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a cube of material 10cm on a side is submerged in a tank ofwater it has a density of 30x103 kgm3what is the weight of
a small plastic ball of mass 555 x 10-3 kg and charge0192c is suspended from an insulating thread and hangs betweenthe
pulsars are neutron stars that emit x rays and other radiation insuch a way that we on earth receive pulses of
you and a friend are out hiking across a large flat plain and decide to determine the height of a distant mountain peak
a 65kg ice skater standing on frictionless ice throws a 15 kg snowball horizontally at a speed of 32ms at what velocity
light of wavelength 5880 nm illuminates a slit of width 068 mma at what distance from the slit should a screen be
a mouse of mass m jumps on the outside edge of a freely turning ceiling fan of rotational inertia i and radius r by
a cylindrical fishing reel has a moment of inertia of i 60 10-4 kgmiddotm2 and a radius of 40 cm a friction clutch in
a thin film of oil n 122 is located on smooth wet pavement when viewed from a direction perpendicular to the pavement
you see a bolt of lightning strike the ground exactly 37 seconds later you hear the thunder the outdoor thermometer
a how much thermal power is radiated by a light bulb when its filament is heated to 200k assume that the filament is a
a 300- goldfinch lands on a slender branch where it oscillates up and down with simple harmonic motion of amplitude
if light from a 560-nm monochromatic source in air is incident upon the surface of fused quartz n 156 at an angle of
a 1300n crate slides 15m down a ramp that makes an angle of 35 with the horizontal if the crate slides at a constant
a an ideal gas occupies a volume of 24 cm3 at 20degc and atmospheric pressure determine the number of molecules of gas
an air bubble has a volume of 150 cm3 when it is released by a submarine 100 m below the surface of a lake what is the
a 20 cm x 20cm x 90 cm block floats in water with its long axis vertical the length of the block above water is 10cm
2a a 10 kg steel ball strikes a wall with a speed of 30 ms at an angle of theta37 with the normal to the ground it
a block of copper with mass 11153 g is lowered by a string into a large pail of water when the block is totally
if the angular velocity is held constant and the radius is doubled how does the force required
a 30-kg cylinder falls vertically from rest in a very tall evacuated tube 20m above the surface of the earth1 what is
a 410g lead bullet traveling at300ms is stopped by a large tree if half the kinetic energy of the bullet is transformed
an aluminum rod is165cm long at 20degc and has a mass of 350 g if14000j of energy is added to the rod by heat what is
an organ pipe open at one end has a length of 60 cm if the speed of sound in air is 340 ms what is the lowest frequency
a spinning disc rotating at 130 revmin slows and stops 31 s later how many revolutions did the disc make during this