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The mean free path of nitrogen molecules at 8.2°C and 1.42 atm is 0.292 x 10-5 cm. At this temperature and pressure there are 3.71 x 1019 molecules/cm3. What is the molecular diameter?
Consider a spaceship in an elliptical orbit around the earth. At the low point, or perigee, of its orbit, it is 400 kilometer above the earth's surface; at the high point, or apogee, it is 4000 kilometer above the earth's surface. Find the period ..
A baton twirler throws a spinning baton directly upward. As it goes up and returns to the twirler's hand, the baton turns during 3.83 revolutions. Ignoring air resistance and assuming that the average angular speed of the baton is 1.88 rev/s, Decide ..
In a historical movie, two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George’s acceleration has a magnitude of 0.300 m/s^2, while Sir Alfred’s has a magnitude of 0.200 m/s^2. Relative to Si..
a projectile is projected from the origin with a velocity of 45.0 m/s at an angle of 30.0 degrees above the horizontal. what is the range of the projectile
a 17.0-n block rests on a horizontal surface. the coefficients of static and kinetic friction between the surface and
A car is traveling at 50 miles per hours. The driver sees a deer and hits the brakes. How far will it go
The punter on a football team tries to kick a football so that it stays in the air for a long "hang time". If the ball is kicked with an initial velocity of 25.0 m/s at an angle of 60.0 degrees above the ground, illustrate what is the "hang time"?
When a charge of 1.600×10-4 C is applied to the plates of a capacitor, the potential difference between the plates is 16 Volts. What is the capacitance
A parallel-plate vacuum capacitor has 6.36 J of energy stored in it. The separation betweenthe plates is 2.20 mm. If the separation is decreased to1.85 mm,
A long solenoid that has 1,160 turns uniformly distributed over a length of 0.350 m produces a magnetic field of magnitude 1.00 x 10-4 T at its center. What current is required in the windings for that to occur
the electric potential in a certain region of space is given by vxyz ?xy ? in units of volts where ? 3.10 vm2 and ?
A proton moving at 106 m/s suddenly enters a repelling electric field of magnitude 104 N/C. How far does the proton travel before stopping
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