means that he moved
a charge of 270nc is placed in a uniform electric field that is directed vertically upward and that has a magnitude of
an electrical point charge of 450 mc is located on the x-axis at x 800 cm a second point charge is located on the
a man pushes a 20 kg broom at constant speed across the floor the broom handle makes a 50 degree angle with the floor
an electrically charged particle having a mass of 45010-24 kgis placed in an electric external field and released from
a helicopter flies over the arctic ice pack at a constant altitude towing an airborne 128-kg laser sensor that measures
a sprinter with a mass of 80kg accelerates from 0 ms to 9 ms in 3 seca what is the runners accelerationb what is the
an irregular neutral conductor has a hollow cavity inside of it and is insulated from its surroundings an excess charge
a charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 200 cm giving
from the top of a pole 48m about the ground he was able to leave the pole with a speed of 482ms at an angle of 7
an electron is released from rest in a uniform electric field of magnitude 231 x 104 nc calculate the acceleration of
the electric field of a charge is 169e07 nc at a distance 141 cm and points away from the charge what is the sign and
a car starts from rest and travels for 47 s with a uniform acceleration of 19 ms2 the driver then applies the brakes
a potential difference of 475 kv is established between parallel plates in air if the air becomes ionized and hence
after flying for 19 min in a wind blowing 47 kmh at an angle of 17deg south of east an airplane pilot is over a town
a rock climber throws a small first aid kit to another climber who is higher up the mountain the initial velocity of
a tuning fork vibrates at concert a fa 440 hz the a string of a violin is sounded together with this tuning fork and
eddie the eagle british olympic ski jumper is attempting his most mediocre jump yet after leaving the end of the ski
a well-insulated container of negligible heat capacity contains 150g of ice at 0 degrees if 20g of steam is injected