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A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is T = 2.24 hours.What is density (mass/volume) of the planet? Assume that the planet has a uniform density.
Geothermal heat is having another "revival". Explain how it works in a home and how much it would cost to add this to your home (determine your square footage or use an average 2000 square foot home), How many panels (size?) would you need
A hoop and a disk, both of 0.72- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.5 m high and 8.9 m long. What is the speed of the hoop
Three resistors, 2.57ohm, 2.51ohm, and 4.45ohm, are connected in series across a 24.4-V battery
A copper ball with a radius of 1.7cm is heated until its diameter has increased by 0.19mm a)Assuming an initial temperature of 22 degrees celsius, find the final temperature of the ball.
Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
An electron is fired with speed 2400 m/s into a region of uniform electric field with magnitude 8 N/C. how long will it take for the electron to come to a stop
Two vectors of magnitude 22.6 N and 24.5 N act at right angles to each other. What is the magnitude of their resultant vector
A lightbulb is 48 cm from a convex lens, and its image appears on a screen located 31 cm on the other side of the lens. By how much is the image enlarged or reduced
A space traveller whose mass is 104kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no near planetary objects.
a -58nC charge is distributed uniformly along the x-axis from x = -1.3 m to x = 3.4 m. Consider a point at y = 2.2 m on the y-axis. a) what is the x-component of the electric field at the point
calculate the work done on a charge Q. If an automobile rounds this curve at 30 {rm m/s}, what is the least coefficient of static friction between tires and road needed to prevent skidding.
A copper wire has a resistance of 0.400 at 20.0°C, and an iron wire has a resistance of 0.430 at the same temperature
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