You piace a block of wood on its smallest face on a table. When you turn the block onto its largest face, what changes?
A. Density increases.
B. Temperature decreases.
C. Force increases.
D. Pressure decreases.

Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current

What does si stand for,when referring to a system of measurement

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.