What is the minimum water velocity needed in a stream to maintain the transportation of the smallest diameter boulder?

What is the minimum water velocity needed in a stream to maintain the transportation of the smallest diameter boulder?

What is the minimum water velocity needed in a stream to maintain the transportation of the smallest boulder? A stream’s velocity decreases from 100 cm/s to 5 cm/s.

In which temperature zone of Earth’s atmosphere is the polar jet stream located?

The 50°-60° N/S region is where the polar jet located with the subtropical jet located around 30° N . Jet streams vary in height of four to eight miles and can reach speeds of more than 275 mph (239 kts / 442 km/h ).

What is the inferred age of our solar system in millions of years?

By studying several things, mostly meteorites, and using radioactive dating techniques, specifically looking at daughter isotopes, scientists have determined that the Solar System is 4.6 billion years old. Well, give or take a few million years.

Which type of weathering is primarily responsible for cave formation?

Sometimes, chemical weathering dissolves large portions of limestone or other rock on the surface of the Earth to form a landscape called karst. In these areas, the surface rock is pockmarked with holes, sinkholes, and caves.

Why does a jet stream meander?

In planetary atmospheres, they are due to the variation in the Coriolis effect (When temperature contrast is low, speed of jet stream is low, and Coriolis force is weak leading to meandering) with latitude. Rossby waves are formed when polar air moves toward the Equator while tropical air is moving poleward.

How do jet streams affect weather?

The jet stream flows high overhead and causes changes in the wind and pressure at that level. This affects things nearer the surface, such as areas of high and low pressure, and therefore helps shape the weather we see. Sometimes, like in a fast-moving river, the jet stream’s movement is very straight and smooth.

What is the minimum age of the planetary system?

Meteorites, which are the very components of our planets (through the process of accretion), are the remnants of the Solar System’s origins. Dating meteorites thus allows us to give a lower age to the Solar System (4,56 billion years old).

At which point is the water most likely to have the greatest velocity?

Stream velocity is the speed of the water in the stream. Units are distance per time (e.g., meters per second or feet per second). Stream velocity is greatest in midstream near the surface and is slowest along the stream bed and banks due to friction.

What is the terminal velocity of a particle?

Terminal velocity is the constant velocity the particle attains when acceleration becomes 0.

How is circular motion related to the centripetal force?

Circular motion velocity, circular velocity, v, uniform circular motion in a horizontal plane a c = v 2 / r = 4π 2 r/ T 2. A body moving in a circular path is accelerating. So a resultant force must reacting on it, acting towards the centre of the circle, called the centripetal force.

Where does the acceleration point in circular motion?

Circular motion velocity is always at a tangent to the circle. For circular motion at constant speed, the centripetal (“centre seeking”) acceleration vector always points towards the centre of the circle. The centripetal force keeps the object moving in the circle and the direction of the force is towards the centre of the circle.