Paula is sailing across a lake. As the boat accelerates, she thinks about how
the wind is pushing on the sail. Which statement below best represents
what is happening between the sail and the air?

A. The sail is pushing the wind back and slowing down the air.
B. The sail and air are not pushing each other, they are just moving together.
C. The air is pushing on the sail, but the sail is not pushing the air.
D. The sail is pushing the wind forward with the air.

Which statement do you most agree with? Explain you reasoning.

Paula Is Sailing Across A Lake. As The Boat Accelerates, She Thinks About Howthe Wind Is Pushing On The

Answers

Answer 1
A is the correct answer because the boat can’t sailor without a sailor that the boat
Answer 2

The answer is (A.) The sail is pushing the wind back and slowing down the air. The wind is pushing the sail and the sail pushes the wind back and slows the air down.

As the boat is sailing, the wind will be faster than the boat. This fast wind is obstructed by the sail. That is, the fast wind gets slowed down by the sail because the sail pushes the wind backwards which slows down the wind. This will make the wind push the boat forward thereby accelerating the boat.

Learn more about the forces acting on a boat here:

https://brainly.com/question/21186114


Related Questions

Can someone please help me with science.

Answers

Answer:

The answers to your questions are given below

Explanation:

22. The energy of an electromagnetic wave and it's frequency are related by the following equation:

E = hf

Where:

E => is the energy

h => is the Planck's constant

f => is the frequency

From the equation i.e E = hf, we can conclude that the energy of a wave is directly proportional to it's frequency. This implies that an increase in the frequency of the wave will lead to an increase in the energy of the wave and also, a decrease in the frequency will lead to a decrease in the energy of the wave.

23. Gamma ray and radio wave are both electromagnetic waves. All electromagnetic waves has a constant speed of 3×10⁸ m/s in space.

Thus, gamma ray and radio wave have the same speed in space.

what are the uses of convex lens​

Answers

Answer:A convex lens is employed in microscopes and magnifying glasses to converge all incoming light rays to a particular point. ...

The convex lens is used in cameras. ...

A convex lens is used for the correction of hyperopia. ...

The converging lens is used in the projector as well.

When steam turns a turbine, what is the energy conversion? *
1. Thermal to mechanical
2. Electrical to mechanical
3. Mechanical to chemical
(pls help)

Answers

Electrical to mechanical

What is the color of lava at its hottest? Help asap

Answers

yellow !!!!!!!!!!!!!!!!

Las ondas tienen elementos de posición y temporales uno de ellos se define como, La distancia recorrida por una onda en un período se llama Opciones: Longitud de onda Frecuencia Período Velocidad

Answers

Answer:

Velocidad.

Explanation:

Físicamente hablando, la velocidad es la distancia recorrida por unidad de tiempo. En el caso de las ondas se trata de la distancia recorrida en un período de tiempo.

Por ende, la opción correcta es: Velocidad.

If the model spacecraft were made ONLY out of plastic (no other materials) would it be repelled by the magnet launcher?
yes or no?

Answers

Answer:

no it wont i think

Explanation:

An elevator is rising up a vertical shaft in a skyscraper. Between the 12th and 20th floors, it travels at a constant speed. During this time period:

1.) The only unbalanced force acting on it is air resistance.

2.) The forces acting on it are balanced so the net force is zero.

3.) The upward force is greater than the combined downward forces of gravity and air resistance, making it move upward.

4.) There are no forces acting on it so the net force is zero.

Answers

3. The upward force is greater
.................,

A sports car accelerates at 4.3 m/s2. If the car exerts a force of 4106 N, what is the mass of the sports car?

Answers

Answer:

954.88kg

Explanation:

F=ma

Given that,

F = 4106N

and a = 4.3m/s²

By rearranging the equation,

m = F÷a

m = 4106 ÷ 4.3

m = 954.88kg

598.47 kg beheld hope this helps

A car goes from 0 m/s to 13 m/s in 10 seconds. What is the
car's rate of acceleration?

Answers

V initial = 0 m/s
V final = 13 m/s
Time = 10 s
Vf - Vi / T =
13-0/10 =
1.3 m/s^2

Answer:

V initial = 0 m/s

V final = 13 m/s

Time = 10 s

Vf - Vi / T =

13-0/10 =

1.3 m/s^2

Explanation:

Hey<3

Bob and Sarah build an electromagnet by wrapping a wire around a nail and connecting the wire to both terminals of a battery. When they test the electromagnet, it can pick up six paper clips. Their teacher wants all groups to pick up at least 10 paper clips. What revisions could Bob and Sarah make to increase the number of paper clips their electromagnet picks up

Answers

1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

When acceleration and velocity are in opposing directions, the speed will​

Answers

Answer:

If the velocity and acceleration are in the same direction (both have the same sign - both positive or both negative) the object is speeding up. If the velocity and acceleration are in opposite directions (they have opposite signs), the object is slowing down.

