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a simple pendulum has a length of 070 m and a mass of 075 kg the amplitude of oscillations of the pendulum is 300 cm
300 ml of 010 m cano32 and 150 ml of 020 m na3po4 solutions are mixed after the reaction is complete which of these
you have a small electromagnet that consumes 350 w from a residential circuit delivering 110 v at 600 hz using your ac
an airplane propeller is 308 in length from tip to tip and has a mass of 152 when the airplanes engine is first started
a mass m1 899 kg at rest on a horizontal frictionless surfaceand connected to a wall by a spring with k 700n m
if light is measured traveling through some medium at 090c where c represents the speed of light in a vacuum what is
a 600 kg block starts from rest and slides down a frictionless surface incline when the block has slid a distance 200 m
a 60 g ball is tied to the end of a 50 cm --long string and swung in a vertical circle the center of the circle as
the radius of the earths very nearly circular orbit around the sun is 15x1011a find the magnitude of the earths
a voltaic cell consists of an alal3 half-cell and a agag half-cell calculate ecell when ag 000665 m and al3 06273 m
what is the value of the equilibrium constant at 25 oc for the reaction between the pair mns and agaq to give ags and
a cylinder with radius r and mass m has a density that increases linearly with distance r from the cylinder axis p ar
a sealed glass jar has a small amount of water on the bottom the rest of the volume in the jar is taken up by helium
a pendulum consists of a 31 kg stone swinging on a 42 m string of negligible mass the stone has a speed of 79 ms when
a 52 cm times 38 cm razorblade is placed on the surface of a beaker of water though the density of the razorblade is
for the reaction no2 o3 n2o5 the activation energy is 18kjmol and the overall delta e is -136kjmol how many times
a 150 grinding wheel is in the form of a solid cylinder of radius 0140 part a what constant torque will bring it from
you are in a mountain range with atmospheric air pressure of 520 mmhg and you wish to boil some eggs what is the
a steel ball density 7860kgm3 with a diameter of 68 cm is tied to an aluminum wire 88 cm long and 20 mm in diameter
if the volume of the original sample in part a p1 722 torr v1 340 l changes to 570 l without a change in the
a charged capacitor is connected to a resistor and a switch as in the figure below the circuit has a time constant of
a family wishes to purchase a heat pump for their home the get-it-cheap co sells a heat pump that has an operating
calculate the heat of formation of magnesium oxide mgo data given are mgs 2hcl aq gt mgcl2 aq h2 g h 462 kjmol mgos
a lamp r 146 an electric heater r 24 and a fan r 49 are connected in parallel across a 122 v linea what total
a sample of ideal gas at room temperature occupies a volume of 340 l at a pressure of 722 torr if the pressure changes