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If 100 grams of water (specific heat of 1.00 cal/gm deg) at 5degrees Celsius is added to 500 grams of a substance with a precise heat of .25 cal/gm deg at 20 degrees Celsius in an insulated container...what is the final temperature of the mixture?
Suppose that there is no heat gained or lost from the container.
A 95 kg man standing on a surface of negligible friction shoves a 75 g stone lying at his feet, giving it a velocity of 4.0 m/s. What velocity does the man obtain accordingly.
There is a long smooth slope and we release balls from the top of it every 1.5 s. Suppose the acceleration of the ball is 4.8 m/s2 and every ball is numbered in the releasing order.
An electron is released a short distance above the surface ofthe earth. How far below the first electron is the second
One cubic centimeter of a cumulus contains 420 water drops,which have a typical radius of 10 μm .(a) How many cubic meters of water are in acylindrical cumulus cloud of height 3.1 km and radius 0.9 km?
A nuclear power plant has a reactor that produces heat at the rate of 690 MW. This heat is used to produce 250 MW of mechanical power to drive an electrical generator. At what rate is heat discarded to the environment by this power plant? MW
A warehouse worker pushes a crate along the floor, by a force of 5.0N that points downward at an angle of 45° below the horizontal. find the horizontal component of the push.
question an aircraft has a lift-off of 120kmh. a what minimum constant acceleration does the aircraft require if it is
The radioactive isotope TI-204 decays to Pb-204 by emitting an electron. The electron may have a kinetic energy of up to 0.763 MeV. Find the momentum of the electron
A moth at about eye level is 5.9 cm in front of a plane mirror; you are behind the moth, 17.8 cm from the mirror. At what distance must you focus your eyes to see the image of the moth in the mirror, that is, what is the distance between your eyes..
What is the probability that a diatomic molecule, modeled as a harmonic oscillator, will be observed outside the classical limit of motion?
a 0.5 kg box is sliding with a speed of 6ms on a frictionless level surface toward a spring of force constant k. it
A motor has a single loop inside a magnetic field of magnitude 0.581 T. If the area of the loop is 305.0 cm2, find the maximum angular speed possible for this motor
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