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damaskus
1 month ago
15

Scientists often use models to study the movement of continents. Why might scientists use a model to show this movement? A. Extr

emely fast movement is not easily observed directly. B. Extremely slow movement is not easily observed directly. C. Extremely complex movement is not easily observed directly. D. Extremely dangerous movement is not easily observed directly.​
Physics
2 answers:
Softa [3K]1 month ago
5 0
The correct answer is B. Extremely slow movement is not easily observed directly.
Maru [3.3K]1 month ago
3 0
For many years, paleontologists have maintained that the extinction of dinosaurs was primarily due to climate changes linked to gradual shifts in the arrangement of continents and oceans as a consequence of plate tectonics. Throughout the Cretaceous period, which marked the peak of dinosaur existence, extensive shallow seas intermittently covered vast portions of land. Evidence from various geological sources, such as chemical clues found in ocean floor sediments, suggests that the climate during the Late Cretaceous was warmer and more stable compared to the present. The daytime temperatures were moderate, as were the nighttime chills, with summers and winters being neither excessively hot nor incredibly cold. It is likely that the shallow continental seas helped regulate the air temperature nearby, maintaining a consistent climate.
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You are waiting to turn left into a small parking lot. a car approaching from the opposite direction has a turn signal on. you s
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1 month ago
An object with charge q=−6.00×10−9C is placed in a region of uniform electric field and is released from rest at point A. After
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it’s a

Explanation:

utilized Google

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2 months ago
In order for the ball to be able to make a complete circle around the peg, there must be sufficient speed at the top of its arc
kicyunya [3294]

Answer:

Explanation:

Let T represent the tension in the swing.

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where v denotes the velocity needed to maintain the circular motion.

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The threshold velocity can be expressed as mg-0=\frac{mv^2}{r}

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By comparing the two states using conservation of energy, we find v_0^2=4gr+gr

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6 0
2 months ago
A very small round ball is located near a large solid sphere of uniform density. The force that the large sphere exerts on the b
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Opción e

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La Ley de Gravitación Universal indica que toda masa puntual atrae a otra masa puntual en el universo con una fuerza que se dirige en línea recta entre los centros de masa de ambos, siendo esta fuerza proporcional a las masas de los objetos y inversamente proporcional a su separación. Esta fuerza atractiva siempre es dirigida del uno hacia el otro. La ley es aplicable a objetos de cualquier masa, sin importar su tamaño. Dos objetos grandes pueden ser considerados masas puntuales si la distancia entre ellos es considerablemente mayor que sus dimensiones o si presentan simetría esférica. En tales casos, la masa de cada objeto puede ser modelada como una masa puntual en su centro de masa.

La misma fuerza actúa sobre ambas bolas.

5 0
2 months ago
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