I’ll literlly give you points
and make you brainiest

Answer:

flows quickly

Answer:

Angle of diffraction for second order maxima is θ = 18.941°

Explanation:

From the question it is given that

wavelength of incident light = λ = 541 nm = 541 x [tex]10^-^9 m[/tex]

order of maxima = n =2

diffraction grating has 600 lines per mm

⇒ distance between two slit is [tex]\frac{1mm}{600}[/tex] = 1.66 x [tex]10^-^6[/tex] m

using the relation of Braggs diffraction formula i.e.,

2dsinθ = nλ ..................................(1)

where, d = distance between two lines of grating

θ is the angle of diffraction

n= order of maxima

λ is the intensity of incident photon

on substituting the respected values in relation (1) we get,

2 x 1.66 x [tex]10^-^6[/tex]m sinθ = 2 x 541 x [tex]10^-^9 m[/tex]

⇒ sinθ = 0.3246

⇒ θ = [tex]sin^-^1(0.3246)[/tex] = 18.941 °

Answer:

because the gas within the black box will absorb more heat than that in the surrounding

Explanation:

this is because the black color has a tendency of absorbing heat

Answer:

50,000 J because of the transformation of energy

Explanation:

Answer:

gravity and friction

Explanation:

Answer:28m/s

Explanation:I got one point so yeah hope this help

When a car traveling at 10 m/s accelerates at 3 meters/ second² for 6 seconds, then the final velocity of the car would be 28 meters per second.

There are three equations of motion given by  Newton

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

As given in the problem, a car traveling at 10 m/s accelerates at 3 m/s^2 for 6 seconds,

the initial velocity of the traveling car = 10 m/s

time =  6 seconds,

acceleration = 3 meters/ second²

With the help of the first equation of the motion, we can calculate the final velocity of the car,

v = u + at

v = 10 + 3*6

v = 28 m/s

Thus, the final velocity of the car would be 28 meters per second.

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Answer:

Formular of kinteic energy is 0.5 × (mass x velocity)²

0.5 × 2500 kg × 35² =1,531,250 jules

Answer:

The pressure of the air in the tyre is 20 kPa

Explanation:

The parameters for the bicycle pump and tyre are;

The volume of air contained in the bicycle pump, V₁ = 20 cm³

The pressure of the air contained in the bicycle pump, P₁ = 100 kPa

The volume (available) of the tyre, where the air is pumped, V₂ = 100 cm³

Let P₂ represent the pressure in the tyre after the air is pumped

By Boyle's law, we have that at constant temperature, the volume of a given mass of gas is inversely proportional to its pressure;

Mathematically, Boyle's law gives the following equation;

P₁ × V₁ = P₂ × V₂

∴ P₂ = (P₁ × V₁)/V₂

Substituting the known values gives;

P₂ = (100 kPa × 20 cm³)/(100 cm³)

∴ P₂ = 100 kPa × 1/5 = 20 kPa

P₂ = 20 kPa

The pressure of the air in the tyre = P₂ = 20 kPa.

Answer:

Its true i'm pretty sure

Explanation:

Answer:

The answer is True

Explanation:

because it is and I suck at explaining

B.batangas po

Explanation:Yan Lang po Ang Alam ko

Answer:

its b

Explanation:

cause im in  7th grade ive been asked the same question

Answer:

1.07m/s²

Explanation:

From the question we are given the following

applied force Fapp = 450N

mass of the safe m = 100kg

Weight of the safe W = 980N

coefficient of kinetic friction n = 0.35

Required

Acceleration of the safe

According to Newton's second law

\sum Fx = ma

Fapp - Ff = ma

Ff is the frictional force

Fapp - nmg = ma

450 - 0.35(100)(9.8) = 100a

450 - 343= 100a

107 = 100a

a = 107/100

a = 1.07m/s²

Hence the acceleration of the safe is 1.07m/s²

Answer:

Breakdown of rocks

Hope this helps :)

Answer:

Disintegration of rocks without chemical change.

Answer:

ones longer than the other daa

Explanation:

Answer:

well, because of the moon!

Explanation:

you see, the moon is what controls the waves. waves are most commonly caused by wind. wind-driven waves, or surface waves, are created by the friction between wind and surface water. as wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. the gravitational pull of the sun and moon on the earth also causes waves. so when the gravitation pull is weak, it creates the shorter wavelengths. without a stong pull, they don't go as far. when the pull is strong, the waves with longer wavelengths go further.

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

Explanation:

gases are well separated with no regular arrangement.

solid are tightly packed usually in regular

pattern.

Answer:

They are Transverse Waves.

Answer: Transverse waves

Answer:

The spring stretches or compresses 0.8 m (80 cm)

Explanation:

Hooke's Law

The force (F) needed to stretch or compress a spring by some distance Δx is given by

[tex]F=-k\Delta x[/tex]

Where k is a constant factor characteristic of the spring.

We are given the constant of a spring k=50 N/m and it's required to calculate the displacement Δx produced by a force of F=40 N. Solving for Δx:

[tex]\displaystyle \Delta x=\frac{F}{k}[/tex]

[tex]\displaystyle \Delta x=\frac{40}{50}[/tex]

Calculating:

[tex]\displaystyle \Delta x=0.8\ m[/tex]

The spring stretches or compresses 0.8 m (80 cm)

Answer:

Commensalism

Explanation:

Trust Me

The symbiotic relationship in which one organism benefits and the other is harmed (+/-) is called parasitism. For example, infectious microbes living in our body.

