The solar neutrinos observed on Earth come from the hot spots in the corona
Indicate whether the statement is true or false
FALSE
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Induction: 
X and Y are two initially uncharged metal spheres on insulating stands, and they are in contact with each other. A positively charged rod R is brought close to X as shown in part (a) of the figure. Sphere Y is now moved away from X, as shown in part (b). What are the final charge states of X and Y?
A. Both X and Y are neutral. B. X is positive and Y is neutral. C. X is neutral and Y is positive. D. X is negative and Y is positive. E. Both X and Y are negative.
An ideal diode in an ac circuit
A. doubles the current. B. halves the current. C. permits the current to flow in only one direction. D. permits the current to flow in one direction and double the current to flow in the other. E. permits the current to flow in one direction and half the current to flow in the other.
In this figure a light ray travels between air and glass. Which way did the light ray go?
 a. from the air into the glass b. from the glass into the air c. either A or B. d. None of the above—this depicts an impossible situation.In a relay race, runner A is carrying the baton and has a speed of 3.00 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.100 m/s2
How long afterwards will A catch up with B to pass the baton to B? A) 5.17 s B) 10.0 s C) 11.9 s D) 20.4 s E) A never catches up.