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when four people with a combined mass of 290 kg sit down in a car they find that the car drops 050 cm lower on its
a single slit has a width of 18 x 10-6 m and is used to form a diffraction pattern find the angle that locates the 2nd
three moles of an ideal monatomic gas expands at a constant pressure of 210 the volume of the gas changes from
the total area of an airplanes wings is 400m2 and its weight is 490kn the density of air is 13kgm3 calculate the
in a youngs double-slit experiment the 7th dark fringe is located 0029 m to the side of the central bright fringe on a
consider a steel container that can hold a maximum of 02 m3 of ethanol at anbsp temperature of 30degc if the
a motorcycle and 580 kg rider accelerate at 28 ms2 up a ramp inclined 10deg above the horizontala what is the magnitude
a wheel is disconnected from a motor and come to rest from 15000 rpm because of a 100 mmiddotn frictional torque if the
the length of a simple pendulum is 077 m and the mass of the particle the bob at the end of the cable is 025 kg the
assume that a 900 w light bulb radiates all its energy as a single wavelength of visible lighta estimate the electric
a wooden raft has a mass of 90 kg when empty it floats in water density 1000 kgm3 with 67 of its volume submerged what
a 059 kg object connected to a light spring with a force constant of 212 nm oscillates on a frictionless horizontal
the potential energy of a 5x10-6c charge decrease from 017j when it is moved from point a to point b what is the change
an 18 mm wide diffraction grating has rulings of 710 lines per mm light is incident normally on the grating
a radar transmitter contains an lc circuit oscillating at 210 1010 hza for a one-turn loop having an inductance of 360
a uniform plank 100 m long and weighing 200 n is supported horizontally by a brick at one end and an egg at the other a
a certain star is 980 light-years awayhow long would it take a spacecraft traveling 095c to reach that star from earth
an object is placed 100 cm in front of a lens of focal length 20 cm a second lens is placed 35 cm beyond the first this
a 158m--long fm antenna is oriented parallel to the electric field of an em wavehow large must the electric field be to
red light from three separate sources passes through a diffraction grating with 600times105 linesm the wavelengths of
a 165 kg bowling trophy is held at arms length a distance of 068 m from the shoulder jointwhat is the magnitude of the
a lucite planoconvex lens has one flat surface and one with r 163cm it is used to view an object located 610cm away
rays of the sun are seen to make a 356 angle to the vertical beneath the waterat what angle above the horizon is the
an astronaut on a spaceship traveling at 075c relative to earth measures his ship to be 29m long on the ship he eats
an equilateral triangle 100m on a side has a 100-kg mass at one corner and a 250-kg mass at the each of the other two