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A gas is compressed at a constant pressure of 0.800 at m from 9.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat.
a) What is the work done on the gas?
b) What is the change in its internal energy?
The power stroke of the myosin protein on an actin filament that generates tension in a muscle appears to be a 10 nm displacement generated by about a 1 pN force. Each power stroke is accompanied by the splitting of one ATP molecule which releases..
A spring with a constant k=42.3 N/m has a 2.10 kg mass attached to it. The mass is free to slide on a frictionless track parallel to the spring. What is the total energy in the system
The output signal intensity of the transducer is 40 Watt / cm2. The echo returning from a reflector deep inside the patient is 0.025 Watt / cm2. How many dB is the ratio of output signal to echo?
you launch a small rocket up into the air. the rocket has a constant total acceleration of 12m/s^2 and burns for 10 seconds. ignoring air resistance: find the velocity of the rocket when it burns out
a car starts from rest at a stop sign. it accelerates at 2.0 ms2 for 6.0 seconds coasts for 2.0 s and then slows down
A uniform electric field of magnitude 249 V/m is directed in the negative y direction. A +13.4 ?C charge moves from the origin to the point (x, y) = (15.0 cm, 50.8 cm)
A 40 cm diameter wheel accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. how far will a point on the edge of the wheel have traveled in this time. what is the ratio of the new force to the old force.
A long uniform wooden bar with square crosssection floats on water. Show that , if the relativedensity of wood is 0.50, the bar will float with all fourfaces making an angle of 45 degrees with the water surface.
A capacitor has parallel plates that have an area of 1.06 cm2 and are 1.08 mm apart. Find the potential across the plates
It is desired to project an image of an object four times actual size with a lens of focal length 20 cm. What object distance should be used
light incident on a pair of slits produces an interference pattern on a screen 2.5 m from the slits. if the slit
After emptying her lung, a person inhales 4.1 L of air at 0.0 oC and holds her breath. How much does the volume of the air increase
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