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Acetylene and oxygen are drawn from pressurized storage tanks and mixed together in an oxyacetylene torch in a ratio of 5.00 parts of oxygen per 1 part acetylene on a volume basis.
This mixture flows reversibly through the torch from 0.140 MPa, 20.0°C, to atmospheric pressure at 173°C, at which point it is ignited by the flame.
The mean surface temperature of the torch is 30.0°C, and it uses 0.100 m3 /s of oxygen at STP (0.101325 MPa, 20.0°C). Assuming ideal gas behavior, determine the work and heat transfer rates.
You look at yourself in a shiny 8.4-cm-diameterChristmas tree ball. If your face is 21.0cm away from the ball's front surface, where is your image? Follow the sign conventions. Is it real or virtual
Two masses are connected by a light string running over a light pulley of negligible friction. One mass is the first mass that is 5kg is on frictionless 20 degrees inclined plane, and the other 1.5kg is freely suspended. What is the acceleration o..
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 25 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 155 m), the block swings ..
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.97 m above the bottom of the chute and with an initial speed of 1.89 m/s. How far from the bottom of the chute does the toy zebra come to rest
Four people with a combined mass of 300kg are riding in a 1100kg car. When they drive down a washboard road with bumps spaced 5.1m apart, How much does the car rise up on its springs
A specific satellite was placed in a circular orbit about 140 meter above the Earth. Determine what is the orbital speed of the satellite
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt, What is the maximum charge on the dome
The amount of C-14 remaining in a charcoal sample from an archaeological site in New Mexico was determined to e 23.3% of the original quantity. the half-life of C-14 is 5730 years. How old was the campsite?
the cordinate of a particles in meters is given by x(t) = 32t-t^3 where time in seconds. what is the velocity as function of time
The figure attached shows the Armstrong oscillator. A transformer with two secondary winding's has been use, one to give feedback and one to give the oscillator's output
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
An aluninum wire has a length of 8 m and a cross-sectional radius of 0.004 m. Calculate the weight of a hanging object
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