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What is the final tempearture when a 3.0 kg gold bar at 99 degrees C is dropped into 0.22 kg of water at 25 degrees C?
consider a uranium nucleus to be a sphere of radius r 7.4 x 10-15 m with a charge of 92e distributed uniformly
A 300 mH inductor and a 200 ohm light bulb are connected in series during a switch to a 12 volt DC power supply as shown. Sketch a graph of the current vs. time starting when the switch is closed. Show an approximate time value and final current valu..
A golfer imparts a speed of 29.6 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation.
You have a 1.99-m-long stretched string with a mass of 19.5 g. When you oscillate the string at 440 Hz, Calculate the tension in the string
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. In TMS, a small coil is placed on the scalp and a brief burst of current in the coil produces a rapidly changing magnetic field inside..
to measure the speed of light fizeau used a rotating disk with equally spaced holes through which light could pass.
Two large closely spaced parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 x 106 N/C. Determine the charge per unit area on each plate
When a proton (+1.6 x 10^-19 C) moves .10 m along the direction of an electric field of strength 3.0 N/C, what is the magnitude of the electrical potential difference between the protons initial and ending points
A pulsed laser emits light in a series of short pulses, each having duration of 24.6 ms. the wavelength of the light is 630 nm and the average power of each pulse is 4.83 mW,. Compute the energy of each pulse.
A block of ice rests across the whole of a rectangular table. A wire on which we attach a 10 kg weight surrounds the ice. Explain why the wire will go through the ice block without the ice breaking into two pieces.
A 200 ohms resistor has a current of 1.5A running through it and is connected in series with 300 ohms resistor. What is the emf of the battery
The mass of a copper atom is 3.57*10^-25 kg, and the density of copper is 8920 kg/m^3. Determine the volume of each cube
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