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Problem: An insulated beaker with negligible mass contains a mass of 0.200 kg of water at a temperature of 84.3 C.
Part A: How many kilograms of ice at a temperature of -11.0 C must be dropped in the water to make the final temperature of the system 34.3 C?
Please show all work and clearly explain.
How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on? Explain how many revolutions would the wheel have made during this time?
When a slice of buttered toast is accidentally pushed over the edge of a counter, it rotates as it falls. Determine the argest angular speeds that cause the toast to hit and then topple to be butter side down
A negative charge -0.550 µC exerts an upward 0.600 Newton force on an unknown charge 0.210 meter directly below it. Find what is the unknown charge
a 6cm diameter horizontal pipe gradually narrows to 4cm. whenwater flows throught this pipe at a certain rate the
A large closed bag of plastic contains 0.10 m3 of an unknown gas at an initial temperature of 10°C and at the same pressure as the surrounding atmosphere, 1.0 atm. How many moles of gas are in the bag
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.6 m/s at ground level. For what time interval is the rocket in motion above the ground
A baseball pitcher delivers a fastball that crosses the plate with an angle of 5.77 degrees relative to the horizontal and a speed of 87.9 mph. What is the magnitude of the impulse received by the ball
a radiator has an emassivity of .90 and its exposed area is 1.23 m^2. What is the heat flow rate from the radiator
A person stands in a stationary canoe and throws a 5.20 kg stone with a velocity of 7.85 m/s at an angle of 35.0 degrees above the horizontal. The person and the canoe have a combined mass of 105kg.
A cylindrical disk has volume 8.98*10-3 m3 and mass 7.98 kg. The disk is floating on the surface of some water with its flat surfaces horizontal. The area of each flat surface is 0.636 m2.
A 500-kg package slides 1.50 m down a long ramp that is inclined at 24.0 degree below the horizontal. The coeficient of kinetic friction between the package and the ramp is uk+0.310.
a piece of copper wire has a resistance per unit length of 5.50 10-3 ?m. the wire is wound into a thin flat coil of
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