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Question: Find the mass flow rate in through the vent in question #1 using the following well-known relationship for the mass flow into an opening:
Where: m = mass flowA = area of the openingH = height of the opening
Find out the acceleration of the sled and child
The frequency of an opera singer is 450 Hz. Assume the speed of sound in air is 340 m/s. What is the frequency heard by an observer who is running down the road towards the opera singer with a speed 25.0 m/s.
Determine the resolution limit set by diffraction . what average force do you need to apply to stop the sled? Utilize the concepts of impulse and momentum.
Speedboat A negotiates a curve whose radius is 115 m. Speedboat B negotiates a curve whose radius is 194 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
Compute the heat absorbed by the gas and work done by the gas during expansion.
The K-shell ionization energy of copper is 8979 eV. The L-shell ionization energy is 951 eV. Determine the wavelength of the Kα emission line of copper. What should be the minimum voltage be on an x-ray tube with a copper target in order to see the K..
The spring of the pressure gauge has a force constant of1000 n/m and the piston has a diameter of 2.00 cm as the gauge is lowered into water, what change in depth causes piston to move in by 0.50 cm.
Calculate the power required by an object to lift another object
Calculate the minimum angle above the horizontal at which Hiawatha must aim in order to outrun the arrow.
What is the new acceleration of box
What is the horizontal distance the airplane engine falls. find out the time that was recorded on Earth.
A 1600 kg car starts from rest at A, coasts 180m through a dip and comes to stop at B after coasting a distance d on level ground. If the rolling resistance is a constant force of 280N, conclude the distance d.
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