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Q1. Brass is an alloy made from copper and zinc. A .59 kg brass sample at 98 C is dropped into 2.8 kg of water at 5 C. If the equilibrium temperature is 6.8 C, what is the specific heat of the brass?
Q2. Eight lights are associated in parallel to a 105 V source by two leads of total resistance 2.3. If 240 mA flows during each bulb, what is the resistance of each?
Q3. A 65Kg ice skater pushes off his partner and accelerates backwards at 1.3m/s^2. If the partner accelerates in the opposite direction at 2.0m/s^2, what is mass of the other skater?
Compute gauge pressure of the flowing water
When she gets off the ride, she uploads the scale readings to a computer and creates a graph of scale reading versus time. Note that graph has a minimum value of 519 rm N and a maximum value of 666 rm N.
What is the greatest amount through which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass.
A pipe open at one end has a fundamental frequency of 256 Hz. A second pipe,identical to first pipe, is shortened by cutting off a portion of the open end. When both pipes vibrate at their fundamental frequencies, a beat frequency of 12 Hz is heard..
As a function of time t, force component Fx that acts on a 3.00 kg ice block that can move only along the x axis. At t=0, the block is moving in positive direction of the axis, with a speed of 3.0 m/s. what are its (a) speed and (b) direction of trav..
One displacement vector A has magnitude of 2.78 km and point due north. Another displacement vector B has a magnitude of 7.40 km and also points due north. Provide diagrams and calculate the magnitude and direction of A+B, B-A, A-B.
Determine an average acceleration in coordinates with x-axis
The valuable coefficient of kinetic friction
What is rms speed of the atoms at temperature
Displacement d2 is in the xz plane 30° from the positive direction of the x axis, has a positive z component, and has magnitude 1.10 m.
What is resultant force
What is acceleration of an object sliding down to plane
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