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an airplane on a carrier is designed so that the speed of the air below the wing is the air speed v of the plane and
assume the earths average temperature is 10 degrees c venus is hit by a meteorite and a cloud of dust surrounds the sun
in each of the four scenarios to the right a large bat lets out a short burst of ultrasonic sound which the smaller bat
a weather emergency siren is mounted on a tower 117 meters above the ground on one hand you would like to make the
a particular coal contains 26 sulfur by mass when the coal is burned it produces so2 emissions which then reacts with
a solid disk with m600kg and a diameter of 480cm is to be turned from rest through 120 revolutions in 600s calculate
a medical x-ray beam has wavelength 134nm a whats the energy of one photon in this beam b how many photons are in a
a 300n force is being applied to one end of a 600cm long rigid bar at an angle of 30 degrees the other end of the bar
a sample of 450 mg a perfect gas fills a volume of 3200 cm3 at a pressure of 256torr and at a temperature of 298 k
a solid block of copper p 8920 kgm3 with a volume of 02 m3 is submerged in watera what is the buoyancy force on the
a moving 310 kg block collides with a horizontal spring whose spring constant is 392 nm the block compresses the spring
an unknown compound containing only carbon and hydrogen was burned in excess oxygen when 8480 grams of the compound was
if one of the crystal faces is matted flat or reflecting draw a picture and show how the x-rays travel reflect and
when 1 mol of graphite turns into 1 mol diamond at a pressure of 50 atm what is the value of the
during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 375 rads find the angular
a 31 kg bundle starts up a 30deg incline with 178 j of kinetic energy how far will it slide up the incline if the
a 1kg non-stretch balloon fabric can form a spherical balloon with a maximum radius of 5m it is attached to a 2kg
a barrel contains a 0110m layer of oil of density 700kgm3 floating on water that is 0210m deep what is the gauge
a wistle frequency 594 hz is essentially a tube with one end open if the 500 hz sound is the 1st harmonic what is the
in a two-slit interference pattern the intensity at the peak of the central maximum is izero iizero 0772 if this helps
two vehicles approach an intercetion at right angles and collide if vehicle 2 has a mass of 600kg vehicle 1 has a mass
the density of ice is 917 kgm3 and the density of sea water is 1025 kgm3 a swimming polar bear climbs onto a piece of
an arbitrary mass of 0200 kg is connected to a light spring with force constant 5 nm and is free to oscillate on a
sodium hydroxide naoh has a lattice energy of -887 kjmol and a heat of hydration of -932 kjmolhow much solution could