The complete question is :
Charlie is investigating friction. She will use the same amount of force to push two wooden balls across two level surfaces. Then she will record her results in the table below.
Which prediction will most likely describe how friction will affect her findings?
Answer:
The distance for Trial 3 will be greater than the distance for Trial 4 because the difference in surface roughness will affect friction.
Explanation:
The frictional force depends greatly on the roughness of the body surfaces. It acts opposite to the direction of motion when two body surfaces have a relative motion between them.
In the context, equal mount of force is applied to push the wooden balls. So the net force which acts on the balls are :
F' = F - f
Here, F = the force applied
f = force of friction
And f = μ.N (N = reaction force)
Here μ is the coefficient of friction that depends on the surface roughness. The frictional force will be less when the surfaces are smooth. Thus for the trails 3 and trial 4, the distance for trail 3 would be greater than trail 4 as the surface is polished and would offer less friction.
<span>Insects are found in almost all ecosystems on Earth, with the rarity being oceans. While some species, such as coconut crabs, sand hoppers, woodlice and pill bugs dwell on land, crustaceans are generally found in water — and usually oceanic — regions. Adapting to their habitat, many insect species evolved wings — two pairs for most and one pair for others. A tracheal system is also present for breathing. Crustaceans, on the other hand, breathe using gill-like mechanisms.</span>
Answer:
Do further testing on the species to discover whether or not the species is related.
Explanation:
THE MUSCULAR
SYSTEM
Movements YOU CAN
VOLUNTARILY and
INVOLUNTARily clo
are controued by
the muscular System
more
SMOOTU Muscles
heb operate organi
OLUNTARY
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den
CARDIAC muscles
keep the heart Png
involuntary
3
all in
your
WORK
TUN
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Internal
1
Skeletal muscles
+Move your bones
*Voluntary
bladder
2
Toke
turns
Contracting
& Piping
4
4
Match the word phrase with the correct place on the chart."
1
2
3
4
Constantly at Work
Stomach
Connects Bones to Tendons
Typically Work In Pairs
Answer:
Explanation:
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