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A 0.70kg piece of lead at a temperature of 160C is dumped into 800mL of water at a temperature of 22C
Part A What's the final equilibrium temperature? Express your answer using two significant figures.
Part B How much heat flowed in this process? include the appropriate units.
A 2.00 meter long, straight rod is 1.00 mm in diameter an is made of pure copper (specific gravity 8.93). What is the potential difference between the ends on the wire
A guitar string is 90.0 cm long and has a mass of 3.23g. find the frequencies of the fundamental and first two overtones
Unpolarized light with an intensity of 650 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
A planet Z has a hole bored in it at its equator, and a shaft of light from it's star goes straight down that hole to the bottom, what is the circumference and radius of planet Z
An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1350 m/s, How far does the particle travel before hitting the tube wall
While looking through the Mt. Palomar telescope, you discover a large planetary object orbited by a single moon. calculate the density of Planet Hephaestus
A hydrogen atom has a radius of about 0.05 nm. (a) Estimate the uncertainty in any component of the momentum of an electron confined to a region of this size. in kg · m/s (b) From your answer to (a), estimate the electron's kinetic energy in three di..
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 56° C. What is the temperature coefficient of resistivity
A stone with a mass of 0.800 is attached to one end of a string 0.700 long. The string will break if its tension exceeds 65.0. Find the maximum speed the stone can attain without breaking the string
A proton moves perpendicular to a uniform magnetic field at a speed of 2.00 107 m/s, Determine the magnitude and direction of the field
A uranium and iron atom reside a distance R = 51.10 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized, What is the magnitude of the force on the electron from the uranium ion
A rock is thrown from the top of a 30 m building at an angle of 47° above the horizontal. If the horizontal range of the throw is equal to the height of the building, with what speed was the rock thrown
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