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the work function for platinum is 635 ev ultraviolet light of wavelength 150 nm is incident on the clean surface of a
a heat engine operating at maximum efficiency has an efficiency of 25 the temperature of the cold reservoir is 300 k
if 550 cm of copper wire diameter 100 mm is formed into a circular loop and placed perpendicular to a uniform magnetic
a solenoid 145 m long and 330 cm in diameter carries a current of 120 a the magnetic field inside the solenoid is 160
if a planet has a radius 20 greater than of the earth but has the same mass as the earth what is the acceleration due
a carpenter on a space station has constructed a 300deg ramp a rocket moves past the space station with a relative
what is the angular momentum of a figure skater spinning at 20revs with arms in close to her body assuming her to be a
suppose the force acting on a tennis ball mass 0040 kg points in the x direction and is given by the graph of fig 7-30
transverse waves with a speed of 430 ms are to be produced on a stretched string a 540-m length of string with a total
suppose you want to produce photoelectrons with kinetic energy 160ev from a copper target what wavelength of
two billiards of equal mass undergo a perfectly elastic head on collision if the mass of ball 1 was initially was
imagine that the temperature of a 430 g block of aluminum sitting in the sun increases from 273 k to 296 k by how much
the boiling point of liquid nitrogen is 773 k at atmospheric pressure what is this temperature on the celsius scale
an iron brick measuring 200 mm 20 cm 005 m is submerged in pure water hint use table 44 from your book to find the
the light bulb used in a slide projector draws a power of 480 watts when operating on 120 voltsa what is the bulbrsquos
the free-fall acceleration on mars is 37 ms2 a what length pendulum has a period of 18-s on earth cm b what length
a bat moving at 556ms is chasing a flying insect where the speed of sound is assumed to be 340ms if the bat emits a
two cars are on the highway and moving at speeds of v1 145ms and v2 702ms the second car is behind the first car and
a paddle wheel frictionally adds thermal engery to 50 moles of an ideal monatomic gas in a sealed insulated container
when the sodium salt of an organic acid is strongly heated it yields sodium carbonate if the weight ratio of the sodium
a 357-g object is attached to a spring and executes simple harmonic motion with a period of 0220 s if the total energy
a viral preperation was inactivated in a chemical bath the inactivation process was found to be first order in virus
a copper rod has a length of 14 m and a cross-sectional area of 42 10-4 m2 one end of the rod is in contact with
assume the following parameters mass of the bottom steel disc 14678 kg mass of the upper steel disc 14795 kg mass of