Please mark my answer brainliest for further answers :)

The Speed will reduce

ol
ir Q.No.la ताल भनका क
The unit of density is called derived unit, why?​

Answers

Answer:  Density is measured in kg⋅m−2 . This means that it is derived from fundamental units which are the kilogram and metre. ... hence the kilogram and the metre are SI units and density is a derived unit from these units

Explanation:

they are calculated from the base units mass and length. Density is one derived unit; force, area, volume, specific volume and mass fraction are also derived units. Each derived unit is defined by a quantity equation.

Answer:

Density is obtained through mathematical manipulation.

Explanation:

A derived unit is obtained through mathematical calculation and the result is written with the S.I unit kg/m³

Energy can come from electricity, but it
can also come from water
false
true

Answers

Answer:

the answer is truth

Explanation:

Answer:

I think it might be true...

How is our magnetic field made?

Answers

Answer:

REVENGE

Explanation:

HAHAAHAHAAHAHAHA

A tuba creates a 4th harmonic of frequency 116.5 Hz. What is the frequency of the third harmonic? (Speed of sound = 343 m/s) (Unit = Hz )​

Answers

Answer:

3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz

Explanation:

Given -

4th Harmonic frequency created by tuba is equal to [tex]116.5[/tex] hertz

1st Harmonic Frequency created by tuba is equal to [tex]\frac{116.5}{4}[/tex] hertz

3rd Harmonic Frequency created by tuba is equal to [tex]3* \frac{116.5}{4}[/tex] hertz

3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz

Answer:

87.375 Acellus

Explanation:

A 35 g block of ice is cooled to −83 ◦C. It is added to 565 g of water in an 87 g copper calorimeter at a temperature of 22◦C. Find the final temperature. The specific heat of copper is 387 J/kg · ◦C and of ice is 2090 J/kg · ◦C . The latent heat of fusion of water is 3.33 × 105 J/kg and its specific heat is 4186 J/kg · ◦C . Answer in units of ◦C.

Answers

Answer:

Explanation:

Heat gained by ice in warming up to 0⁰C = .035 x 2090 x (83-0)= 6071.45 J

heat used up by ice to melt at 0⁰C = .035 x 3.33 x 10⁵ J = 11655 J

Heat used up in warming up water to t⁰C = .035 x 4186 x t = 146.51 t

heat released by warm water to cool from 22⁰C to t = .565 x 4186 x ( 22 - t )

=52032 -2365.1 t

heat released by copper calorimeter  to cool from 22⁰C to t =  .087 x 387 x ( 22 - t ) = 740.72 - 33.7 t

total heat released = 52032 -2365.1 t  + 740.72 - 33.7 t

= 52772.72 - 2398.8 t

Heat lost = heat gained

52772.72 J- 2398.8 t  = 6071.45 J + 11655 J + 146.51 t

2545.31 t = 35046.27

t = 13.8°C.

Can someone please help me with science.

Answers

On the dog's return trip (between t = 10 and t = 12.5 seconds), the slope of the position function is steeper than during the first 5 seconds, which means the dog ran home faster. The only option that captures this is D.

You can check to make sure that the dog indeed runs twice as fast on the return trip. The slope of the position function during the first 5 seconds is

(change in position) / (change in time) = (5 - 0) / (5 - 0) = 5/5 = 1

while during the return trip, it is

(0 - 5) / (12.5 - 10) = -5/2.5 = -2

Ignoring the sign (which only indicates the direction in which the dog was running), we see that the dog's speed on the return trip was indeed twice as high as during the first 5 s.

All waves change speed when they enter a new medium, but they don't always bend. When does bending occur?

Answers

Bending occurs when one side of the wave enters the new medium before the other side of the wave. ... The bending occurs because the two sides of the wave are traveling at different speeds.

Each gene controls the production of one or more specific ( Blank).

Answers

Answer:

Genes are located in the CHROMOSOME

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene.

Answer:

CHROMOSOME

Explanation:

GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 23pts-

Answers

Answer: wood

Explanation: pls help me https://brainly.com/question/22777864

A mass weighing pounds is attached to a spring whose constant is lb/ft. The medium offers a damping force that is numerically equal to the instantaneous velocity. The mass is initially released from a point foot above the equilibrium position with a downward velocity of ft/s. Determine the time at which the mass passes through the equilibrium position. Find the time at which the mass attains its extreme displacement from the equilibrium position. What is the position of the mass at this instant

Answers

Answer:

hello your question has some missing values attached below is the complete question with the missing values

answer :

a) 0.083 secs

b) 0.33 secs

c)  3e^-4/3

Explanation:

Given that

g = 32 ft/s^2 ,  spring constant ( k ) = 2 Ib/ft

initial displacement = 1 ft above equilibrium

mass = weight / g = 4/32 = 1/8

damping force = instanteous velocity  hence  β = 1

a)Calculate the time at which the mass passes through the equilibrium position.

time mass passes through equilibrium = 1/12 seconds = 0.083

b) Calculate the time at which the mass attains its extreme displacement

time when mass attains extreme displacement = 1/3 seconds = 0.33 secs

c) What is the position of the mass at this instant

position = 3e^-4/3

attached below is the detailed solution to the given problem

what is the amplitude and wavelength of the wave shown below?​

Answers

Amplitude: 30 cm; wavelength 110cm.

