During summer in the Northern Hemisphere,
A.
the Sun rises in the Southeast and sets in the Southwest.
B.
there are fewer hours of visible sunlight each day than during other seasons.
C.
the Sun appears lower in the sky than during other seasons.
D.
the Sun rises earlier and sets later than during other seasons.
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How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

A( developed during the process of technology design

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?