Which kind of robotic space mission enables us to determine the chemical composition of a solar system body in a laboratory?
A) sample return
B) flyby
C) lander/probe
D) orbiter
A
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If the headlights on a car are separated by 1.3 m, how far down the road can they be resolved if the angular resolution of the eye is 5.0 × 10-4 rad and the person has excellent vision?
A) 1.3 km B) 5.0 km C) 4.8 km D) 0.65 km E) 2.6 km
As a 70-kg person stands at the seashore gazing at the tides (which are caused by the Moon), how large is the gravitational force on that person due to the Moon?
The mass of the Moon is 7.35 × 1022 kg, the distance to the Moon is 3.82 × 108 m, and G = 6.67 × 10-11 N ? m2/kg2. A) 0.0024 N B) 0.24 N C) 0.024 N D) 0.00024 N
A 7.50-kg bowling ball strikes a 5.20-kg pin. The pin flies forward with a velocity of 4.00 m/s; the ball continues forward at 5.50 m/s. What was the original velocity of the ball?
a. 11.3 m/s b. 8.27 m/s c. 0.128 m/s d. 1.34 m/s e. 4.61 m/s
Why is there no surface on Jupiter or Saturn?
What will be an ideal response?