Most hot Jupiters are thought to have formed in the orbits they have been discovered
Indicate whether the statement is true or false
FALSE
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If you set the cruise control of your car to a certain speed and take a turn, the speed of the car will remain the same. Is the car accelerating?
A) Yes B) No
The curvature of spacetime around a black hole is so extreme that outward-going signals cannot escape
Indicate whether the statement is true or false
A blimp is filled with 200 m3 of helium. How much mass can the balloon lift? The density of helium is one-seventh that of air, and the density of air is 1/800 that of water. Consider the mass of the balloon to be negligible.
A. 115 kg B. 214 kg C. 315 kg D. 415 kg E. 37 kg
A proton with velocity 2.0 × 105 m/s enters a region where a uniform magnetic field of 0.30 T is present. The proton's velocity makes an angle of 60° with the magnetic field
What is the pitch of the helical path followed by the proton? (The "pitch" is the distance traveled parallel to the magnetic field while making one complete revolution around a magnetic field line.) A) 0.022 m B) 0.140 m C) 0.077 m D) 0.250 m E) 0.055 m