An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the point of origin of the flight. The plane flies with an airspeed of 120 m/s
If a constant wind blows at 10 m/s toward the west during the flight, what direction must the plane fly relative to the air to arrive at the destination?
A) 4.8° west of north
B) 85° west of north
C) 4.8° east of north
D) 5.9° west of north
E) 5.9° east of north
C
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How can asteroids be distinguished from stars in telescope observations?
A) Asteroids move relative to the stars. B) Asteroids are much dimmer than stars. C) Asteroids are much redder than stars. D) Asteroids are much brighter than stars. E) Asteroids are not spherical.
A cylinder rolls, without slipping, down an incline directly toward you. The contact interaction between the cylinder and the incline exerts a frictional torque on the cylinder. What is this torque’s direction?
A. Downward B. Away from you C. To your right D. To your left E. Some other direction (specify)
Valles Marineris is a(n)
A) large canyon on Mars. B) large valley on the Moon. C) huge series of cliffs on Mercury. D) large canyon on Venus. E) extensive plain on Mars.
We are not yet capable of detecting life on planets around other stars. But as our technology develops, our first real chance of detecting such life will probably come from
A) sending spacecraft to study the planets up close. B) examining spectral lines from the atmospheres of distant planets. C) examining high-resolution images of the planets made by orbiting telescopes. D) determining the orbital properties of the planets.