[OU.02H]The table below shows the right ascensions of two stars at a location. Name of star Right ascension (in hour)
Star 1 2
Star 2 3

PLZ HELP, WILL MARK BRAINLIEST AND GIVE 10 POINTS.
What is the interval between the times when the two stars cross the meridian at the location?
1 hour
2 hour
3 hour
5 hour

What object a collides with object b and bounces back its final momentum is?

Ascientific blank must be testable and capable of being proven false?

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.