Can someone answer fast

the answer is "all organisms evolve at the same rate" :)

Answer:

answer is b

Explanation:

Answer: 6.24 km

Explanation:

Given

The magnitude of the first vector(say) [tex]\left | a\right |=5\ km[/tex]

the magnitude of the second vector(say) [tex]\left | b\right |=7\ km[/tex]

the angle between them is [tex]120^{\circ}[/tex]

The resultant vector magnitude is given by

[tex]\left | \vec{R}\right |=\sqrt{a^2+b^2+2ab\cos \theta}[/tex]

[tex]\left | \vec{R}\right |=\sqrt{5^2+7^2+2\times 5\times 7\cdot \cos 120^{\circ}}\\\left | \vec{R}\right |=\sqrt{74-35}=\sqrt{39}\\\left | \vec{R}\right |=6.24\ km[/tex]

Answer:

 θ = 64.5º

Explanation:

To find the angles of a vector with respect to some axis of a coordinate system, the tangent function is used.

           tan θ = [tex]\frac{y}{x}[/tex]

where y is the opposite leg and x is the adjacent leg

in this case the angle is

        θ = tan⁻¹   [tex]\frac{A_y}{A_x}[/tex]

let's calculate

        θ = tan⁻¹ [tex]\frac{15.9}{ 7.6}[/tex]

        θ = tan⁻¹ 2.09

        θ = 64.5º

this angle is with respect to the positive pâté of the x axis

Answer:

Distance covered by Anthony is 3 km. Don't know about displacement though.

Answer:

hola

Explanation:

jffkbjkcvncncjcncjcjchchchcjcjcjcjcjckgmndjekbm hdfstfm mvndbfncn bdhwhgmvmch

Answer:

"a prank and an Internet meme involving an unexpected appearance of the music video for the 1987 Rick Astley song "Never Gonna Give You Up". The meme is a type of bait and switch using a disguised hyperlink that leads to the music video."

Explanation: G O O G L E

Answer:

here:Rick Astley - Never Gonna Give You Up (Official Music Video)

Explanation:

Answer:

The force of the (attraction) between the poles B and C is (maximum) and the force of a (attraction) between the poles A and D is (minimum).

Explanation:

Answer:

c = λ f

Explanation:

In the electromagnetic spectrum, the wavelength and frequency of a specific radiation are related to the speed of the wave, which in this case the speed of light

         c = λ f

where c is the speed of light, λ the wavelength and f the frequency of radiation

Answer:

Explanation:

Frictional force = 7000 N

mass of car = 1300 kg . Initially car was moving uniformly so no force acting on car at that time . After frictional force acts , it creates deceleration or negative acceleration .

acceleration = force / mass

= - 7000 / 1300

= - 5.38 m / s²

Answer:

Answer:

Uv rays

Explanation:

ultraviolet rays of the suun gives force

Answer:

what zones

Explanation:

Answer:

Explanation:

4

Answer: I believe it may be 18m/s I apologize if it isn't but have a great day :DDD

Answer:

see below

Explanation:

1) B, virtual because the when you stand in front of a mirror, the image formed is virtual and Image is laterally inverted

2) D because, when using converging lens , real image is formed, it is inverted and it can also be magnified or diminished when the object is placed at different focal length.

real image can be captured on the screen because light rays meet at the image position

when using converging lens, the image formed if it is virtual is upright.

hope this helps

Answer:

Position.

Explanation:

Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.

This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.

Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement, position, etc.

A reference point refers to a location or physical object from which the motion (movement) of another physical object or body can be determined.

For example, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.

Hence, a reference point allows you to determine the position an object.

Answer:

If the atoms get two close then the nuclii will repell each other.

Explanation:

Since electrons are negative they are attracted to the nucleus because it is positive. If two atoms get close enough together then the electrons of each atom will be attracted to both nuclii.

