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A proton is confined within an atomic nucleus of diameter 3.5 fm. Estimate the smallest range of speeds you might find for a proton in the nucleus. The answer im supposed to be getting is 1.8x10^7.
The half life for the alpha decay of uranium 238 is 4.47x10^9 yrs old. Determine the age (in years) of the rock specimen that contains 60% of its original number of Uranium 238 atoms.
A chair of weight 130 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.00 N directed at the angle of 35.0 degrees below the horizontal and the chair slides along the floor. Using Newton's law..
An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. determine the energy of the electromagnetic radiation
A moving 4.50kg block collides with a horizontal spring whose spring constant is 494 N/m. What is the speed of the block when it hits the spring
A car is moving with constant acceleration along a straight road. Determine how the velocity varies for positive acceleration if the car is initially moving to the right with a speed of 10.0 m/s
A metal ball with a mass of 2.97·10-6 kg and a charge of +4.91 mC has a kinetic energy of 6.81·108 J. how close will it come to the plane before stopping
he rate P at which a star radiates energy in the form of electromagnetic waves can be calculated using the equation, Calculate a numerical value for the intensity of sunlight
The wavelength of visible light ranges from 400 nm to 700 nm. Find the ranges of this light's wave number
A highway curve with radius 850 is to be banked so that a car traveling 52.0 will not skid sideways even in the absence of friction. At what angle should the curve be banked?
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. How far along the rough patch do the blocks go before stopping
question1a 43 n toys is placed in a light swing that is attached to ropes 3.5 m long.a discover gravitational potential
A person looks horizontally at the edge of a swimming pool. If its length is 5.00m, and the pool is filled to the surface, to what depth (in m) could observer see? For water is 1.33).
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