The Galileo mission put a spacecraft into orbit around Jupiter. Which statement about that spacecraft is true?
A) The spacecraft crashed into the moon Europa.
B) The spacecraft's probe measured windspeeds in Jupiter's atmosphere.
C) A saltwater ocean was discovered on Jupiter.
D) Intense magnetic fields were discovered in the asteroid belt.
E) A probe was released which soft landed on Io.
B
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Velocity is similar to speed, but a ________ is also involved in velocity
a. acceleration b. direction c. position d. scalar
Water at 20°C is transported in a 10-cm-diameter cast iron horizontal pipe at a flow rate of 0.02 m^3/s. The pressure drop over 100 m of the pipe is nearest:
(A) 97 kPa (B) 84 kPa (C) 62 kPa (D) 51 kPa
A solenoid must be produced that has a magnetic flux density of 25,000 T. The coil for the solenoid has 200 loops in a distance of 1 cm, and the maximum current for the wire is 1A. Select a suitable material for this solenoid from the materials listed. For this design, performance is more important than cost.
What will be an ideal response?
The radius of the Bohr orbit for hydrogen with n = 3 is ______ time(s) that for the orbit with n = 1.
A. 1/3 B. 3 C. 6 D. 9 E. 18