Please help ASAP I’ll give brainly and 10 points

Answer:

i. The velocity ratio of the plane is 4.

ii. The mechanical advantage of the plane is 3.

Explanation:

i. The velocity ratio (VR) of an inclined plane is ratio of its length to the height. It is given as;

VR = [tex]\frac{length of the plane}{height}[/tex] = [tex]\frac{l}{h}[/tex]

Given: l = 12 m, L = 600 N, E = 200 N, h = 3 m.

So that,

VR = [tex]\frac{12}{3}[/tex]

     = 4

The velocity ratio of the plane is 4.

ii. Mechanical advantage (MA) expresses the relationship between the load overcome to effort applied.

MA = [tex]\frac{Load}{Effort}[/tex] = [tex]\frac{L}{E}[/tex]

      = [tex]\frac{600}{200}[/tex]

      = 3

The mechanical advantage of the plane is 3.

Therefore, the velocity ratio of the inclined plane is 4, and its mechanical advantage is 3.

Answer:

105 g.m/s

Explanation:

The law of conservation of momemtum states that initial momemtum is equal to final momentum.

initial momentum of orange ball = 165 g.m/s

initial momentum of green ball = 0 g.m/s

final momentum of orange ball = 60 g.m/s

final momentum of green ball = x

165+0=60+x

⇒x = 165-60= 105 g.m/s

the momentum of the green ball right after the collision =105 g.m/s

Answer:

heyyy

May I Know the full question

Answer:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi. Like herbivores and predators, decomposers are heterotrophic, meaning that they use organic substrates to get their energy, carbon and nutrients for growth and development. While the terms decomposer and detritivore are often interchangeably used, detritivores ingest and digest dead matter internally, while decomposers directly absorb nutrients through external chemical and biological processes. Thus, invertebrates such as earthworms, woodlice, and sea cucumbers are technically detritivores, not decomposers, since they must ingest nutrients - they are unable to absorb them externally.

Explanation:

Answer:

D. Shearing​

Explanation:

D. Shearing​

The Answer is: Shearing

Answer:I had two questions: 1) Shouldnt the equation be : Change of internal energy= Change in Ke or KEi +Ui=KEf+Uf .. I cant seem to understand how the change in KE+ Change in Internal Energy equals 0 2) Also, it has a note which says that if the bullet alone was chosen as a system, then work would be done on it and the heat transfer woudl occur. How would one formulate an equation for this?

Explanation:

Explanation:

The unit of volume derived from SI units(1) is the cubic meter, m3.

Chemists in a laboratory usually deal with much smaller volumes than cubic meters and the metric but non-SI units of liter or litre (L) and milliliter or millilitre (mL or ml) are in common use.

In 1964 the litre was redefined as being equal to exactly 1 cubic decimetre:

1 L = 1 dm3

So 1 milliltre = 1 cubic centimetre

1 mL = 1 cm3 (= 1cc)

Other metric units of measuring volume are given in the table below:

large volume → → → → → → → → → → small volume

name teralitre gigalitre megalitre kilolitre hectolitre decalitre decilitre centilitre millilitre microlitre nanolitre picolitre femtolitre attolitre

symbol TL GL ML kL hL daL dL cL mL µL nL pL fL aL

volume (L) 1012 L 109 L 106 L 103 L 102 L 101 L 10-1 L 10-2 L 10-3 L 10-6 L 10-9 L 10-12 L

The normal force felt by the box has magnitude

F[normal] = (1 kg) g = 9.8 N

so that the maximum magnitude of static friction is

F[s. friction] = 0.8 F[normal] = 7.84 N

In order to get the box to move, (C) a minimum force of 7.84 N is required.

Major land–use changes have occurred in the United States during the past 25 years. The total area of cropland, pastureland and rangeland decreased by 76 million acres in the lower 48 states from 1982 to 2003, while the total area of developed land increased by 36 million acres or 48%. What are the potential economic, social and environmental impacts of land use changes? How does land use change affect agriculture and rural communities? What are the important economic and environmental implications for commodity production and trade, water and soil conservation, open space preservation, and other policy issues? This article addresses some of these issues and their policy implications.

