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you and your friends are doing physics experiments on a frozen pond that serves as a frictionless horizontal surface
a door is made of uniform material of density p and has a height of h t thick w wide when the door is released from
coherent light is passed through two narrow slits whose separation is 395 mirometers the second-order bright fringe in
louise spikes a volleyball during a game at the instant the volleyball leaves her hand its height is 26 m above the
a fully suited astronaut name bill lands on newly discovered plant called new and goes on an exploration walk on the
when 0250 grams of a polymer were dissolved in 229 ml of benzene at 216 degrees c the osmotic pressure was found to be
a cylindrical flask is fitted with an airtight piston that is free to slide up and down as shown in the figure below a
when 96 g of an unknown non-electrolyte is dissolved in 500 g of carbon tetrachloride the boiling point increased to
calculate the boiling point in degrees c of a solution made by dissolving 320 g of naphthalene c10h8 in 811 g of
you measure wavelength divided by 2 to be 70cm the temperature in the lab is 22 degrees celsius what is the frequency
a woman with mass of 58 kg stands at the rim of a horizontal table having a moment of inertia of 430 kgm2 and a radius
just an instant before reaching the very bottom of a semicircular section of a roller coaster ride the automatic
an aqueous solution made by dissolving 168 mg of an unknown compound a nonelectrolyte in enough water to make 5000 ml
in biochemistry laboratories solutions of sucrose table sugar c12h22o11 are used in high speed centrifuges to separate
a 10000kg car experiences a net force of 9500n while decelerating from 300ms to 233ms how far does it travel while
the days on mars and earth are of nearly identical length earths mass is 935 times marss mass earths radius is 188
determine the first three normal-mode frequencies for a pipe of length l that is closed at both ends use the results of
how many grams of solid aluminum sulfide can be prepared by the reaction of 110 g of aluminum and 164 g of sulfur and
a camera is supplied with two interchangeable lenses whose focal lengths are 350 and 1500 mm a woman whose height is
a 558 kg person rides a sled 15 meters along a hillside that is inclined at 25 degrees above the horizontal if the
a block of mass 3000 g on the end of spring undergoes simple harmonic motion with a frequency of 650 hza what is the
you come down with a case of indigestion this condition is caused by over excretion of hydrochloric acid in the
collisions between atomic and subatomic particles are usually perfectly elastic in one such collision a proton
a loop of wire has the shape shown in the drawing the top part of the wire is bent into a semicircle of radius r 023 m
an object is dropped from rest from a height of 374e6 m above the surface of the earth if there is no air resistance