We measure distances in astronomy in terms of AU which is the distance between the earth and sun. If the distance is 2AU, it is twice that distance.
What happens to the time period (1 year) for planets when you double the
distance from the sun? (approximately)

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

Anybody wanna ? (picture included? )