Question 7 (1 point) How long does it take for the Earth to make ONE revolution around the Sun? How
long does it take for Earth to rotate?
Lesson 3.03
It takes a day. It takes a week
It takes a year. It takes a day
It takes a week. It takes a day.
It takes a day. It takes a year

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.