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The Earth can be approximated as a sphere of uniform density, rotating on its axis once a day. The mass of the Earth is 5.97×1024kg , the radius of the Earth is 6.38×106m , and the period of rotation for the Earth is 24.0hrs .
What is the moment of inertia of the Earth? Use the uniform-sphere approximation described in the introduction?
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, find the struck ball's velocity (magnitude and direction) after the collision
A rail car that weighs 34 N is accelerated at 8.3 m/s/s for 5.9 seconds. How much work is done on the rail car? The acceleration is constant
A uniform plank of length 4.9m and weight 228N rests horizontally on two supports, with 1.10m of the plank hanging over the right support. To what distance x can a person who weighs 449N walk on overhanging part of the plank before it just begins ..
A particle (M1 = 1.47 kg) moving at 30.0° downward from the horizontal with v1 = 2.53 m/s hits a second particle (M2 = 3.47 kg), What is the speed of M2 after the collision
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
A 60 power telescope has an eyepiece with a focal length of 10 cm. find the objective focal length
fish tank filled with water is made of flat glass walls of n = 1.52. What is the maximum angle of incidence for a light ray
Radioactive isotopes often occur together in mixtures. assume a 480 sample contains , with a half-life of 12 days, and , with a half-life of 4.5 days.
A diver releases an air bubble of volume 2.9 cm3 from the depth of 18 m below the surface of a lake, where the temperature is 7.2°C. What is volume of the bubble when it reaches just below the surface of the lake, where the temperature is 22°C.
A spring of force constant k=2.5*10^2 N/m is suspended form a rigid support. An object o mass 1.00 kg is attached to the uns How far below the starting point is equilibrium position for the object.
A copper vat is 12 m long at room temperature (20 degrees Celsius). How much longer is it as it contains boiling water at 1 atm pressure.
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