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julie throws a ball to her friend sarah the ball leaves julies hand a distance 15 meters above the ground with an
a rocket with mass 1000kg accelerates upwards at a rate of 20ms2a how long does it take before it is going at the speed
a charge of -38 times 10-9 c is at the origin and a charge of 81 times 10-9 c is on the x-axis at x 3 m at what
a car starts from rest at a stop sign it accelerates at 46ms2 for 70s coasts for 23s and then slows down at a rate of
a car is initially 40km south of a gas station and is moving with a constant speed of 55kmh due north a truck is
on her way to school a child discovered that her coin is missing and there is a hole in her pocket she turned back and
a flat circle of radius 17 cm is placed in a uniform electric field of magnitude 62 102 nca what is the electric flux
you used 32 grams of lime away solution in a titration the titration required 1806 ml of a koh solution which had a
with a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm you use micrometer
1 calculate the freezing point of a solution containing 0600kg of chcl3 and 420g of eucalyptol c10h18o2 what would be
john measured the thickness of a book using a measuring stick he obtained the following values in inches 238 236 258
in a uniform electric field of magnitude e the field lines cross through a rectangle of area a at an angle of 770deg
after catching the ball sarah throws it back to julie however sarah throws it too hard so it is over julies head when
what is the ph of the final solution when 25 ml of 0022 m hcl has been added to 35 ml of 040 m hcl at 25 deg
write balanced chemical equations for all reactions in the sequence water and no2 g are produced in the first step1 cus
calculate the ph of 0515 l of a 0210 m nh4cl and 0210 m nh3 buffer before and after the addition of the following
the field just outside a 390 cm radius metal ball is 255 102 nc and points away from the ball what charge resides on
firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens because this light generation is an
the wings of some beetles have closely spaced parallel lines of melanin causing the wing to act as a reflection grating
2k cl2 2kclhow many grams of kcl are produced from 250 g of k and excess cl2how do i begin to write this
light from a sodium lamp lamda589 nm illuminates two narrow slits the fringe spacing on a screen 150 cm behind the
an initial mixture of nitrogen gas and hydrogen gas are allowed to react in order to reach equilibrium by the following
you need to use your cell phone which broadcasts an 828 mhz signal but youre in an alley between two massive
you are asked to prepare a standard solution of 100 mm of valine at ph 535 for a biochemistry experiment the pi of
a sheet of glass is coated with a 500nm -thick layer of oil n 142a for what visible wavelengths of light do the