Using the scale in the diagram below, what is the diameter of Jupiter?
a.
about 7.0 × 104 km
b.
about 7.0 × 105 km
c.
about 1.4 × 104 km
d.
about 1.4 × 105 km
e.
about 3.5 × 106 km
D
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Phase Angles: A 120-V rms voltage at 60 Hz is applied across an RC circuit. The rms value of the current in the circuit is 0.60 A, and it leads the voltage by 60°. What is the resistance in this circuit?
A. 100 ? B. 150 ? C. 120 ? D. 60 ? E. 200 ?
A charged particle moving in the magnetic field created by an external magnet experiences a force that is perpendicular to both the particle’s velocity 
and the direction of the magnetic field 
in the sense indicated by your right thumb if your right index finger points in the direction of and your adjacent finger points in the
direction of . (The magnetic field , in turn, points away from the external magnet’s north pole and toward its south pole.) A certain radioactive substance emits quantons that, when placed in a magnetic field directed away from the observer, bend to the right side of their direction of travel. These nuclei are decaying via which kind of process?
A. An alpha decay process
B. A beta decay process
C. A gamma decay process
D. There is not enough information to specify.
A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz
(a) What is the maximum speed of the needle? (b) What is the maximum acceleration of the needle? What will be an ideal response?
The astronomical object in our sky which plays the most fundamental role in our lives is the
A) Sun B) Moon C) nearest star D) most massive planet in our solar system, Jupiter