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a person drives a car at a constant speed of 90 kmh along a straight line from point a to point b and then drives back
three student chemists calculated 500 ml of 100 m naoh in separate styrofoam cups calorimeters brett added 500 ml of
a tank whose bottom is a mirror is filled with water to a depth of 150 centimeter a small fish floats motionless 100
a spherical yo-yo is released from rest 12 meter above the ground the yo-yo unwinds as it fallsdetermine the yo-yos
a tuning fork generates sound waves with a frequency of 246hertz the waves travel in opposite directions along a
the outside mirror on the passenger side of a car is convex and has a focal length of -54 cm relative to this mirror a
in a periodic table the element hydrogen is occasionally grouped with the alkali metals and sometimes with the halogens
a sample of helium behaves as an ideal gas as it is heated at fix pressure from 273 k to 353 k if 250 joule of work is
gas in a container is at a pressure of 14 atm and a volume of 30 m3a calculate what is the work done on the gas if it
ferrophosphorus reacts with pyrite producing iron ii sulfide as well as a compound that is 2787 p and 7213 s by mass as
the nitrate stock standard utilized in this experiment is 1000ppm no3- prepared by dissolving 163mg of dried kno3 in
a horizontal 810-n merry-go-round of radius 140 meter is started from rest by a fix horizontal force of 55 n applied
a 2-dimensional infinite corral is square with edge length l 150 pm a square probe is centered at xy coordinates 02l
two spherical shells have a ordinary center a 16x10-6c 10 charge 0is spread consistently over the inner shell which has
a solid uniform disk of radius 0250 meter and mass 440 kilogram rolls down a ramp of length 500 meter that makes an
a 25 meter nylon fishing line used to hold up an 80 kilogram fish has a diameter of 16 millimeter determine how much is
oxygen ions in space- the far ultraviolet spectroscopic explorer fuse satellite has been analyzing the spectra of
a 240 kilogram gold bar at 270degc is located in a large insulated 0800 kilogram glass container at 150degc with 200
liquid flows into a tank at 10 m2s and flows out of the tank at 3m2s find at what rate m3s does volume accumulate in
a capacitor with initial charge q0 is discharged through a resistora in terms of the time constant tau find how long is
a capacitor has a capacitance of 21410-8 f in the charging process electrons are removed from one plate and placed on
the average velocity of blood flow in the aorta in a resting person is 20 cms the radius of the aorta is 12 centimeter
assume that 2419 g of ice at -75degc is placed in 7199 g of water at 996degc in a perfectly insulated vessel compute
during july 1994 the comet shoemaker-levy 9 smashed into jupiter in a spectacular fashion the comet actually consisted
at a recent rock concert a db meter registered 110 db when located 200 meter in front of a loudspeaker on the stagea