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when a 90 v battery is connected to a capacitor it puts 840e-4 c of charge on the capacitor when a different battery
a wood sample is obtained from a tree that originally grew in 1804 ad if the initial rate of decay in 1804 ad can be
3-nitrophthalhydrazide and luminol that are consistent with reduction of the nitro function to an amino group in
the pericarppart of a popcorn kernel is a small container of liquid water when the poppcorn is heated to about 180
a spaceship of mass m is located between two planets of masses m1 and m2 the distance between the two planets is l as
in an experiment that was measuring absorbance at 590nm i placed a barley water extract and starch in a spectrometer
25g of copper pellets are removed from a 300 degrees c oven and immediately dropped into 90 ml of water at 25 degress c
if you are given a 025 g piece of sodium metal to react with water how many moles of hcl would it take to neutralize
an electrical heating coil is immersed in 40kg of water at 21 degrees c the coil which has a resistance of 250 warms
100 joules of heat energy are transferred to 20g of mercuryby how much does the temp increasehow much heat is needed to
not all light wavelengths penetrate equally in water consequently plants that live relatively deep in the sea have
1 using equation 1 1wavelength r1n12 - 1n22 calculate n2 for these three lines4026nm n2 4471nm n2 5875 nm n22 draw a
how much heat is required to change 250 g of liquid ethanol that is at a temperature of 1587 k to a gas at 3515
a uniform magnetic field of 25 mt magnitude points into the page the wire is 14m long and straight but has a loop smack
in a graphing calculator there are four aaa batteries which together provide a potential difference of 15 v and a total
instead of using batteries a certain type of flashlight has a built in hand pump which you can squeeze to generate the
the total calories for 2 tablespoons of crunchy peanut butter that contains 6 of carbohydrate 16 of fat and 7 of
at 200degc a mainly silicon resistor has a resistance of 395 and a tungsten resistor has a resistance of 752 at this
is someone who makes an ethical decision based on enlightened self-interest worthy of more or less praise than
a gas vessel is attached to an open-ended manometer filled with a nonvolatile liquid of a density 0993 gml the
at the beginning of the economic and philosophic manuscripts of 1844 marx discusses how the philosophical critique of
a molecular orbital in a diatomic molecule that has a nodal plane containing the internuclear axis and no nodal plane
a mirror produces an image of the sun and the image is located 09800 m from the mirror the same mirror is then used to
a 5 g antacid tablet listing aluminum hydroxide aloh3 as its active ingredient requires 13860 ml of 01111 m