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3 years ago

Which agents contribute to erosion?

Physics

2 answers:

irinina [24]3 years ago

8 0

Answer:

The process known as weathering breaks up rocks so that they can be carried away by the process known as erosion. Water, wind, ice, and waves are the agents of erosion that we

Explanation:

Agents are Water, wind, ice, gravity and waves.

Oduvanchick [21]3 years ago

8 0

Answer: Moving water, ice and glaciers, and human and animals

Explanation:

You might be interested in

Why is measuring the duration of a number of swings a better way to determine the period of a pendulum than by measuring a singl

Alekssandra [29.7K]

Answer:

It is to reduce the expected relative error of the measurement.

Explanation:

If there was a way to measure without error, this method would be unnecessary. In practice, the pesky error is always there. The sources are varied: inexact instrument, small inaccuracies in starting/stopping the timer, etc. But, it is reasonable to assume that such an error is random and has an expected spread that is independent of the actual duration of measurement. Under such assumptions, the methods offers a great advantage:

Let ε denote an additive measurement error. Let the error be random, symmetric (negative/positive), distributed in some fixed range independent of the actual measured value. The error represents an additive component in our measurement, i.e., (measurement) = (true value) + (error). In the case of one period T, we get to measure the duration T':

$T' = T + \epsilon$

so the relative error is

$\frac{|T'-T|}{T}=\frac{|T+\epsilon-T|}{T}=\frac{|\epsilon|}{T}$

In a separate experiment, suppose you measure n periods. Same error applies:

$T_n'=n\cdot T+\epsilon$

we can get a single period by dividing the measured value by n:

$\frac{T_n'}{n}=\frac{n\cdot T +\epsilon}{n}=T+\frac{\epsilon}{n}$

and the relative error of such a result will be:

$\frac{|T+\frac{\epsilon}{n}-T|}{T}=\frac{|\epsilon|}{n\cdot T}$

which is n times smaller than the relative error of the single measurement above. The more periods are included in the measurement, the smaller the expected error!

5 0

3 years ago

How does newtons law of the universal gravitation help scientist describe the universe

Afina-wow [57]

You need to know everything is made of atoms they are always colliding and they are never still because you'd think that every thing in space is still all the time even if it's not making visibly

5 0

3 years ago

Read 2 more answers

Looking for some help with the left side of the table and the questions followed :)

Inessa [10]

Answer:

(1). Going in the order: Gas, Liquid, Solid.

Particle separation: Very large; large; small.

Strength of forces between particles: very weak; weak; strong.

(2). a. The change of state is condensation.

b. The density of the substance is increasing as particles move closer together.

(3). a. The liquid's temperature decreases until it reaches solidification (freezing) point, and then the temperature will remain constant until all of the liquid has solidified.

b. The particles move with less and less energy until they have low enough energy to come together and solidify, then they will release more energy when they come together to form bonds, and vibrate about their equilibrium positions once they are part of a molecular bond.

Additional explanation:

(1). The particle separation in a gas is very large because the gas has a very low density, and since particles are not that close together, the strength of forces between particles is very weak.

The liquid is somewhat more denser than the gas and therefore the particle separation is large but less than that in a gas, The strength of forces between particles is still weak but greater than in a gas.

Finally, particle separation in a solid is small because the solid is still more denser than the liquid, and the strength of forces between particles is strong because it's these forces that give a solid its rigid shape.

(2). a.The change of state of a substance in which particles slow down and move close together is called condensation.

b. As the particles move close together, they are occupying less and less volume; therefore, the density is increasing.

(3). The explanation is already given in the answer.

6 0

4 years ago

Wayne wants to become a lifeguard. For part of the lifeguard test, he has to float in the pool for five minutes. Why does Wayne

Nastasia [14]

Answer:

Explanation:

The gravity is pushing the water downward so Wayne could go down but the water is pushing Wayne to go up which would make him float.

6 0

3 years ago

Una esfera de radio 0.4m tiene una masa de 300kg, se desea sumergir en agua para saber si flota o no. En este ejercicio use la d

iragen [17]

Answer:

La esfera no flotará pero se hundirá cuando se coloque en el agua porque su densidad es mayor que la del agua.

Explanation:

De la pregunta anterior, se obtuvieron los siguientes datos:

Radio (r) de la esfera = 0,4 m

Masa de esfera = 300 Kg

Densidad del agua = 1000 Kg / m³

A continuación, determinaremos el volumen de la esfera. Esto se puede obtener de la siguiente manera:

Radio (r) de la esfera = 0,4 m

Pi (π) = 3,14

Volumen (V) de la esfera =?

V = 4/3 πr³

V = 4/3 × 3,14 × 0,4³

V = 12,56 / 3 × 0,064

V = 0,27 m³

A continuación, determinaremos la densidad de la esfera. Esto se puede obtener como se ilustra a continuación:

Masa de esfera = 300 Kg

Volumen de esfera = 0,27 m³

Densidad de esfera =?

Densidad = masa / volumen

Densidad de la esfera = 300 / 0,27

Densidad de la esfera = 1111,11 Kg / m³

Comparando la densidad del agua y la de la esfera.

Sustancia >>>>>>> Densidad

Agua >>>>>>>>>>> 1000 Kg / m³

Esfera >>>>>>>>>> 1111,11 Kg / m³

De la ilustración anterior, podemos ver que la densidad de la esfera es mayor que la del agua.

Por lo tanto, la esfera no flotará sino que se hundirá cuando se coloque en el agua porque su densidad es mayor que la del agua.

4 0

3 years ago