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a rotating door is made from four rectangular glass panes as shown in the figure the mass of each pane is 551 kg a
a small spherical cavity of radius r is made in a large electrics a dielectric material of constant polarization p
in the figure below block 1 of mass m1 slides along an x axis on a frictionless floor with a speed of v1i 240 ms then
a wave on a string has a speed of 331 ms if the tension in the string is 143 n and its length is 18 m what is the mass
a 40m deep swimming pool measures 28m by 11m its filled with fresh water what force does the water exert on the bottom
a think disk of radius r carries a surface charge sigma it rotates with angular frequency omega about the z axis which
a point source of light illuminates an aperture 200 away a 150 -wide bright patch of light appears on a screen 200
suspend an ideal spring vertically from a ceiling and attach an object to the other end and then slowly lower the
two thin lenses with a focal length of magnitude 195cm the first diverging and the second converging are located 146cm
when a water gun is fired while being held horizontally at a height of 100 m above ground level the water travels a
a boy kicks a football with an initial velocity of 280 ms at an angle of 3000 above the horizontal what is the highest
two spacecraft carrying identical pendulum gravity meters have landed on mars one at the equator and one at the north
the flowmeter shown in the figure measures the flow rate of water in a solar collector system the flowmeter is inserted
a laser emits a monochromatic beam of wavelength lambda which is reflected normally from a plane mirror receding at a
you irradiate some tumor cells with x rays in a pure nitrogen atmosphere and you find that 10 of the cells survive a
a heat engine operating between energy reserviors of 11994 oc and 46275oc has 3502 of the maximum possible efficiency
662 kev photons are emitted as a result of the deay of 137cs the photon undergo compton scatteringi what is the minimum
the first-order principal maximum produced by a grating is located at an angle of 173 degrees what is the angle for
calculate the smallest possible volume of a 1 f capacitor using dielectric teflon 21k and a plate thickness of 001 mm
a 016 kg block oscillates back and forth along a straight line on a frictionless horizontal surface its displacement
in the figure above the mass to the spring is 02 kg the springs constant is 60 nm the mass is stretched to a position
a hot air balloon is ascending straight up at a constant speed of 690 ms when the balloon is 130 m above the ground a
a block of mass 71 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 410 n at an
an iron bar of mass 037 kg slides down a frictionless incline 067 m high at the bottom of the incline it collides and
the electronic spectrum of the molecule butadiene can be approximated using the one dimensional particle in a box if