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Explain three observations of Galileo which supported the Copernican Model and state also why they falsified the Ptolemaic/Aristotelian system.
A circular coil enclosing an area of 99 cm2 is made of 202 turns of copper wire. The wire making up the coil has resistance of 6.0 , and the ends of the wire are connected to form a closed circuit. what average current flows through the coil during..
A 500g glider on an air track is at rest, and is attached to a spring with a spring constant of 10 N/m. What is the amplitude and period of the resulting oscillations
An iron anchor of density of 7870 kg/m^3 appears 200 N lighter in water then in air. Determine the weight of the anchor in air
The left ventricle of the heart accelerates blood from rest to a velocity of + 25.9 cm/s, How much time does blood take to reach its final velocity
A ship sets out to sail to a point 197 km due north. An unexpected storm blows the ship to a point 107 km due east of its starting point. In what direction must it now sail to reach its original destination.
The distance to the moon can be found with the help of mirrors left on the moon by astronauts. calculate the distance from the earth to the moon
A metallic wire has a diameter of 4.12 millimeter. When the current in the wire is 8 amp, the drift velocity is 5.40 x 10-5 m/s. Determine what is the density of free electrons in the metal
If this amount were shaped into a cube, what would be the length of one edge of that cube (in meters)
You measure an electric field of 1.35×106N/C at a distance of 0.141m from a point charge. There is no other source of electric field in the region other than this point charge. What is the electric flux through the surface of a sphere that has thi..
A helicopter has two blades, each of which has a mass of 270 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 54 rad/s. (a) What is the total moment of inertia of the two blades about the axis o..
To focus a camera on objects at different distances, the converginglens is moved toward or away from the film, Over what distance must the lens be movable
In a liquid with a density of 1450kg/m3 , longitudinal waves with a frequency of 390Hz are found to have a wavelength of 7.50m
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