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Here in Boulder, normal atmospheric pressure is NOT 1 atm (that's down at sea level) Let's call it 0.850 atm on a given day. If the rarefactions of a particular sound wave then reduce the pressure to 0.843 atm, what is the amplitude of the pressure wave, expressed in metric units of Pa (which is the same as N/m2)?
With its double helix structure, DNA is coiled like a spring. A biophysicist grabs the end of a DNA strand with optical tweezers, What's the DNA spring constant
Calculate the speed of the fetal heart wall at the instant this measurement is made.
The puck has a mass of 0.140kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 70cm/s. The string is pulled downward 15cm by the hole in the frictionless table. Determine the work completed on the puck.
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
By what factor will the rms speed of gas molecules increase if the temperature is increased from 40 ?C to 150 ?C
Two negative chrges are placed on the x-axis. A charge of -11.4 micro coulmbs is placed at x=0cm and another charge of -5.4 m/C is placed at x=119cm. where on the x axis is the total field between the two charges zero? Answer in cm
A spinning wheel is slowed down by a brake, giving it a constant angular acceleration of 5.20 rad/s^2. What is the angular speed of the wheel at the end of the 2.80-s interval
A galvanometer has a coil resistance of 29.0 ?. It is to be made into a voltmeter with a full-scale deflection equal to 100.0 V, what size resistor should be placed in series with the galvanometer
In the lungs there are tiny sacs of air that are called alveoli. An oxygen molecule (mass = 5.30 x 10-26 kg) is trapped within a sac, and the uncertainty in its position is 0.140mm. What is the minimum improbability in the velocity of this oxygen ..
In order to heighten your enjoyment of your 29-carat blue diamond, you view it through a lens held close to your right eye, estimate the focal length of the lens
what is the ratio of the amplitude of damped oscillations.
how long is the eagle in the air?
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