According to the big bang theory, what was the big bang? А.
A giant explosion, after which all of the energy and matter in the universe began moving agan
О
В.
A giant supernova explosion that created all of the elements on Earth
C. A collision between early Earth and a massive asteroid that resulted in the formation of the moon
O
D. The inward collapse of a huge nebula that formed the solar system

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)