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An 87 g piece of metal is heated to 98°C and located into 200 mL of water insulated at 20°C. If the equilibrium temperature is 26.64.
Determine the heat gained by the water?
Determine the specific heat of the metal.
The secondary colors, cyan, magenta, and yellow, can each be obtained by subtracting a color from white light. Which primary color is subtracted in each case
a 13.4-kg block rests on a horizontal table and is attached to one end of a massless horizontal spring. by pulling
A boat capable of making 6.0 km/h in still water is utilized to cross a river flowing at speed of 4.0 km/h. The boat is directed (from the perpendicular to the shore) in such a way that its resulting motion is straight across the river.
A +1 uC charge is held 10 cm directly above the origin. A -1 uC charge is held 5 cm directly to the right of the origin. What is the electric potential at the origin
A 0.954-kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. What is the average current supplied to the car's motor
A proton moving at v1 = 7.9Mm/s collides elastically and head-on with a second proton moving in the opposite direction at v2 = 8.6Mm/s. Find the velocity of the first proton after the collision
A football is thrown toward a receiver with an initial speed of 20 m/s at an angle of 30.0o above the horizontal. At that instant, receiver is 20 m from the quarterback. In what direction and with what constant speed must the receiver run in order..
suppose a star the size of our sun but of mass 8.0 times as great were rotating at a speed of 1.0 revolution every 11
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.8 centimeter, the other 1.1 centimeter. Evaluate the magnification of your microscope
a 15 m beam is supported (hinged supports) at both ends and is loades with a 50 n weight 4 m from one end and a 100 n weight 8 meters from the same end. what are the forces at the two supports
The avarage intensity of solar radiation that falls normally on surface just outside the earth's atmosphere is 1.4 kW/m^2. What radiation pressure is exerted on this surface
calculate stopping distance from 62 mph for a vehicle with a tireroad friction coefficient equal to 0.6 0.8 and 1.0
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