In 2 to 3 sentences explain the roles of chloroplast and mitochondria in the process of plant cells gaining energy.

Explanation:

[tex]a = \frac{force}{mass } = \frac{2.4}{0.94} = 2.5 \frac{m}{ {s}^{2} } [/tex]

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Answer: 2.6 m/s²

Explanation: acceleration = f/m

Force = 2.4 N

Mass = 0.94 kg

Acceleration = ?

Acceleration = 2.4 N/0.94 kg = 2.5531914894 (or 2.6).

How to round it: round to the nearest tenth of a m/s²; look at the tenth place, which is 2.(5), it's greater than 5, so you wanna change it into a 6.

Hope this helped.

Have a good day. :)

Answer:

I am not sure but I think it's choice c.

c)1.485 m

Explanation:

I hope this helps.

Answer:

A ball rolling will eventually stop because pf the force of inertia acting on the ball.

Explanation:

Answer:

Its motion is accelerating backward or changing velocity in a backward motion.

Explanation:

We know acceleration is a vector quantity, therefore, containing both magnitude and direction. The negative sign represent direction so here, it's representing a backward motion. The magnitude here is 3, meaning that is is moving at a changing velocity of 3 m/s, meaning each second, the velocity increases 3 m/s going backward.

Answer:

Leavitt

Explanation:

In the course of her work, Leavitt discovered 2,400 new variable stars, half the known ones in her day. A certain group of variable stars, later called Cepheid variables, fluctuate in brightness (luminosity) in a regular pattern called their “period.” This period ranges from about one day to nearly four months.

hope this helps have a good day and can i have brainliest plz

Answer:

The acceleration of the plane is -4.35 m/s²

Explanation:

Given;

initial speed of the airplane after landing, u = 91 m/s

final speed of the airplane after landing, v = 0

distance traveled, s = 952 m

Apply the following kinematic equation to determine the acceleration of the airplane;

v² = u² + 2as

0 = u² + 2as

0 = 91² + (2 x 952)a

0 = 8281 + 1904a

- 8281 = 1904a

a = - 8281 / 1904

a = -4.35 m/s²

Therefore, the acceleration of the plane is -4.35 m/s².

Answer:

Explanation:

We love biden! We love biden! We hate trump!

Like if you agree :)

Answer:

its c

Explanation:

I can't see the joints maybe ball and socket

Answer:

Explanation:

Given data

mass m1=65kg

velocity v1=?

mass m2=0.15kg

v2=50m/s

We know that the expression for the conservation of momentum is given as

0=m1v1+m2v2

we want to find v1

v1=(m2v2)/m1

v1=0.15*50/65

v1=7.5/65

v1=0.115

v1=0.12m/s

Therefore the recoil velocity is 0.12m/s

Answer:

Well that is not true we use both Celsius and Fahrenheit thermometer

it just depends on where you are from, If you are from Celsius dominated country you use Celsius to measure whereas if you are from Fahrenheit dominated country you use it to measure the body heat.

If you have seen money heist (a netflix show), Helsinki uses Celsius Thermometer to check the body temperature of Arturo BECAUSE in spain they use celsius thermometer.

HOPE MY ANSWER WAS HELPFUL xD

Answer:

v₂/v₁ = 0.777

Note: The question is incomplete. The complete question is given below;

A block of mass m1 1.40 kg moving at 12.00 m/s undergoes a completely inelastic collision with a stationary block of mass m2 0.400 kg . The blocks then move, stuck together, at speed v2. After a short time, the two-block system collides inelastically with a third block, of mass m3 2.70 kg, which is initially at rest. The three blocks then move, stuck together, with speed v3.(Figure 1) Assume that the blocks slide without friction Express your answer numerically using three significant figures

Part A Find , the ratio of the velocity 2 of the two-block system after the first collision to the velocity V1 of the block of mass m1 before the collision.

Explanation:

Velocity, v₁ (of mass m₁) = 12.0 m/s

Velocity of the two masses after inelastic collision = v₂

According to the principle of conservation of linear momentum, momentum before collision is equal to momentum after collision

m₁u₁ + m₂u₂ = (m₁ + m₂)v₂

where m₁ = mass of first block = 1.40 kg

u₁ = initial velocity of first block = 12.0 m/s

m₂ = mass of second block = 0.40 kg

u₂ = initial velocity of second block = 0 m/s

v₂ = final velocity of the two-block system = ?

