Which oftthe following is the least reliable source of background information for a scientific project? General internet site, government internet site, library reserve section, or scientific journal.

Automobile airbags contain solid sodium azide, nan3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2nan3 (s) ⟶2na (s) + 3n2 (g) calculate the value of work, w, for the system if 24.8 g nan3 reacts completely at 1.

How do the two reflex arcs differ in complexity

This is an electrical device that changes the voltage of electricity through the use of two set of coils

Temperature and silica content determine the of magma.

An example of mechanical energy being converted into heat energy is A) the sun. B) a generator. C) a Snickers bar. D) rubbing your hands together.

A body is projected from the ground at an angle of 30° with the horizontal at an initial speed of 128 ft/s. Ignoring air friction, determine: a) in how many seconds it will strike the ground. b) how high it will go. c) what its range will be.

What does the statement "10 m/s to the north" describe?

An object is dropped from rest from a certain height. Air resistance is negligible. After falling a distance, d, the object's kinetic energy is proportional to which of the following? (A) 1/d (B)  d (C) d (D) d2

Where are the female reproductive organs of a flower found? Question 26 options: in the stamen in the roots in the pistil in the petals

What type of craft should be used for orienteering in the water?