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4 years ago

Which type of ocean sediment contains the remains of dead organisms?

Physics

2 answers:

konstantin123 [22]4 years ago

4 0

The biogenous sediment contains the remains of dead organisms such as shells and skeletons.

fomenos4 years ago

4 0

Biogenous sediments are a kind of ocean sediments and ooze is one of the biogenic sediments which contains the remains of dead organism.

Explanation:

Ocean sediments are the insoluble materials like rocks or other solid particles which enter the ocean from the land area because of wind blow, floods, ice break and river water mixing etc.

Sediments do not have a definite shape and size. They may agglomerate at various temperatures and they are originate or coagulate at any locations of ocean.

The ocean sediments are classified in four types based on the basic composition of sediments.

They are lithogenous sediments which is composed of rocks or other solid land wastage, biogenous sediments which are composed of remains of dead organisms and their skeletons, hydrogenous sediments which are composed of the chemical wastage released in water from different factories and cosmogenous sediments which are composed of any waste entered in ocean from space like asteroid remains, rocket remains etc.

Among these, the ocean sediment which contains remains of dead organisms are termed as biogenous wastage.

The best example of biogenic sediments composed of dead organism remains are termed as ooze which is composed of 30% biogenic remains of plankton and its skeleton.

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Two blocks with masses 1 and 2 are connected by a massless string that passes over a massless pulley as shown. 1 has a mass of 2

Bess [88]

Answer:

The acceleration of $M_2$ is $a = 0.7156 m/s^2$

Explanation:

From the question we are told that

The mass of first block is $M_1 = 2.25 \ kg$

The angle of inclination of first block is $\theta _1 = 43.5^o$

The coefficient of kinetic friction of the first block is $\mu_1 = 0.205$

The mass of the second block is $M_2 = 5.45 \ kg$

The angle of inclination of the second block is $\theta _2 = 32.5^o$

The coefficient of kinetic friction of the second block is $\mu _2 = 0.105$

The acceleration of $M_1 \ and\ M_2$ are same

The force acting on the mass $M_1$ is mathematically represented as

$F_1 = T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1$

=> $M_1 a = T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1$

Where T is the tension on the rope

The force acting on the mass $M_2$ is mathematically represented as

$F_2 = M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

$M_2 a = M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

At equilibrium

$F_1 = F_2$

$T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1 =M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

making a the subject of the formula

$a = \frac{M_2 g sin \theta_2 - M_1 g sin \theta_1 - \mu_1 M_1g cos \theta - \mu_2 M_2 g cos \theta_2 }{M_1 +M_2}$

substituting values $a = \frac{(5.45) (9.8) sin (32.5) - (2.25) (9.8) sin (43.5) - (0.205)*(2.25) *9.8cos (43.5) - (0.105)*(5.45) *(9.8) cos(32.5) }{2.25 +5.45}$

=> $a = 0.7156 m/s^2$

3 0

4 years ago

Why is AU (astronomical unit) the unit of distance that we used instead of kilometers?

Novay_Z [31]

Answer:

The solar system is enormous, and interstellar space is even bigger. One astronomical unit is equal to 150 million kilometers. This makes it much easier to count the distances if they're in counts of Astronomic Units instead of having to count everything in millions or billions of kilometers

Explanation:

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4 years ago

Which of the following is not a form of skiing?

DanielleElmas [232]

Cross country, because it has to do with running on your feet

8 0

3 years ago

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Which of the following maxims would apply to a person with a Type A personality?

lozanna [386]

The correct answer is C. Lost time is never found again

Explanation:

One of the most relevant personality theories is Type A and Type B personality theory that proposes two main types of personalities by grouping different personality traits. In the case of Type A personality, this refers to individuals that are very organized, impatient, and concerned with time and goals. On the opposite, Type B personality includes individuals that are more relaxed in different aspects.

According to this, one maxim that applies to Type A personality is "Lost time is never found again" because people with this personality are concerned about time and therefore, loss of time is considered highly negative by them. Also, due to their ambitions and concern with goals they want to avoid losing time as this is equivalent to work, money, goals, etc.

4 0

3 years ago

What's the Coulomb's law?

Ulleksa [173]

In layman's term: like charges don't attract while opposite charges doelectrostatic forces between point A( which is charged) and point B (which is also charged) are proportional to the charge of point A and point B. there is also something else about this law that I don't quite remember.

___________________________________________________

Here is the formula:

F = k x Q1 x Q2/d^2

What the formula means:

F=force between charges

Q1 and Q2= amount of charge

d=distance between these two charges

k= Coulombs constant (proportionally constant)

________________________________________________

I think that about covers it and hopefully this helped.

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3 years ago

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