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3 years ago

15

The distance between two crests of a transverse wave is referred to as the Question 1 options: medium. amplitude. wavelength. ph

ase.

1 answer:

Oksi-84 [34.3K]3 years ago

5 0

Answer:

Wavelength

Explanation:

Wavelength

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What can the vacuole hold? (check all that apply) <br> A) water<br> B) waste<br> C) nutrients (food)

Verizon [17]

Answer:

C & A 100000%

Explanation:

i took this test before and i just made sure on safari . Its food (nutrients) and water

7 0

3 years ago

If the distance between a neutral atom and a point charge is quadrupled, by what factor does the force on the atom by the point

IgorLugansk [536]

New force or Old Force

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4 years ago

The moons of Mars, Phobos (Fear) and Deimos (Terror), are very close to the planet compared to Earth's Moon. Their orbital radii

tankabanditka [31]

Answer:

$0.2528$

Explanation:

To calculate the period we need the formula:

$T=\frac{2\pi r^{3/2}}{\sqrt{GM}}$

Where $r$ is the radius of the moon, $G$ is the universal constant of gravitation and $M$ is the mass of mars.

The period of Phobos:

$T_{p}=\frac{2\pi r_{p}^{3/2}}{\sqrt{GM}}$

The period of Deimos:

$T_{D}=\frac{2\pi r_{D}^{3/2}}{\sqrt{GM}}$

The ratio of the period of Phobos and Deimos:

$\frac{T_{p}}{T_{D}}=\frac{\frac{2\pi r_{p}^{3/2}}{\sqrt{GM}}}{\frac{2\pi r_{D}^{3/2}}{\sqrt{GM}}}$

$\frac{T_{p}}{T_{D}}=\frac{\sqrt{GM}2\pi r_{p}^{3/2}}{\sqrt{GM}2\pi r_{D}^{3/2}}$

Most terms get canceled and we have:

$\frac{T_{p}}{T_{D}}=\frac{r_{p}^{3/2}}{r_{D}^{3/2}}$

According to the problem

$r_{p}=9,378km\\r_{D}=23,459km$

so the ratio will be:

$\frac{T_{p}}{T_{D}}=\frac{(9,378)^{3/2}}{(23,459)^{3/2}}=\frac{908166.22}{3593058.125}=0.25275$ ≈ $0.2528$

the ratio of the period of revolution of Phobos to that of Deimos is 0.2528

8 0

3 years ago

A cyclist intends to cycle up a 7.70o hill whose vertical height is 126m. Assuming the mass of bicycle plus person is 75.0kg, ca

Ksivusya [100]

Answer:

92704.5 J

596.44737 N

Explanation:

m = Mass of person + bicycle = 75 kg

g = Acceleration due to gravity = 9.81 m/s²

h = Vertical height = 126 m

$\theta$ = Angle = 7.7°

d = Diameter = 0.388 m

Work done against gravity is given by

$P=mgh\\\Rightarrow P=75\times 9.81\times 126\\\Rightarrow P=92704.5\ J$

Work done is 92704.5 J

Force required is given by

$F=\dfrac{mgrsin\theta}{\pi d}\\\Rightarrow F=\dfrac{75\times 9.81\times sin7.7\times 5.12}{\pi\times 0.388}\\\Rightarrow F=596.44737\ N$

The force is 596.44737 N

7 0

3 years ago

Learning Task 3: Read the characteristics of mixtures given in the second column. Identify if it is homogeneous or heterogeneous

madreJ [45]

1. Components can be separated by physical means [heterogenous]

2. The additive component is so<em> </em>finely dispersed in the main ingredient such that it can't be seen [homogenous]

3. Particles are uniformly distributed [homogenous]

4. The substances are identified in<em> </em>different phases [heterogenous]

5. Particles are<em> </em>non-uniformly distributed [heterogenous]

A homogenous mixture is a type of mixture in which the composition is uniform throughout the mixture.

Characteristics of a homogenous mixture:

the mixture is uniform
the composition is the same
it consists of one phase

A heterogenous mixture is a type of mixture in which the composition of the mixture is not uniform

Characteristics of heterogenous mixture include;

it contains two or more ingredients or phases.

different phases mixed together, which are physically separated

samples obtained from different parts of the mixture may have a different composition

In the given characteristics of the mixture in the question we can classify them as follows;

1. Components can be<u> separated by physical mean</u>s --heterogenous

2. The additive component is so<em> </em><u>finely dispersed </u>in the main ingredient such that it can't be seen --- homogenous

3. Particles are<u> uniformly distributed </u>---- homogenous

4. The substances are identified in<em> </em><u>different phases</u> ---- heterogenous

5. Particles are<em> </em><u>non-uniformly distributed </u>---- heterogenous

Learn more here: brainly.com/question/18224061

6 0

3 years ago