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The mass of the moon is 7.34 x 10^22 kg and its average radius is 1785 km.
a) Between January, 1998, and December 1998 the Lunar prospector was in a nearly circular orbit around the moon at an altitude of 1.0 x 10^2 km. What was the period of the Lunar Prospector in minutes?
Police investigators, examining the scene of an accident involving two cars, measure 72 -long skid marks of one of the cars, Estimate the initial speed of the car assuming a level road
A disk with a radius of 1.5 m whose moment of inertia is 34 kg · m2 is caused to rotate by a force of 160 N tangent to the circumference
Speedboat A negotiates a curve whose radius is 198 m. Speedboat B negotiates a curve whose radius is 290 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
a 250-kg motorcycle goes around an unbanked turn of radius 13.7m at a steady 96.5 km/h. What is the magnitude of the net force on the motorcycle?
For a damped simple harmonic oscillator, the block has a mass of 2.2 kg and the spring constant is 13 N/m. The damping force is given by -b(dx/dt), How many oscillations are made by the block in this time
Two 12-cm-diameter charged rings face each other, 17.0 apart. Both rings are charged to + 40.0. What is the electric field strength at the midpoint between two rings.
A 25,000-kg subway train initially traveling at 10.5 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 67.0 m long by 18.5 m wide by 12.5 m high.
An electric field E with an average magnitude of about 150 N/C points downward in the atmosphere near Earth's surface, What charge (both sign and magnitude) must be used
A uniform disk of radius 0.471 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
Estimate, from these data, the effective distance between the atoms.
A gymnast with mass m1 = 40 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 110 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A cannonball is catapulted toward a castle. The cannonball velocity when it leaves the catapult is 40 m/s at an angle of 37%uF0B0, What is the cannonball%u2019s impact speed when it lands
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