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3 years ago

In what ways does a stream transport its load, and which part of the load moves most slowly? Select all that apply.

Physics

1 answer:

vodka [1.7K]3 years ago

5 0

Answer: Option (B)

Explanation: A stream transports its materials in different ways-

Dissolved load- Here, the materials gets dissolved when mixed with water and flows along with the stream.
Suspended load- Here, the materials are not fully dissolved in the water but they can be carried from one place to another in suspension mode, by the river.
Bed load- Bed load are transported in three different ways such as-

Sliding- here, the materials slides down along a curved surface under the water and carried away.
Rolling- here, the materials are solid and due to force exerted by water, it can roll and move to distant places.

Saltation- here, the materials are carried away in a series of jumps.

Thus, the most appropriate answer is option (B) i.e bedload.

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Joe was asked to describe the movements the Earth makes as it rotates on its axis and revolves around the sur

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Answer:

Explanation:

The earth rotates on it's axis every 24 hours not revolves.

Imagine rotation as a top spinning on the ground. revolving means if you tied a string to the top and spun it around your body in a circle. (hope this helps:)

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4 years ago

Read 2 more answers

At what height must a 6-kilogram object be placed to have 12 joules of

Serga [27]

Answer:

0.2m

Explanation:

Using E=mgh

12=6*9.8*h

h=0.2m (1 d.p.)

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4 years ago

A satellite revolves around a planet at an altitude equal to the radius of the planet. the force of gravitational interaction be

padilas [110]

Let
M = the mass of the planet
n = the mass of the satellite.
r = the radius of the planet

When the satellite is at a distance r from the surface of the planet, the distance between the centers of the two masses is 2r.
The gravitational force between them is
$f_{0} = \frac{GMm}{(2r)^{2}} = \frac{1}{4} ( \frac{GMm}{r^{2}} )$
where
G = the gravitational constant.

When the satellite is on the surface of the planet, the distance between the two masses is r.
The gravitational force between them is
$f_{4} = \frac{GMm}{r^{2}} =4f_{0}$

Answer: $f_{4} = 4f_{0}$

5 0

4 years ago

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Which of the following is not a component of a normal experiment?

MaRussiya [10]

Answer:

D. Validity group

Explanation:

A validity group is not necessarily a component of a normal experiment.

A normal experiment is made up of the dependent variables, independent variables, and most times the control group.

The dependent variable is one that relies on the outcome of the effect produced from the experimental design
The independent variable is the one that causes a desired effect under the study.
The control group is a group that does not receive any treatment nor attenuation of the conditions.

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3 years ago

A ball is thrown into the air with 100 J of kinetic energy, which is transformed to gravitational potential energy at the top of

masya89 [10]

To solve this problem we could apply the concepts given by the conservation of Energy.

During the launch given in terms of kinetic energy and reaching the maximum point of the object, the potential energy of the body is conserved. However, part of all this energy is lost due to the work done by the friction force due to friction with the air, therefore

$E_T = PE + KE -W_f$

The potential and kinetic energy are conserved and are the same PE = KE and this value is equivalent to 100J, therefore

$E_T = 100-W_f$

The kinetic energy will ultimately be less than 100J, so the correct answer is C.

8 0

3 years ago