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liquid water at 453k and 1002 kpa has an internal energy of 762 kjkg and a density of 890 kgm3 a what is the enthalpy
enter question herea 100g on object is suspended from a spring when 40 g are added the soring stretches an additional
1- sodium and water react according to the equation 2na 2h2ogt2naoh h2 what number of moles of h2 will be produced
a top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top the
a steel wire having a mass of 350 g and a length of 100 m is fixed at both ends and has a tension of 1010 na find the
the figure below shows a three-particle system with masses m1 25 kg m2 40 kg and m3 90 kg a what are the coordinates
during a solar eclipse the moon earth and sun all lie on the same line with the moon between the earth and the suna
a standard 100 w 120 v lightbulb contains a 940 cm-long tungsten filament the high-temperature resistivity of tungsten
please use your notes book or other source to find a relationship equation that describes the motion of a mass
a 180g air-track glider is attached to a spring the glider is pushed in 124cm and released a student with a stopwatch
a 400-kg mass is placed at 400 300 m and a 600-kg mass is placed at 300 400 m what is the moment of inertia of this
a common flashlight bulb is rated at 0300 a and 300 v the values of the current and voltage under operating conditions
two compact sources of sound oscillate in phase with a frequency of 120 hz where the speed of sound is 340 ms at a
a uniform meter stick has a 450 g mass placed at the 20 cm mark if a pivot is placed at the 425 cm mark and the meter
a 341 kg child rides a ferris wheel whose diameter is 183 m when the ride is turning at a constant rate the childs
the acceleration due to gravity becomes weaker by about three parts in ten million for each meter of increased
the 1st man to orbit the earth was soviet cosmonaut yuri gagarin on april 12 1961 his spacecraft vostok i was a sphere
a box slides down a frictionless 602 m high hill starting from rest at the bottom of the hill the box slides along a
calculate the concentration of a noncompetitive inhibitor ki29 x 10-4 m needed to yield 90 inhibition of an
what is the angle between a wire carrying 830 a and the 120 t field it is in if 500 cm of the wire experiences a
there are six samples without label write two net ion chemical reactions that you can use to identify each compounda
an airplane flying horizontally at an altitude of 183 km at a speed of 346 ms releases a packageaneglecting air
the heat of fusion of ice is 335 jg when 50 gram of ice at 0 degree c is added to 50 gramm of water at 25 degree c what
a a 0790 m long section of cable carrying current to a car starter motor makes an angle of 600deg with the earths 550
how much heat is required to change one gram of ethanol ice at 144 degrees c to ethanol vapor at 78 degrees