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Construct Your Own Problem
Consider the decay of radioactive substances in the Earth's interior. The energy emitted is converted to thermal energy that reaches the earth's surface and is radiated away into cold dark space. Construct a problem in which you estimate the activity in a cubic meter of earth rock? And then calculate the power generated. Calculate how much power must cross each square meter of the Earth's surface if the power is dissipated at the same rate as it is generated. Among the things to consider are the activity per cubic meter, the energy per decay, and the size of the Earth.
two capacitors c1 22.0 microf and c2 40.0 microf are connected in series and a 15.0 v battery is connected across
What is the ratio of the force of the father on the baby to the force of Jupiter on the baby? Calculate the force on the baby, in newtons, due to Jupiter.
A u-tube with a cross-sectional area of 1.00 cm^2 is open to the atmosphere at both ends. WAter is poured into the tube until the water rises part way along the straight sides, What is the density of the oil
Bob takes off for a planet that is 100 LY away moving in a rocket ship at .9999c relative to Earth when he is 10 years old. How old is Bob (in years) when he arrives
A solid uniform disk of mass M = 8.8 kg and radius R = 21 cm rests with its flat surface on a frictionless table (i.e., the axis of the cylinder is perpendicular to the table.) The diagram shows a top view. A string is wrapped around the rim of th..
A compact disc (CD) contains music on a spiral track. Music is put onto a CD with the assumption that, during playback, Find the constant tangential speed at which music is detected
The magnetic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0s. If the resistance of the coil is 16 Ω, at what rate is power generated in the coil during this change?
block A which is 19.3 N is placed on a frictionless ramp that is inclined at 15 degrees. Block B which is 15.7 N is placed on top of the block, estimate the tension in the cord
The 2 kg block in the figure slides down a frictionless curved ramp, starting from rest at a height of h = 2 m. The block then slides d = 11 m on a rough horizontal surface before coming to rest. What is the coefficient of friction among the block an..
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 6.50 km from the source, What is the average power radiated by the source
if the temperature inside a room is 298k and the temperature outside is 263k calculate the maximum value of r relative
A toy cannon uses a spring to project a 5.80 g projectile. The spring is originally compressed with 8.00 cm and has a force constant of 15.54 N/m. When the spring is released, the projectile slides 15.0cm during the barrel of the cannon where the bar..
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