All four of the giant outer planets—Jupiter, Saturn, Uranus, and Neptune—have rings
Indicate whether the statement is true or false
TRUE
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A gun is made of a super-low-weight but strong material. The bullet for the gun is more massive than the gun itself. For such a gun
A. the gun, if unsupported, would have a recoil velocity higher than the bullet velocity. B. the bullet would go faster with less powder. C. recoil problems would be lessened. D. conservation of momentum is not satisfied.
By what primary thermal energy transfer mechanism does the Sun warm Earth?
A) convection B) conduction C) radiation D) All of the above processes are equally important in combination.
A large telescope of mass 8410 kg is in a circular orbit around the earth, making one revolution every 927 minutes. What is the magnitude of the gravitational force exerted on the satellite by the earth?
(G = 6.67 × 10-11 N ? m2/kg2, Mearth = 6.0 × 1024 kg)
A string is wrapped tightly around a fixed frictionless pulley that has a moment of inertia of 0.0352 kg ? m2 and a radius of 12.5 cm. The string is pulled away from the pulley with a constant force of 5.00 N, causing the pulley to rotate
What is the speed of the string after it has unwound 1.25 m if the string does not slip on the pulley? A) 2.09 m/s B) 2.36 m/s C) 1.18m/s D) 3.18 m/s E) 4.95 m/s