Why would you have trouble breathing at high altitudes?
A. it is colder at the top of a mountain
B. the oxygen molecules are spread farther apart
C. the oxygen molecules are closer together

Answers

Answer:

A. It is colder at the top of a mountain

Explanation:

Please help!!A camera lens 13.3 cm from a
flower makes an image at a
distance of 2.25 cm from the lens,
on the film. What is the focal
length of the lens?
(Unit = cm)

Answers

Answer:

f=1.92 cm

If ans is correct reply for explanation.

The typical focal length formula looks as follows: 1/Focal length = 1/Image distance + 1/Object distance , where: Image distance and Object distance are given in mm.

1/f = 1/u + 1/v

1/f = 1/133 + 1/22.5

    = 0.007 + 0.044

    = 0.0514 mm

What is focal length ?

"The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light."

Know more about focal length here

https://brainly.com/question/16188698

#SPJ2

explain why the rate of diffusion of a gas decreases with decrease in temperature​

Answers

Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion. Solvent density: As the density of a solvent increases, the rate of diffusion decreases.

Find the tension in the two groups that are holding the 2.9 kg object in Pl., One makes an angle of 35.6° with respect to the vertical group 2 is pulling horizontally

Answers

Answer:

≈ 20.35 N [newton's of tension]

Explanation:

( (2.9 × 9.8) ÷ cos(35.6°) ) × sin (35.6°) =

( (28.42) ÷ (≈0.813) ) × (≈0.582) =

(≈34.96) × (≈0.582) = 20.3449446.... ≈ 20.35

a. It shows the relative distance of each planet from the sun
b. It shows the relative amount of sunlight each planet receives
c. It shows the relative size of each planet tone another
d. It shows the relative period of rotation for each planet

Answers

Answer:

C. It shows the relative size of each planet tone another

Explanation:

I took this quiz earlier. Hope you have a great day! :)

EASY QUESTION IM GIVING BRAINLIEST!!
20 PTS

Answers

Maybe stainless steel :)

Why did the lemon battery work and how many volts does one produce?
O The juice of the lemon is an acid and the acid caused 2 volts.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 5 V.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 1.5 V.
O The juice of the lemon is an acid and the acid caused 1 volt.

Answers

Answer:

the third one

Explanation:

A 1.80-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 15.0 N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of the x axis). The object is now released from rest from this stretched position, and it subsequently undergoes simple harmonic oscillations.
(a) Find the force constant of the spring.
N/m

(b) Find the frequency of the oscillations.
Hz

(c) Find the maximum speed of the object.
m/s

(d) Where does this maximum speed occur?
x = ±
m

(e) Find the maximum acceleration of the object.
m/s2

(f) Where does the maximum acceleration occur?
x = ±
m

(g) Find the total energy of the oscillating system.
J

(h) Find the speed of the object when its position is equal to one-third of the maximum value.
m/s

(i) Find the magnitude of the acceleration of the object when its position is equal to one-third of the maximum value.
m/s2

Answers

Answer:

Explanation:

(a) Force constant = force/displacement = 15/0.2

=75 N/m

(b) For SHM with spring, the angular frequency = sqrt ( force constant / mass )

= sqrt ( 75 / 1.8 )

= 6.455

Frequency = Angular frequency / 2pi

= 1.03Hz

(c) Maximum speed is when object's potential energy is at minimum.

1/2*mass*speed^2 = 1/2*force constant*displacement^2

speed^2 = 75*0.2^2/1.8 = 1.67

speed = sqrt (1.67)

= 1.29 m/s

(d) It occurs at x=0

(e) Maximum acceleration = Force / m = 15/1.8

= 8.33 m/s^2

(f) It occurs at x=0.2m

Answer:

Explanation:

given:

The mass of the object attached to the spring: m = 1.80 kg

The magnitude of the maximum horizontal force exerted: F = 15.0 N

The amplitude of the spring-object oscillation: A = 0.200 m

a. k=15/.2=75N/m

b. (2pi*frequency)^2 = k/m = 75/1.8 = 41.67

frequency = 1.03Hz

c. max speed^2 = amplitude^2*k/m = 0.2^2 * 41.67

max speed = 1.29 m/s

d. x=0m

e. max accel = F/m = 15/1.8 = 8.33 m/s^2

f. x=0.2m

e. energy = 1/2*k*A^2

= 1/2*75*0.2^2

= 1.5J

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