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Tests of lung capacity show that adults are able to exhale 1.5 liters of air through their mouths in as little as 1.0 second.
If a person blows air at this rate through a drinking straw with a diameter of 0.60 cm, what is the speed of air in the straw?
If the air from the straw is directed horizontally across the upper end of a second straw that is vertical, as shown in the diagram, to what height does water rise in the vertical straw?
Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = -40 pC and Q = +30 pC, define the net flux through a spherical surface (radius = 1.0 m) centered on the origin.
A 0.360 kg pendulum bob passes through the lowest part of its path at a speed of 2.86 m/s, When the pendulum reaches its highest point, what angle does the cable make with the vertical
A friend of yours who starts out at the same age as you travels to the alpha centauri solar system which is 5.20 light-years away. How much older than your friend are you now
q1. two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 n. if one person applies an
An ambulance is traveling east at 55.6 m/s. Behind it there is a car traveling along the same direction at 34.5 m/s, What is the wavelength of the sound of the ambulance's siren
About once every 30 minutes, a geyser known as Old Faceful projects water 18.0 m straight up into the air. Use g = 9.80 m/s2, find the speed of the water when it emerges from the ground
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.209 m and mass 4.51 kg, what should the radius of the disk be
A neutron of initial kinetic energy (Eini) scatters elastically from a target nucleus which is initiallt at rest. Find the maximum and average fractional kinetic energy loss F=1-(Efinal/Einitial)
Binoculars denoted as 7 x 50 have a total magnification of 7 times and objective lenses of 50- mm diameter. What is the focal length of the eyepiece
A figure skater is spinning with an angular velocity of +13 rad/s. She then comes to a stop over a brief period of time. Determine the time during which she comes to rest
An electron field of 8.50e5 V/m is desired between two parallel plates each of area 45cm^2 and seperated by 2.45 mm of air
What would be the electric current intercepted by the total surface area of the planet?
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