Substituting the values in the conservation of momentum formula

1.4 * 12 + 0.4 * 0 = (1.4 + 0.4) * v₂

16.8 + 0 = 1.8 * v₂

v₂ = 16.8/1.8

v₂ = 9.33 m/s

v₂/v₁ = 9.33/12.0

v₂/v₁ = 0.777

The ratio of the speed should be 0.777.

Since

Velocity, v₁ (of mass m₁) = 12.0 m/s

The velocity of the two masses after inelastic collision = v₂

So,

m₁u₁ + m₂u₂ = (m₁ + m₂)v₂

here

m₁ = mass of first block = 1.40 kg

u₁ = initial velocity of first block = 12.0 m/s

m₂ = mass of second block = 0.40 kg

u₂ = initial velocity of second block = 0 m/s

v₂ = final velocity of the two-block system = ?

Now

1.4 * 12 + 0.4 * 0 = (1.4 + 0.4) * v₂

16.8 + 0 = 1.8 * v₂

v₂ = 16.8/1.8

v₂ = 9.33 m/s

So,

v₂/v₁ = 9.33/12.0

v₂/v₁ = 0.777

hence, The ratio of the speed should be 0.777.

Learn more about speed here: https://brainly.com/question/18212021

Answer:

Merritt Island i think

Answer: periodic wave

Explanation:

i just took a test and got it right

Answer:

The energy of the motion of the chemistry book was transformed into thermal energy.

Explanation:

Answer:

The person above me has the exact answer!

Explanation:

Have a nice day

Answer:

68 N

Explanation:

We have a force of 80 N going to one direction and 12 N to the other direction. we subtract 12 from 80 and get 68 N which is the total net force

The net force acting on the wagon is equal to 68 N.

The net force acting on an object can be defined as the vector sum of all forces acting. The net force is a single force that can give same the effect as the original forces on the object's motion.

The net force will be the resultant force with a similar effect on the rotational motion as all actual forces taken together by the object.

In the question, the applied force will act in the opposite direction of the frictional force so we need to subtract these two forces to find the net force.

Given, the applied force to push the wagon = 80 N

The frictional force between wagon and ground = 12 N

The net force on the wagon = 80N + (-12N) = 68 N

Therefore, the net force equal to 68 N will act in the direction of the applied force.

Learn more about the net force, here:

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Answer:

hello your question is incomplete attached below is the missing figure of the question

Answer: The field is due to the charges outside the slab

Explanation:

The Electric field produced is due to the charges outside of the slab and this is due to the fact that the Electric field inside the slab will always be zero

as seen in the fig attached ; given  x = 0 , Ex = 125 N/C

Answer:

The height of the building is 705.6 m

Explanation:

Given that,

When an object is dropped from the roof of a building, it takes 12 seconds to hits the ground.

We need to find the height of the building. Let it is h. Initially, the object was at rest. Using second equation of motion to find it as follows :

[tex]h=ut+\dfrac{1}{2}at^2[/tex]

Here, a = g and u = 0

[tex]h=\dfrac{1}{2}gt^2\\\\h=\dfrac{1}{2}\times 9.8\times (12)^2\\\\h=705.6\ m[/tex]

So, the building is 705.6 m tall.

Answer:

The total force on the charge placed in the middle will be zero (0).

Explanation:

The force on the charge in the middle of a square due to one of the charges placed at the square corner is given by:

[tex] F = \frac{KQq_{1}}{d^{2}} [/tex]

Where:

Q: is the charge in the middle = 1 nC

[tex]q_{1} = q_{2} = q_{3} = q_{4}[/tex] are the charge placed at the 4 square corners = -2 nC

The distance between the charge Q and q₁, q₂, q₃, and q₄ is:

[tex] d = \frac{\sqrt{2a^{2}}}{2} = \frac{\sqrt{2(1 cm)^{2}}}{2} = 0.707 cm = 7.07 \cdot 10^{-3} m [/tex]

Now, the magnitude of the force is:

[tex] |F_{Qq_{1}}| = \frac{KQq_{1}}{d^{2}} = \frac{9\cdot 10^{9}*1 \cdot 10^{-9} C*2 \cdot 10^{-9} C}{(7.07 \cdot 10^{-3} m)^{2}} = 3.60 \cdot 10^{-4} N = |F_{Qq_{2}}| = |F_{Qq_{3}}| = |F_{Qq_{4}}| [/tex]  

Since the magnitude of the force on the charge placed in the middle of the square is the same due to the 4 charges placed in the square corners (because the charge of q₁, q₂, q₃, and q₄ charges is the same) and due to the geometry, the vectorial sum of the total force on the charge placed in the middle will be zero (0).  

