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1 a solution has a ph 500 so what is its hydronium-ion concentration what is its hydroxide-ion concentration is this
the orbit of halleys comet around the sun is a long thin ellipse at its aphelion point farthest from the sun the comet
a projectile with mass of 372 kg is launched straight up from the earths surface with an initial speed vi what
air at 35degc and 1 bar enters a duct with a mass flow rate of 1 kgs saturated liquidwater at 20degc is sprayed with a
in 250 words describe the following and make sure you use apa references and citationsa how an electromagnetic wave is
a light bulb is a connected to a battery by 2 copper wires of equal lengths but different thickness a thick wire
benzene boils at 801 degc calculate the boiling point of benzene in the a farenheit scale and b kelvin
a block of mass 2 kg moves on a frictionless incline none of the forces on the block are shown its initial velocity is
1 list five functions of a reservoir2 as a general rule what is recommended reservoir volume capacity3 why is it
what happens to a wave when it reflects against a fixed boundary comment on the direction of motion and the orientation
describe an imaginary process that violates both the first and the second laws of
a00230kg bullet moving horizontally at500ms embeds itself into an initially stationary 0500 kg block what is their
what type of material generally makes a better conductor of heat a solid or a gas briefly
why does temperature not change when undergoing a phase change from solid to liquid as in the case of melting ice even
an experiment to measure the speed of light uses an apparatus similar to fizeaus the distance between the light source
a car approaches you at 50 kmh the driver turns on the headlights from your point of view the light from the headlights
a lamp in a childs halloween costume flashes based on annbsprcnbspdischarge of a capacitor through its resistance the
a jumper leaves the ground with an initial vertical velocity of 38 mswhenhiscenterof mass is 095 m above the ground
a clear optical window made out of plastic n14 is coated with a hard antiscratch coating having n 18 what should be
a 566 hz sound wave travels through a substancethe wavelength of the sound wave is measured to be 214 centimeters what
a 487 gram silver bullet traveling at 912 mph strikes an armor plate and comes to a stopnbspif all its energy is
a long nonconducting cylinder radius 12 cm has a charge of uniform density 5 ncm3 distributed throughout its
an electron with electric charge of 1610-19 c falls through a potential difference of 56 kv in the vacuum of an x-ray
four particles each of mass 020 kg are placed at the vertices of a square with sides of length 050 m the particles are
1 what are some of the reasons that wind-energy capacity is growing at 30-40 per year in europe at this rate how long