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two campers carry their gear 907kg on a light rigid horizontal pole whose ends they support on their shoulders 183m
a diffraction grating of 3400 slits per centimetre is utilized to analyze the spectrum of mercurya discover the angular
a hydrogen atom is in the 3d energy state decide the following1 the principle quantum number and the energy of the
compute the debroglie wavelength and the orbital radius of an electron in the n 4 energy state of a hydrogen atom
assume that the value of n in a radioactive transition in hydrogen changes only with unity as is suggested by the
the attractive force between proton and an electron due to gravity is gmpme r2 where me 09x10-30 kg mp 167x10-27 kg
people immersed in strong unchanging magnetic fields occasionally report sensing a metallic taste some investigators
an air puck of mass 29kg is tied to a string and allowed to revolve in a circle of radius 14m on a frictionless
1 an object is placed 12 cm in front of a concave mirror the mirror forms a real inverted image that is the similar
a light ray is incident from air onto the surface of a very quiet lake if the angle of refraction is 26deg and the
at the beginning of the explanation for this problem they set up a ratio among the electric field of the smaller sphere
a person weighs 842 n in air and has a body fat percentage of 151a what is the volume of this persons bodyb what is the
1- a professional skier reaches a speed of 56 ms on a 30degree ski slope ignoring friction what was the minimum
in a single-slit diffraction pattern on a flat screen the central bright fringe is 17 cm wide when the slit width is 39
hold a pocket mirror at almost arms length from your face and note the amount of your face you can see to see more of
consider a bright star in our night sky suppose that its power output is 600 x1028 w about 150 times that of the sun
a flat screen is located 094 m away from a single slit light by a wavelength of 518 nm in vacuum shines during the slit
whats your normal body temperature it may not be 986degf the oft-quoted average that was determined in the nineteenth
in a youngs double-slit experiment the seventh dark fringe is located 0029 m to the side of the central bright fringe
a snow maker at a resort pumps 150 kg of lake water per minute and sprays it into the air above a ski run the water
what is the average pressure on the soles of the feet of a standing 807-kg person due to the contact force by the floor
light is refracted through diamond from air if the angle of incidence is 30deg and the angle of refraction is 12deg
three people are carrying a horizontal ladder 400m longnbsp one of them holds the front end of the ladder and the other
two polarizing sheets are placed together with their transmission axes crossed so that no light is transmitted a third
a standing wave interference pattern is set up by radio waves among two metal sheets 380 ma part that is the shortest