Briefly describe why the fact that we detect neutrinos coming from the Sun supports the idea that the Sun generates energy by nuclear fusion
What will be an ideal response?
Laboratory experiments and theory show that fusion produces neutrinos. Therefore, scientists predict that neutrinos should come from the Sun if fusion is occurring in its core. Theories predict how many and what type of neutrinos should be observed. Thus, the observations that confirm this prediction support the theory.
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What will be an ideal response?
The block shown in the figure has mass =7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle theta=22.0 degrees to the horizontal.
(a) Determine the acceleration of the block as it slides down the plane.
(b) If the block starts from rest 12.0 m up the plane from its base, what will be the block’s speed when it reaches the bottom of the incline?
What is the angular magnification of a magnifying glass of focal length 4.0 cm if the image is to be viewed by a relaxed eye (image at the far point) having a near point of 25 cm and a far point at infinity?
A) 2.0 x B) 3.0 x C) 3.6 x D) 4.0 x E) 6.3 x
Series Resonance: A series circuit consists of a 0.440-H inductor, a 380.0-? resistor, a 5.70-?F capacitor, and an ac voltage source of amplitude 250.0 V. Find the rms voltage across the capacitor when the circuit operates at resonance.
Fill in the blank(s) with the appropriate word(s).