What gives the most direct view into the Sun's core?
What will be an ideal response?
Neutrinos travel directly out of the Sun to the Earth in about 8 minutes. Neutrino detectors can detect these, confirming the nuclear reactions happening in the Sun's core.
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A 25. meter long wire, of diameter 0.30 mm, connected to 3.00 volts draws 0.499 A
(a) What is the resistance of the wire? (b) What is its resistivity? (c) What is its conductivity?
Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with a uniform forward acceleration of 2.40 m/s2
How long after car A begins to accelerate does it take car A to overtake car B? A) 12.6 s B) 316 s C) 5.50 s D) 19.0 s E) Car A never overtakes car B.
A vector lies in the x-y plane. For what orientations will both components be negative?
1.The vector lies between 180° and 270° from the x-axis. 2.The vector lies between 0° and 90° from the x-axis. 3.The vector lies between 90° and 180° from the x-axis. 4.None. Just like for vector magnitudes, components are always positive.
When the standing wave pattern in a pipe is NANA, the pipe has which of the following set of properties? (N stands for node, A for antinode.)
a. It is open at both ends. b. It is closed at both ends. c. It is open at one end and closed at the other end. d. Any of the above could be true.