How did Galileo’s observation of Venus support the heliocentric system?

- He observed that while Venus was in the crescent phase it appeared larger than when it was in full phase.
- He observed that Venus appeared largest when it was in the full phase.
- He did not observe Venus as ever being in the full phase.
- He observed that while Venus was in the full phase it appeared larger than when it was in full phase.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

In a system, when potential energy decreases, then entropy also decreases. true false

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative