Explanation:
Which process is a physical change?
c. melting ice
If you break a piece of glass, the shape of the glass changes, but the properties in the fragments remain the same. Which of the following has occurred?
d. a physical change
A substance made up of two or more elements that have been chemically combined is called
c. a compound
Of the three ordinary states of matter, gas is the only state that
c. is highly compressible
In which state of matter do the particles have the most energy?
b. gas
Elements in group 18 called Noble Gases are highly reactive because they have 1 valence electron.
false
Atomic mass is the sum of
b. protons and neutrons
The current model of the atom is known as
a. Rutherford's model
Most elements on the periodic table are
d. metals
Which is not a quality of a non-metal?
a. shiny
Hope this helps.
Answer: 25 joules
Explanation:
Recall that kinetic energy is the energy possessed by a moving object.
So, kinetic energy = 1/2 X Mass X Velocity^2
Mass = 0.5kg
Velocity = 10m/s^2
= 1/2 x 0.5kg x 10^2
= 0.5 x 0.5 x 100
= 25 Joules
Thus, the kinetic energy of the moving ball is 25 joules
If the web happened to look like this one I attached then the anwser would be shrubs. If you take a look at the arrows the shrubs energy is moving to rats, insects and lizards which in turn feeds the coyotes. The starting point is shrubs and in general most food webs start with plants.
The body needs to maintain the amount of oxygen that reaches our cells. If we exercise a lot, our breathing rate increases. More oxygen enables our cells to <span>more quickly respire aerobically, so that our muscles can contract more rapidly.
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They're plant cells. The green organelles should be chloroplast. They're responsible for photosynthesis.
