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A cup with mass 4.1 kg has been sitting in a room with a temperature of 23 oC for a long time. A person pours 916 grams of water with a temperature of 47 oC into the cup. After a while, the cup and water reach thermal equilibrium with a temperature of 40 oC.
Calculate the specific heat of the cup if the specific heat of water is 4186 J/kgoC.
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 84.0 cm from her eyes, How far away is the poster actually located
A bird flies 3.05 km due west and then 3.26 km due north. Another bird flies 1.03 km due west and 1.16 km due north. Determine the angle with respect to the 2nd bird's displacement vector
Calculate the velocity a spherical rain drop would achieve falling from 5.00 km, in the absence of air drag
How much work did the movers do (horizontally) pushing a 190-{rm kg} crate 11.2 m across a rough floor without acceleration, if effective coefficient of friction was 0.60.
A trapeze artist performs an aerial maneuver. While in a tucked position, what is her rotational speed
Consider two concentric thin wall steel tubes, the larger one closed at the bottom and the inner one open. What must be the relationship between the radii of the tubes
a one pound weight is released 3 feet off the ground. at the same time a two pound weight is released 5 feet off the
A car goes 13 miles east, then due North ending up 25 deg North of East from its initial position. How far due North did it travel
Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, what is the expected angle of refraction in sheet 3
Imagine holding the above plastic block under water. When released, what is the upward acceleration of the block
An electron of kinetic energy 1.56 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 21.8 cm. determine the circling frequency
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