Three properties of a basketball ;
Hard
Tough
Round
Earthquakes generate two types of waves p waves and s waves. p waves travel through solids liquids and gasses. s waves travel through only solids.
Answer:
define d first?
you need to list more variables
The best answers to complete this sentence would be the following:
“sidereal day”
“upper median”
<span>It keeps the time, in the two successive upper meridian of the sun during the crossing. Also it is when the star crosses the celestial meridian.</span>
A reference point is a point in geometry or general which is used to determine or refer to another point. In reference to this point, measurements can be done. Like, a reference point in space is used to measure distance or displacement to another point. A reference point in time is used to measure the time interval of an event. A reference in space-time can be used to measure the speed or detect object's motion. Hence, the following points apply:
→A position from which to measure future distance
→a set of standard units for measuring displacement
→a method for determining the speed of an object
→a way to detect an object’s motion
A reference point provides a way/method to infer information about the object.