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A 23.5 kg gold bar at25.5°C is placed in a large,insulated 0.800 kg glass container at 15.0°C with 2.00 kg ofwater at 25.0°C. Calculate the final equilibrium temperature.
A rock of mass 42 kg accidentally breaks loose from the edge of a cliff and falls straight down. What is the magnitude of the acceleration of the rock
A 130-g baseball, moving along the x-axis with speed 29.0 m/s strikes a fence at a 45 degree angle and rebounds along the y-axis with unchanged speed. Give x and y components of its change in momentum.
A vertical scale on a spring balance reads from 0 to 225. The scale has the length of 11.5 from the 0 to 225 reading. A fish hanging from the bottom of the spring oscillates perpendicularly at a frequency of 3. Ignore the mass of the spring, what ..
One of the weapons considered for the "Star Wars" antimissile system is a laser that could destroy ballistic missiles. What laser beam intensity will produce such a field
A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.6 wide and 6.0long. evaluate the capacitance of this capacitor
If the weight of a room full of water is so great, why don't the first floors of houses built over basements all collapse as flooded to the ceiling.
If the heat is supplied by a stove burner at the rate of 2.0 \rm kW, how long will it take to heat the pan
A 4 kg block is acted upon by three horizontal forces. 10n (to left) 5n(short arrow to right) 25n to right. what is the net horizontal force acting on the block? what is the horizontal acceleration of the block?
How much force acts on one surface of a rectangular bedroom wall that is 2.20 m by 3.20 m when atmospheric pressure is 1.00x 10^5 N/m^2
4.38 grams of diatomic oxygen (O2) in a 1.75 liter container creates a pressure of 315,000 Pascals. find the root-mean-square velocity of the molecules
Calculate the energy of the electron in the ground state of double ionized lithium, which has an atomic number Z = 3
Unpolarized light with an intensity of 980 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
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