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an object is located 130 cm in front of a convex mirror the image being 700 cm behind the mirror a second object twice
a solution of the weak base aniline c6h5nh2 in 250 ml of water requires 2567 ml of 0175 m hcl to reach the equivalence
a skater initially turning at 36 revsec slows down and stops in 42 secondsa what is her angular decelerationb how many
ethylene oxide which is used as a rocket propellant is formed from the reaction of ethylene gas with oxygen gasa after
a star with the same mass and diameter as the sun rotates around a central axis with a period of 288 days suppose that
after falling from rest from a height of 260 m a 11 kg ball rebounds upward reaching a height of 160 m if the contact
the hydrolysis of sucrose to fructose is first order in sucrose with a half-life of 23e03 s at some temperature1what
a lighted candle is placed 37 cm in front of a diverging lens the light passes through the diverging lens and on to a
an athlete needs to lose weight and decides to do it by pumping irona how many times must an 850 kg weight be lifted a
how do we equilibrate a pipette with the solution we are measuring why should we equilibrate it with the soultion we
in a single-slit experiment light of wavelength 500 nm is used to produce a diffraction pattern on a screen 40 m away
two towboats are pulling a plane in the hudson river towboat 1 pulls with a force v1 6100n at an angle of 1 410o
a stock solution has a concentration of 50 what is the final concentration if we mix 1 part of the solution to 4 parts
a mad doctor believes that baldness can be cured by warming the scalp with sound waves his patients sit underneath the
a friend of yours is loudly singing a single note at 380hz while racing toward you at 265ms on a day when the speed of
an organic compound contains 667 c 112 h and 221 o by mass the compound boils at 796c 100c and 0970 atm the vapor has a
a 160-m-long string is under 220n of tension a pulse travels the length of the string in 520ms what is the mass of the
two narrow slits are illuminated by a laser with a wavelength of 549nm the interference pattern on a screen located x
dry air is 78 nitrogen gas 21 oxygen gas and 09 argon gas these gases can be separated by distillation after the air is
what is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 409m
a simple magnifier of refractive power 150 d is used to observe a beetle on a students desk if the image of the beetle
a small motor is mounted on the axis of a space probe with its rotor the rotating part of the motor parallel to the
what spectral features including carbon spectra ir spectra proton spectra and mass spectra differentiate benzoic acid
what volume of hydrogen gas at stp is required for the complete reaction of 500 g of nitrogen in the following reaction
a car backs out of a driveway in front of a fire truck the driver of the fire truck takes 018s to hit the brakes the