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a 402 g piece of solid iron fes heated to 105 is dropped into 1000 g of water at 542 given that the specific heat
500 kg satellite moves in a circular orbit of 48 x 106 m above the surface of the earth what is the orbital speed of
a steel column that has a diameter of 10 cm supports a mass of 1000 kg resting on it what is the stress produced on the
petes pizza parlor has 799 lbs of pizza sauce if the pizza sauce is spread onto large pizza crusts 119 mm thick with a
an 8855 kg person is half way up a uniform ladder of length 3135 m and mass 2017 kg that is leaning against a wall the
a uniform rectangular 8725 kg refrigerator with height h 2089 m and width w 1115 m is pushed at a constant velocity
the single atom of an isotope does not have a arelative atomic mass b atomic number cmass number daverage atomic
a light ray in air is incident on a water surface at an angle of 277 with respect to the normal to the surface
a thin piece of metal foil is 1074 ft long and 523 inches wide the density of the metal is 8526 gcm3 and the specific
a uniform disc of radius 30 cm and mass 12 kg is pivoted so that it is free to rotate about an axis through its center
a horizontal spring is lying on a frictionless surface one end of the spring is attaches to a wall while the other end
62 ml of 17m solution is diluted to a volume of 208ml a 104ml portion of that solution is diluted using 141ml of water
a 1 1650 kg car traveling initially with a speed of 25000 ms in an easterly direction crashes into the back of a 9 1000
a plank 200 cm thick and 149 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the
a ground state h atom absorbs a photon of light that has a wavelength of 973 nm it then gives off a photon that has a
the only force acting on a particle is conservative force if the particle is at point a the potential energy of the
this demonstration is more complicated because it involves a vector for a rotating wheel the direction of the angular
a heavy mass in free fall does not fall faster than a light mass the extra weight is compensated for by extra
the period of a satellite at an altitude of 200 km above the surfce of the earth is 20 hours what is the period of a
how much thermal energy is required to take a 130 g block of ice at -10 degrees celsius and heat it to steam at 120
newtons second law could be stated either as or as force equals time rate of change of linear momentum for simple
a 5 gallon tank of air at 25 degrees c and 31 psi is connected to a 17 gallon tank of air at 25 degrees c and 12 psi
close a door by pushing on the doorknob close the door again using approximately the same force but applying it 5
a rope under a tension of 90n and fixed at both ends oscillates in a second-harmonic standing wave pattern the