.c ...energy

Explanation:

Amplitude does not affect wavelength. It also does not affect wave speed. Amplitude is the energy of the wave measured from the rest position to the top of the crest. A wave with more energy has a higher up crest/ higher amplitude.

As the amplitude of a mechanical wave increases, the quantity which increases is: C. energy.

A mechanical wave can be defined as a type of wave that requires a medium for its propagation and it creates a disturbance in the medium. Thus, a good example of mechanical wave is sound wave, which is typically transported in a perpendicular direction.

Amplitude refers to the maximum displacement of a wave when measured from its equilibrium position. Also, the amplitude of a mechanical wave has no effect on the following:

Read more on wave here: https://brainly.com/question/19250621

Answer:

turtle

Explanation:

Answer:

A and B

Explanation:

They contain Chlorophyll

They are relatively tall

Answer:

V = 360 kV

Explanation:

Given that,

Charge, q = -2µC

We need to find the electric potential difference of 5cm from a point charge.

We know that the formula for the electric potential is given by :

[tex]V=\dfrac{kq}{r}\\\\V=\dfrac{9\times 10^9\times 2\times 10^{-6}}{0.05}\\\\V=360000\ V[/tex]

or

[tex]V=360\ kV[/tex]

So, the electric potential difference is 360 kV.

Answer:

C, it is not moving

it has no potential

Answer:

materials that allow many electrons to flow freely are caused conductors such as copper, silver, aluminum, hydrochloric solution, sulfuric acid, and salt water. in contrast materials which allow few electrons to flow are called insulators such as plastic, rubber, glass, and dried paper.

Explanation:

Hope this helped Mark BRAINLEST!!

Answer:

The Moon spins in space in a movement called rotation. Oddly enough, it also takes the Moon about 27 days to spin around once (which is much slower than Earth's rotation, which only takes 24 hours). That means the Moon goes all the way around Earth in the same amount of time it takes to spin around just once!

Answer:

D) 735 J(oules)

Explanation:

Work is defined as force * distance

Force is defined as mass * acceleration

Given a mass of 15 kg and a gravitational acceleration of 9.8 m/s² since the box is being lifted up, the force being applied to the box is 15 kg * 9.8 m/s² = 147 N

Since the distance is 5 meters, the work done is 147 N * 5 m = 735 N/m = 735 J, making D the correct answer.

Uranium is an element. Uranium is a pure substance kind of matter. Thus, the correct option is A.

A pure substance is a single type of matter which cannot be separated or divided into other smaller kinds of matter through any kind of physical means or chemical decomposition. A pure substance always has a definite and a constant composition. A mixture is a physical combination which is made up of two or more kinds of pure substances in which each of the substance retains its own chemical identity in the compound.

Uranium is a chemical element with the symbol of U for its representation and the atomic number of 92. Uranium element is a silvery-grey metal in the actinide series of the periodic table of elements. A uranium atom has both 92 protons and 92 electrons, of which 6 of these electrons are valence electrons.

Therefore, the correct option is A.

Learn more about Pure substance here:

https://brainly.com/question/24462192

#SPJ1

Answer:

A

Explanation:

Answer:

it'll be 0

Explanation:

Answer:

mass equals 375 kg

Explanation:

f=ma

f=7500

a=20

m=f/a

m=7500/20

m=375

1500 kg  is the mass of the car​.

Newton's second law of motion describes the relationship between an object's mass and the amount of force needed to accelerate it.

Newton's second law is often stated as,

F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a).

According to the question,

Mass = 20m/s , Time = 4s , Force = 7500 N

a = Δv/Δt

a = 20m/s / 4s

a = 5 m/s²

If F = ma then,

7500 N =  m x 5 m/s²

m = [tex]\frac{7500 N }{ 5m/s^{2} }[/tex]

m = 1500 kg

Therefore,

1500 kg  is the mass of the car​.

Learn more about Newton's second law of motion here:

https://brainly.com/question/13447525

#SPJ2