Question 3 of 25 Which two explanations are based on personal beliefs?
D A Data gathered during experiments show that there is an inverse
relationship between the force of gravity and distance.
B. Certain mineral crystals have properties that help protect the
body from illness.
C. Medical data gathered over many years show that lack of
adequate sleep causes health problems.
D. A constellatioris position in the night sky can be used to predict
events in a person's life.
O E Observations using microscopes reveal that all known organisms
are composed of tiny structures called cells.

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.