The moon moves noticeable on the celestial sphere over the space of a single night. (a) to show this, calculate how long it takes the moon to move through an angle equal to its own angular diameter (½°) against the background of stars. give your answer in hours. (b) through what angle (in degrees) does the moon move during a 12-hour night.

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.