Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
a spring has a force constant of 371 nm and an unstretched lengthof 6 cm one end is attached to a post that is free to
a crate is sliding down a ramp that is inclined at an angle of38 degrees above the horizontal the coefficient of
an aluminum glider travelling on africtionless air track at 4 ms is overtaking another glider twiceits mass on the same
a 057 kg object connected to alight spring with a force constant of 248 nm oscillates on a frictionless
more energy is lose in perfectly inelastic collisions than in ordinary inelastic collisions whathappens to this
a bat can detect small objects such as an insect whose sizeis approximately equal to one wavelength of the sound the
the drawing shows two situations in which charges are placed onthe x and y axes they are all located at the same
a toaster uses a heating wire when the toaster is turned on at22 degc the initial current is 119 a a few seconds later
suppose that blood flows through the aorta with a speed of028 ms the cross-sectional area of the aorta is 12 10-4m2a
a 108 gcube of ice at 0degc is dropped into 10 kg of water that wasoriginally at 72degc what is the final temperature
an aluminum cup contains 225 g ofwater and a 40 g copper stirrer all at 27degc a 480 g sample of silver at an initial
white light is incident on a soap film n130 in air the reflected light looks bluish because the red light lambda 670 nm
when the tungsten filament in a 60 w 120 v light bulb reaches 2010degrees c 60 w of electric power is used to produce
light of wavelength 480nm falls normally onfour slits each slit is 2mum wide and isseperated from the next slit by
there is a potential difference of 16v between the ends of a 19cmlong graphite rod that has a cross sectional area
a football player kicks a ball at angle of theta 45degree above the horizotal the initial speed of the ball in22msec
you have 34 tuning forks that oscillate at close but different frequencies what are the a maximumand b minimum number
fresh water flows through a horizontal tube of diameter 296 cm that is joined to a second horizontal tube of diameter
the drawing shows three objects they are connected by stringsthat pass over massless and friction-free pulleys the
the speed of sound in air is around345 ms a tuning fork vibrates at 610 hz above the open end of thesound resonance
an object is placed 13 cm in front of a concave mirror whose focallength is 17 cm the object is 37 cm tall determinea
a a cylindrical container with a cross-sectional areaof 652 cm2 holds a fluid of density 802kgm3 at the bottom of the
in an experiment designed to measure the speed of light a laser isaimed at a mirror that is 590 km due north a detector
a 12 h inductor carries a steadycurrent of 10 a at what rate must the current be changed to produce a 50v emf in the
which would have a higher kinetic energy an airplane travellingat the speed of sound or an airplane with half the