Therefore, the total force on the charge placed in the middle will be zero (0).          

I hope it helps you!                                                        

Answer:

volume is the amount of space occupied by matter

mass is the quantity of matter present in an object while weight is a measure of the pull of gravity on the object

Density is mass per unit volume

Explanation:

I hope I get brainliest

Answer:

i will help what do you need help with

Answer:Current across 10ohm, I =0.59 A

Explanation:

Total Resistance n parallel s given as

 1/Rt = 1/R1 + 1/R2 + 1/R3

1/Rt = 1/4 + 1/6 + 1/10

1/Rt = 0.51666

Rt = 1/0.51666

Rt = 1.935 ohms

 which is now connected In series with a ohm resstor

Rnet  in series = R1+ R2

Rnet = 1.935 + 2.0 = 3.935 ohms

Since a voltage of 12 V s connected with the resistors in series, we have that the net current flowing across the 2ohm and 1.935ohm will be

Current, I = Voltage, V/ Resistance, R net

I=  I2 / 3.935= 3.049 A

the Voltage across the 1.935 ohm resistance  

V= 1R

3.049  X  1.935  = 5.899 Volts

 remember that  1.935 ohm s the resultant resistance connected in parallel, therefore The voltage across the 1.935 ohm is same for the 10 ohm, 4ohm and 6ohm resistances

Therefore, the current passing through the 10ohm resistance will be

Current across 10ohm, I   = V/R = 5.899/10 = 0.5899 Ampere  ≈0.59 A

Answer:

6.32m/s

Explanation:

Given parameters:

Initial velocity  = 4m/s

Acceleration  = 2m/s²

Distance covered  = 6m

Unknown:

Final velocity  = ?

Solution:

To solve this problem, we have to apply the appropriate motion equation;

         V²  = U² + 2aS

where V is final speed

          U is the initial speed

         a is the acceleration

          S is the distance

Insert the given parameters and solve;

      V² = 4² + 2 x 2 x 6

      V² = 16 + 24

      V² = 40

       V = √40 = 6.32m/s

Answer:

Fnet = 2782.6 N

Explanation:

        [tex]a = \frac{\Delta v}{\Delta t}[/tex]

        where Δv = vf - v₀ and Δt = tfi - t₀, replacing by the givens:

       [tex]\Delta v = v_{f} - v_{o} = 20 m/s - 29.8 m/s = -9.8 m/s[/tex]

       Δt = 4.9 s

       ⇒[tex]a = \frac{-9.8m/s}{4.9s} = -2 m/s2[/tex]

        [tex]F_{net} = m* a = 1391.1 kg * (-2 m/s2) = -2782.6 N[/tex]

Answer:

FALSE

Explanation:

Answer:

Car A was going at 80 m/s

Explanation:

Let's call "x" the unknown speed of car A. In such case, the speed of car B would be x/2.

We proceed to describe the distance covered by car A (dA) in the 5 seconds it took to collide:  dA = speed * time = x * 5 = 5 x

Now the distance covered by car B (dB) in the same time would be:

dB = speed * time = (x/2) * 5 = 5 x / 2

Now, we know that the distance that separated both cars was 600 meters, so the addition of what car A covered plus what car B covered must equal 600 m, and in equation form:

dA + dB = 600

5 x + 5 x / 2 = 600

combining like terms:

15 x / 2 = 600

multiplying both sides by 2:

15 x = 1200

divide both sides by 15:

x = 80 m/s

This is the speed of car A.

Answer:

Explanation:

Magnetic field intensity = Current (A)/length of wire (m)

Given

Current = 10A

Length of wire = 2cm = 0.02m

Required

Intensity I

Substitute into formula

Intensity = 10/0.02

Intensity = 10 × 100/2

Intensity = 1000/2

Intensity = 500A/m

Answer:

Explanation:The alkali metals are more similar to each other than the elements in any other group are to each other. Indeed, the similarity is so great that it is quite difficult to separate potassium, rubidium, and caesium, due to their similar ionic radii; lithium and sodium are more distinct.

Answer:

its B. which chemical properties they have

Explanation:

Just trust me

Answer:

A. their masses

D. the distance between them

Explanation:

100% correct

Two factors have an effect on the gravitational force between two

objects are their masses and the distance between them.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The gravitational constant, denoted by the capital letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

f = Gmm/r²

Two factors have an effect on the gravitational force between two

objects are their masses and the distance between them.

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