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4 years ago

Sedimentary rock forms _____ loose material is carried by water or wind then settles out forming layers.

1 answer:

5 0

forms as pices of loose material is carried by water or wind, settles out into layers and is then pressed or cemented together

You might be interested in

On a hot summer day, heat waves can be seen rising from the asphalt. What type of heat transfer do the heat waves demonstrate?

Angelina_Jolie [31]

What you see rising from the road ... and call "heat waves" ...
are rising currents of air. The air that's been heated by
contact with the hot asphalt rises. (Why ? By being heated,
it becomes less dense than the other air around it, and the
buoyant force of being a less dense substance in a more dense
fluid makes it rise (float) ).

If we want to paint a complete picture, we can find all three
types of heat transfer going on here:

1). The air getting heated by direct contact with the hot road ==> conduction

2). The hot air rising through the cooler air around it ==> convection

3). How the road got so hot in the first place ==> radiation, from the sun

4 0

3 years ago

Earth's tides are primarily caused by _____.

Fiesta28 [93]

B.) The moon

There you go.

8 0

4 years ago

Read 2 more answers

Which statement best explains why the overall charge on an atom is zero?

aalyn [17]

A: The positive charge if the protons in the nucleus equals the negative charge in the electron cloud.

Protons are positive, electrons are negative, and neutrons have no charge/are neutral

3 0

3 years ago

What would happen to the two balls if one of them were kept positively charged and the charge on the other ball were slowly incr

Whitepunk [10]

Answer:

The force of repulsion between the two balls will increase

Explanation:

The electrostatic force between two charged objects is given by

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1 and q2 are the charges of the two objects

r is the distance between the centres of the two objects

We see that the magnitude of the force is directly proportional to the charges on the two objects. in this problem, we have two positively charged balls (so, there is a force of repulsion between them, since like charges repel each other and unlike charges attract each other), and the positive charge in one of them is slowly increased: this means that either $q_1$ or $q_2$ in the formula is increasing, and so the magnitude of the force is increasing.

6 0

3 years ago

How do you find average velocity (average) from acceleration) and time (t)?

Tasya [4]

Average velocity is defined as the ratio in change in position to change in time,

v[ave] = ∆x/∆t

which on its own doesn't have anything to do with acceleration.

If acceleration is constant, the average velocity is the literal average of the initial and final velocities,

v[ave] = (v[final] + v[initial]) / 2

If this constant acceleration has magnitude a, the final velocity can be expressed in terms of the initial velocity by

v[final] = v[initial] + a*t

and plugging this into the previous equation gives

v[ave] = (v[initial] + a*t + v[initial])/2

v[ave] = v[initial] + 1/2*a*t

If the body in consideration is initially at rest, then

v[ave] = 1/2*a*t

which might be the relation you're looking for. But bear in mind the conditions I've underlined.

If acceleration is not constant and changes over time, so that the acceleration is some function of time a(t), then you can determine the velocity function v(t) by using the fundamental theorem of calculus. You need to know a particular velocity for some time to completely characterize v(t), though. For example, if you're given the initial velocity v[initial] = v(0), then

$\displaystyle v(t) = v(0) + \int_0^t a(u) \, du$

or if you know any other velocity for some time t₀ > 0,

$\displaystyle v(t) = v(t_0) + \int_{t_0}^t a(u) \, du$

8 0

3 years ago