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A combustion experiment is performed by burnong a mixture of fuel and oxygen in a constant-volume container surrounded by a warer bath. During the experiment, the temperature of the water rises. If the system is the mixture of fuel and oxygen:
(a) Has heat been transfered?
(b) Has work been done?
(c) What is the sing of U?
If a disk rotating at 10 rad/s has a moment of inertia of 0.5 kg m^2. Then another disk with a total mass of 5 kg, What is the angular speed of the new system in units of rad/s
You exert a force of 25 N on the head of a thumbtack. What is the pressure on your thumb
A girl is jumping on a trampoline and reaches a maximum height of 3.1 meters, h=3.1m. She has a mass of m = 53kg. what is the spring constant k in N/m of the trampoline
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, Calculate the probable percent error in the length
The crankshaft in a race car goes from rest to 3060rpm in 2.1s. What is the crankshaft's angular acceleration
A wave has an angular frequency of 110 rad/s, Calculate the angular wave number and the speed of the wave
A pipe is open at both ends. The pipe has resonant frequencies of 528 Hz and 660Hz (among others). Find two possible values for the length of the pipe
A curve is banked at an angle of 30 degrees with respect to the horizontal. what is the ideal speed for a motorist to take the curve when it is covered by glare ice
A screen is placed 1.40m behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.60cm, What is the distance between the two second-order minima
An athlete starts at point A and runs at a constant speed of 7.00 m/s around a round track 250 m in diameter? Find the x component of this runner's average velocity between points A and B.
An ac generator with a frequency of 1.44kHz and an rms voltage of 21.2V is connected in series with a 1.90 kiloohms resistor, What is the power factor for this circuit
A 501g mass oscillates with an amplitude of 11.0cm on a spring whose spring constant is 23.0N/m, determine the period and max speed
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