The long term relationship between two different kind of living organism is called symbiosis. There are different types symbiotic relations namely, mutualism, commensalism, parasitism etc.

The interaction in which both organism gets helped by each other is called mutualism. For example, fid fruit and flies. If only one organism is helped by the interaction and the other is not affected is called commensalism.

symbiotic relationship in which one organism benefits and the other is harmed (+/-) is called parasitism. The organisms which make threat to the other by this interaction are called parasites.

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Answer:

27.39 m/s

Explanation:

From the question given above, the following data were obtained:

Deceleration (a) = –3 m/s²

Distance (s) = 125 m

Final velocity (v) = 0 m/s

Initial velocity (u) =?

The initial velocity (u) of the car can be obtained as follow:

v² = u² + 2as

0² = u² + (2 × –3 × 125)

0 = u² + (– 750)

0 = u² – 750

Collect like terms

0 + 750 = u²

750 = u²

Take the square root of both side

u = √750

u = 27.39 m/s

Thus, the initial velocity of the car was 27.39 m/s

Answer:

Styrofoam would be the best insulator because it traps the air in small pockets, blocking the flow of heat energy.

Explanation:

Answer:

[tex]F=1.98\times 10^{20}\ N[/tex]

Explanation:

Given that,

The mass of a Moon, [tex]M_m=7.35\times 10^{22}\ kg[/tex]

The mass of the Earth, [tex]M_e=5.98\times 10^{24}\ kg[/tex]

The moon's mean orbit distance around the earth is, [tex]r=3.84\times 10^8\ m[/tex]

We need to find the gravitational force exerted on the moon by the Earth.

The formula of gravitational force is given by :

[tex]F=G\dfrac{M_mM_e}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{7.35\times 10^{22}\times 5.98\times 10^{24}}{(3.84\times 10^8)^2}\\\\F=1.98\times 10^{20}\ N[/tex]

So, the required force is [tex]1.98\times 10^{20}\ N[/tex].

Explanation:

The speed of rotation of Venus is slower than that of Earth that is why a day on Venus is longerthan Earth's day. Whereas, Venus is closer to sun than Earth, this means Venus trajectory of revolution is smaller than that of Earth.Therefore, a year on Venus is shorter than Earth's year.

The star’s core shrinks, this happens first when a star begins to run out of fuel. Hence option A is correct.

A star is a type of celestial object that consists of a bright spheroid of plasma kept together by self-gravity. The Sun is the closest star to Earth. Many other stars can be seen with the open eye at night, but due to their great distances from Earth, they appear as fixed points of light. Many of the brightest stars have proper names, and the most prominent stars have been classified into constellations and asterisms. Astronomers have put together star catalogues that identify known stars and offer conventional stellar designations. An estimated 1022 to 1024 stars exist in the visible cosmos. Only about 4,000 of these stars can be seen with the open eye, and they are all located within the Milky Way galaxy.

Hence option A is correct.

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Answer:

0.25

Explanation:

According to newtons law of motion

\sum F_x = ma

F_f =  ma

nR = ma

nmg = ma

ng = a

n = a/g

g is the acceleration due to gravity

Given

a = 2.42m/s²

g = 9.8m/s²

Substitute into the formula;

n = 2.42/9.8

n = 0.25

Hence the coefficient of kinetic friction is 0.25

Answer:

0.247

Explanation:

I had the same question and this is the correct answer.

Answer:

The highest conductance results from;

Large cross-sectional area, short pipe

Explanation:

The conductance, G, of a material is a measure of the rate or ease of electricity conduction of the material

[tex]The \ conductance \ G = Current/(Potential \ difference) = \dfrac{I}{V} =\dfrac{1}{R} = \dfrac{A}{\rho \cdot l}[/tex]

Where;

I = The current

V = The voltage (Potential difference)

R = The resistance

A = The cross-sectional area of the conductor

L = The length of the conductor

ρ = The resistivity of the conductor

Therefore, "G" is directly proportional to "A"  ang "G" is inversely proportional to "l" from which we have that as the cross-sectional area increases the conductance increases and as the length of the pipe decreases the conductance increases.

The highest conductance is given by a large cross-sectional area and a short pipe.

Answer:

Large cross-sectional area, short pipe

Explanation:

Answer:A pendulum consists of a ball at the end of a massless string of length 1.4 m. The ball is released from rest with the string making an angle of 20 degrees with the vertical. What is the maximum speed of the pendulum?

Explanation: Have a great day and oh here is a little something to warn the great people. In the comments....

;)

The magnitude of inertia depends on the mass of the body.

The term inertia has to do with the degree of resistance to motion. We know that an object will continue in its state of rest or uniform motion unless it is acted upon by an external force.

The magnitude of inertia depends on the mass of the body. Since the truck is more massive than the car, it follows that a moving truck takes a much longer time to stop than that taken by a car when brakes are pressed at the same time​.

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Answer:

Isobars are similar to height lines on a geographical map, and they are drawn so that they can never cross each other. Meteorologists use isobars on weather maps to depict atmospheric pressure changes over an area and to make predictions concerning wind flow.

Explanation:

Answer:Isobars are similar to height lines on a geographical map, and they are drawn so that they can never cross each other.

Explanation: