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mass if it is placed at the following locations. Consult the figure 12.9 in the textbook, and assume a constant density through each of the interior regions (mantle, outer core, inner core), but not the same density in each of these regions. Use the graph to estimate the average density for each region.
(a) at the surface of the earth
(b) at the outer surface of the molten outer core
(c) at the surface of the solid inner core
(d) at the center of the earth.
The bones of a saber-toothed tiger are found to have an activity per gram of carbon that is 14.70 of what would be found in a similar live animal. How old are these bones.
Radiation of intensity 1.00 kW/m2 is incident on an area perpendicular to the incoming light. What is the resulting power per unit area now reaching the surface
A uniform beam of length L = 7.80 m and weight 3.95 102 N is carried by two workers, Determine the force that each person exerts on the beam
You throw a ball horizontally off a roof. the time until it lands is determined only by The height of the roof and it's initial speed
At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m. find the time when the balls collide
You throw a 1kg ball out of a window 12 m above the ground. It lands 5 m from the building after 1 s. ignore air resistance, How fast was it traveling when it hit the ground
Compute the velocity of the electron assuming that hydrogen is described by the Rutherford-Bohr model
By how much does the ball clear the net. How far below top surface would the medallion appear if the observer (not wearing goggles) and the block were under water.
Capacitors won't hold a charge indefinitely; as time goes on, charge gradually migrates from the positive to the negative plate. What is the leakage resistance
An insect sits on the edge of a spinning record that has a radius of 0.15 m. The insect%u2019s speed is 0.6 m/s. What is the insect's acceleration
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying? Assume that the required force is provided entir..
An iron cube with a volume of 8.00cm^3 is submerged in ethyl alcohol, which has a density of 0.806g/cm^3. What is the volume of ethyl alcohol displaced
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