A negatively charged ion is travelling eastward with a velocity of 7000 m.s−1 when it passes through a region of magnetic field of strength 0.04 T which is directed vertically upwards. The direction of the force on the negative ion is:
I am not sure northward or vertically upward if someone can explain
A transparent hemisphere of refractive index 1.5 and radius of curvature 20 cm is placed flat side down on a piece of paper with a 4.0 mm tall letter G written on it such that G is in the center.What is the size of G when viewed directly from above
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Your answer quite unrelated
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