Explanation:

F = MA

200 = 100 * A

A = 200/100

A = 2m/sec^2

Answer:

4

Explanation:

Answer:

Explanation:

Net force = 0

This is a very instructive question to do. Here's what the situation looks like

[tex]====>\box{Couch) }<====\\[/tex]

The two forces are going in opposite directions. One is going 200 N to the right and the other is going 200N to the left.

The net result is 0.

Put in formula form, it looks like this.

Going left is the negative direction

F_right - F_left = 200 - 200 = 0

Answer:

without oxygen because

Answer:

Without oxygen

Explanation:

true because

brick: solid

milk: liquid

ice cube: solid

Answer:

hope this answers will help you

Explanation:

If you find it appropriate then plz mark as brainliest

Answer:

the si unit of electric current is Ampere .the flow of charge in a close circuit is called electric current

Answer:

0.8J

Explanation:

Given parameters:

Force  = 20N

Compression  = 0.08m

Unknown:

Spring constant  = ?

Elastic potential energy  = ?

Solution:

To solve this problem, we use the expression below:

           F = k e

F is the force

k is the spring constant

e is the compression

             20  = k x 0.08

              k  = 250N/m

Elastic potential energy;

       EPE  = [tex]\frac{1}{2}[/tex] k e²    =  [tex]\frac{1}{2}[/tex]  x 250 x 0.08²

 Elastic potential energy = 0.8J

SINGLE TO RIGHT OR CENTER FIELD-On a single to center or right field the first baseman will be the cutoff to home. The shortstop will cover second base.

Answer:

B. chemical to electrical to light

The battery holds chemical energy, which is transformed to electrical energy due to flow of electrons.

The electrons due to their drift velocity which heats up the bulb filament hence producing light.

Answer:

B

Explanation:

because i learned in 5th grade

Answer:

C is the correct answer and i hope ur having a good day UwU

Explanation:

Answer:

melting of rock deep underground.

Explanation:

The melting of rocks deep underground does not produce sedimentary rocks. Most igneous rocks are produced by this process.

When molten rocks underground called magma is solidified in the subsurface, it results into the formation of igneous bodies.

Answer:

29.41%

Explanation:

Given that,

In 1630 at the beginning of European settlement, about 425,000,000 hectares of the United States were covered with trees.

By 2017, the area covered by trees was reduced to 300,000,000 hectares.

We need to find the percentage decrease in the area covered by trees between 1630 and 2017.

The percentage decrease in any value is given by :

[tex]\%=\dfrac{300,000,000 -425,000,000 }{425,000,000 }\times 100\\\\=29.41\%[/tex]

So, the percentage decrease in the area covered by the trees is 29.41%.

Answer:

its b

Explanation:

b

Answer:

Explanation:

The answer should be electromagnetic radiation(can i have a a brainliest) please

The increased levels of ultraviolet -radiation reaching earth can lead to health risks such as sunburn and skin cancer.

Ultraviolet radiation is a high energy wave in the electromagnetic spectrum. The mains source of ultraviolet or UV rays is sun.

The electromagnetic spectrum is the arrangement of radiation based on the increasing order of energy or decreasing order of frequency. UV rays comes in between infra red radiation and visible light.

There are two type of ultraviolet rays namely UV-A and UV-B. In which UV-A has higher penetrating power and causes serious health risks than UV-B.

Reaching UV rays in an increased level to the earth surface will affect human beings as well as other organisms. It causes skin cancer, nausea, burning and other  diseases.

Therefore the two words which suits to fill the statement is UV radiation.

To find more about UV-rays, refer the link below:

https://brainly.com/question/7850703

#SPJ2

Answer:

At the midpoint of the line joining the two equal charges

Explanation:

The midpoint of the line joining the two equal charges has equal distance from each charge. Since the charges are at x = a and x = -a, at the midpoint of the line joining the two equal charges, the magnitude of the electric field experienced as a result of each charge is the same. But these two fields are in opposite direction, hence the net resulting electric field would be equal to zero.

Answer:

bowling

Explanation:

bowling is an example of work because it involves hand movement.