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An electron and a proton attract each other with a 1/ r2electric force, just like the gravitational force. Assume that an electron moves in a circular orbit about a proton with a period of the circular motion of 16.06 hour. Determine the radius of the orbit? (Note, this is an unrealistic situation!)
An automobile travels on a straight road for 40.0 km [E] at 30.0 (km/h). It then continues in the same direction for another 40.0 km [E] at 60 (km/h). Estimate the average speed, distance, displacement, & average velocity for the trip.
A block of glass with n= 1.66 is submerged in liquid. For a ray striking the glass with incidence angle 33.0 degrees , What is the index of refraction of the liquid
A vertical spring with a spring constant of 440 N/m is mounted on the floor. what height (in cm) above the compressed spring was the block dropped
A 17-kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 95kg?m2 and radius 1.70m. What fraction of a full circle does the dog's motion make with respect to the ground
The second order maximum produced by a diffraction grating with 580 lines per cm is at angle of 3.5o. Find the wavelength of light that illuminates the grating
A 76-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 817 N. What is the acceleration of the elevator in m/s^2 upward
one mole of oxygen gas is at a pressure of 6.70 atm and a temperature of 24.0degc.a if the gas is heated at constant
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. How fast will the payload be traveling when it reaches the bottom of the shaft
Determine the magnitude and direction of impulse delivered to the ball by the floor.
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 32.5 ° with respect to the horizontal. Find the magnitude of the force that the tow bar exerts on the skier
A ramp inclined at 60.0 degrees with respect to the horizontal rests on a floor. The mass of the ramp is 10.kg, and the coefficent of static friction between the bottom of the ramp and the floor is .8. A 5.0 kg block is then placed on the inclined..
An important discovery by J.J Thomson gives support to thetheory of simple electrostatic phenomena. What is the discovery andhow does it strengthen the theory?
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