Answer:
Option (C)
Explanation:
The oceanic trenches are often defined as those long and narrow type of depressions that are formed at the seafloor, along a convergent plate boundary between two oceanic plates or continental and an oceanic plate.
Canyons are the erosional features that are formed due to the down-cutting of the surface rocks by a deep and narrow type of river channel, giving rise to the formation of steep cliffs on both the sides of the channel.
Both these features are similar in appearance but oceanic trenches are formed at the bottom of the ocean whereas canyons are formed at the surface of the earth.
Thus, the correct answer is option (C).
B. L = W; F = D
C. L = W = F = D
D. L = W; F > D
Answer:
(B) L=W; F=D
Explanation:
Since the airplane's velocity is constant, the airplane is not accelerating in any direction. In absence of acceleration, all forces acting on the plane are balanced so that the net forces in the horizontal and the vertical directions are zero. Given the drawing, this implies that
Forward force = Drag force (F=D)
Weight = Lift (W=L)
which corresponds to option (B)
(it is not C because nothing in the text says that the vertical and horizontal components have to have same magnitude)
The relationship between the magnitudes of the forces is that lift force is equal to weight force, and drag force is equal to thrust force.
In this scenario, the airplane is flying at a constant velocity, which means that its acceleration is zero. According to Newton's first law of motion, if an object is moving with a constant velocity, the net force acting on it is zero.
Therefore, the relationship between the magnitudes of the four forces shown in the diagram is that the lift force (L) is equal to the weight force (W), and the drag force (D) is equal to the thrust force (F).
So, the correct answer is C. L = W = F = D.
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Answer:
E.)none of the above
Explanation:
Elastic energy = kinetic energy
½ kx² = ½ mv²
v = x √(k / m)
v = 0.2 m √(20 N/m / 2 kg)
v = 0.632 m/s
Time to travel 2.0 m:
t = (2.0 m) / (0.632 m/s)
t = 3.16 s
Cells are the units that together make the organism. Most of the cells are 70% water as it is the most abundant molecule that makes the cytoplasm and organelles.
A cell is a structural organization that is composed of various organic, and inorganic substances that also have water as the most abundant molecule. It is the most important component that is needed for cellular and metabolic reactions.
It makes the cytoplasm of the cell that occupies most of the cell portion. Water is the most important reactant and the product of the photosynthesis and respiration processes of plant and animal cells. Water is needed by the cell to transport the nutrients and the waste, and even in cell signaling.
Therefore, cells are made of 70% water as the component.
Learn more about cell here:
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