Is is true the state of a medium determine the speed of sound passing through the medium

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature