Calculate the total Av required to transfer between two coplanar circular Earth orbits of radii r 1 parameters p = 13,457 km and e = 0.76. Ans.: 7.086 km/s 12,750 km and r2 = 31,890 km, respectively, using a transfer ellipse having parameters p=13.475 km and e=0.76

If the engine of a boat on a river is turned off while the boat is moving with a steady speed, several things would happen Loss of propulsion,Drifting,Loss of steering control and Potential hazards.

Loss of propulsion: Without the engine running, the boat would lose its power source for propulsion. The boat would gradually slow down and eventually come to a stop unless other external forces, such as currents or wind, continue to move it.

Drifting: Once the boat comes to a stop, it would start to drift with the current of the river or be affected by wind forces. The direction and speed of the drift would depend on the strength and direction of the current or wind.

Loss of steering control: When the engine is turned off, the boat's steering mechanism, such as a rudder, would also lose power. Without the ability to steer, the boat would follow the course determined by the river's current or the wind direction.

Potential hazards: Depending on the surroundings and the current conditions, there could be potential hazards for a boat that is no longer under power. These hazards might include other vessels, obstacles, shallow areas, or strong currents. The boat's crew would need to take appropriate actions to ensure the safety of the boat and its occupants.

It's important to note that the specific behavior of the boat after the engine is turned off can vary depending on factors such as the size and design of the boat, the strength and direction of the current, and the presence of wind or other external forces.
For more such questions on Loss of propulsion,click on:

https://brainly.com/question/17083942

#SPJ11

Answer:

The work done in bringing the plates together is 5.9 x 10⁻¹⁰ J.

Explanation:

Given;

potential difference between the plates, V = 10 V

length of each square side of the plates, L = 20 cm = 0.2 m

area of the plates, A = 0.2 x 0.2 = 0.04 m²

separation of the plates, d = 3 cm = 0.03 m

The work done in bringing the plates together is calculated as;

W = ¹/₂qV

\(W = \frac{1}{2} (\frac{\epsilon_0 A }{d}V) \times V\\\\W = \frac{\epsilon_0 A V^2}{2d}\\\\W = \frac{8.85 \times 10^{-12} \ \times \ 0.04\ \times \ 10^2}{2(0.03)} \\\\W = 5.9 \times 10^{-10} \ J\)

Therefore, the work done in bringing the plates together is 5.9 x 10⁻¹⁰ J.

Answer:

11.76s

Explanation:

Answer:komedvkfo

ftkgkrfepdlw

Explanation:jikmo

komkji

Answer:

wait

Explanation:

If the car starts from rest, moves in a straight line, and has a speed of 19.0 m/s then it would reach the ramp in 12.32 seconds.

There are three equations of motion given by  Newton,

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

Note that these equations are only valid for a uniform acceleration.

By using the third equation of motion,

v² - u² = 2×a×s

19² - 0² = 2×a×117

a = 1.54 meters / second²

By using the second equation of the motion,

S = ut + 1/2*a*t²

117 = 0 + 0.5*1.54*t²

117 = 0.77t²

t² = 152

t = 12.32 seconds

Thus, the car would reach the end of the ramp in 12.32 seconds.

To learn more about equations of motion from here, refer to the link;

brainly.com/question/5955789

#SPJ1

This question is incomplete, the complete question is;

Flag

A constant force F = 6i+8j-6k moves an object along a straight line from point (6, 0, -10) to point (-6, 7, 2).

Find the work done if the distance is measured in meters and the magnitude of the force is measured in newtons.

Answer:

the work done is -88 J

Explanation:

Given the data in the question;

we know that;

Work done = F × S

where constant force F = ( 6i + 8j - 6k )

S = ( -6i + 7j + 2k ) - ( 6i + 0j - 10k )

S = ( (-6i - 6i) + (7j - 0j) + ( 2k - ( -10k) ) )

S = ( -12I + 7j + 12k )

so

Work force = ( 6i + 8j - 6k ) × ( -12I + 7j + 12k )

Work force = ( 6 × -12 ) + ( 8 × 7 ) + ( -6 × 12 )

Work force = -72 + 56 - 72

Work force = -88 J

Therefore, the work done is -88 J

The molecules of O2 that are  present in 3.90 L flask at  a temperature of 273 K and a pressure of 1.00 atm is 1.047 x 10^23 molecules  of O2

Step  1:  used the ideal gas equation to calculate the moles of O2

that is Pv=n RT  where;

P(pressure)= 1.00 atm

V(volume) =3.90 L

n(number of moles)=?

R(gas constant) = 0.0821 L.atm/mol.K

T(temperature) = 273 k

by  making n the subject of the formula by  dividing  both side by RT

n= Pv/RT

n=[( 1.00 atm x 3.90 L)  /(0.0821 L.atm/mol.k  x273)]=0.174  moles

Step 2: use the Avogadro's  law constant  to calculate  the number of molecules

that  is  according to Avogadro's law

                          1  mole =  6.02 x10^23  molecules

                            0.174 moles=? molecules

by  cross  multiplication

the number of  molecules

= (0.174  moles x  6.02 x10^23  molecules)/ 1 mole  =1.047 x 10^23 molecules of O2

Learn more about molecules on:

https://brainly.com/question/32298217

#SPJ1

Answer:

b. False

Explanation:

The visible matter that belongs to the Milky way Galaxy are traced out to be about 50 kpc distance from the center.

Kpc stands for kiloparsec. It is the unit of measurement of distance.

A parsec is\($\text{ used to measure large distances}$\) of the astronomical objects that lies \($\text{outside the solar system}$\), mainly where galaxies are involved.

1 kiloparsec is 1000 parsec and is equal to 3260 light years.

So the visible matter is about 163,078 light years away.

Hence the answer is FALSE.

Answer:

The correct answer is - A matter that has an ordered arrangement of atoms, molecules, or ions.

Explanation:

In physics, a crystal is a type of solid matter in which a highly arranged molecule or atoms present to form a lattice that extended in all directions. It is a lightweight clear solid which is normally is colorless.

It can be cubic, hexagonal, triclinic, monoclinic, orthorhombic, tetragonal, and trigonal that are ordered arrangments. Its internal symmetry is visible to its surface.

25  m/s² is the object's acceleration

m1a1=m2a2

m1=5kg

m2=3 kg

a1= 15 m/s²

a2=?

m1a1=m2a2

a2=m1a1/m2

a2=5×15÷3

a2= 25  m/s²

Acceleration is a vector variable that describes the rate at which an object changes its velocity.

An object is said to be accelerating if its velocity is changing. Occasionally, a moving object can change its velocity by the same amount each second. a moving object whose speed fluctuates by 10 m/s every second. This is referred to as a constant acceleration since the velocity is changing by a fixed amount each second.

The difference between an object with a constant acceleration and one with a constant velocity must be understood. Do not be fooled! If an object's velocity changes, whether it does so by a constant amount or a variable amount, then it is accelerating. Furthermore, something that is travelling at a steady speed is not accelerating.

To know more about  acceleration visit : brainly.com/question/3046924

#SPJ9

Answer:

The speed of a wave is equal to the wavelength divided by the period. The wavelength is the distance between two consecutive nodes, and the period is the time it takes for one complete cycle of the wave.

In this case, the wavelength is 6 m and the period is 0.2 s. Therefore, the speed of the wave is 30 m/s.

The answer is 30 m/s.

Explanation:

The object's final velocity, given the data is 10.5 rad/s

This is defined as the rate of change of velocity which time. It is expressed as

a = (v – u) / t

Where

The following data were obtained from the question

The final velocity can be obtained as follow:

a = (v – u) / t

0.75 = (v – 1.5) / 12

Cross multiply

v – 1.5 = 0.75 × 12

v – 1.5 = 9

Collect like terms

v = 9 + 1.5

v = 10.5 rad/s

Thus, the final velocity of the object is 10.5 rad/s

Learn more about acceleration:

https://brainly.com/question/491732

#SPJ1

Answer:

37.5 J

Explanation:

With work done equation: W=Fs

W=75*0.50=37.5 J

or use mgh=(75)(0.5) which is the same

Answer:

12

Explanation:

I'm a beginner so am not sureeeeee

Three different types of energy can enter or leave a system: heat, work, and mass flow.Heat and work are the only 2 types that can exist in a closed system because no mass can cross its borders.

There are three methods that thermal energy can be transferred: conduction, convection, & radiation.Conduction is the transfer of heat energy between adjacent molecules which are in touch with one another.

We must become familiar with the three different ways that energy is transferred: conduction, convection, & radiation.

To know more about energy visit:

https://brainly.com/question/1932868

#SPJ1

The  statement that explains how energy is conserved during this chemical reaction is option D

Chemical reactions that release energy in the form of heat into their environment are called exothermic reactions. The total energy of the reactants is greater than the total energy of the products in an exothermic process. The temperature of the surroundings rises as a result of this energy differential being released as heat.

We can see that the reaction is exothermic as such the energy that is lost by the system is gained by the surroundings.

Learn more about potential energy:https://brainly.com/question/7069659

#SPJ1

Answer:

C. 22 m/s

Explanation:

Ignoring air friction....all of the Potential energy will be converted to Kinetic Energy

mgh = 1/2 m ^v^2

gh = 1/2 v^2

sqrt (2 gh) = v   =   ~ 22.1 m/s

(a) Velocity with which the mug leaves the counter is approximately 5.02 m/s.

(b) The direction of velocity of mug just before it hits the floor is downwards, since mug is falling under influence of gravity.

Velocity is a quantity that designates how fast and also in what direction a certain point is moving.

(a) As we know, PE = m g h

\(\mathrm{PE = mgh }\)

\(\mathrm{= (m)(9.81 m/s^2)(1.36 m) }\)

= 13.4mJ

\(\mathrm{KE =\frac{1}{2} mv^2}\)

PE = KE

\(\mathrm{mgh = \frac{1}{2}mv^2}\)

\(\mathrm{v = \sqrt{2gh}}\)

\(\mathrm{v = \sqrt{2 \times 9.81 \times 1.36 m}}\)

v = 5.02 m/s

Therefore, the velocity with which the mug leaves the counter is approximately 5.02 m/s.

(b) The direction of the velocity of mug just before it hits the floor is downwards, since mug is falling under the influence of gravity. Velocity vector has a vertical component that points downwards and horizontal component that is parallel to counter.

To know more about velocity, refer

brainly.com/question/25749514

#SPJ4

The water balloon that is dropped by the student 10 meters above the ground, will hit the ground after 1.0s of falling (in 1.4 s).

To find the time we need to use the equation that related the time with the height and the acceleration due to gravity, that is to say, the first equation from the two given, but in the vertical direction:

\( y_{f} = y_{0} + v_{0}t + \frac{1}{2}at^{2} \)   (1)

Where:

\( y_{f}\): is the final height = 0

\( y_{0}\): is the initial height = 10 m

\( v_{0}\): is the initial velociy = 0 (it is dropped)          

a: is the acceleration due to gravity = -9.8 m/s² (it is negative because its direction of motion is downward)

t: is the time =?  

Solving equation (1) for t, we have:

\( 0 = 10 m - \frac{1}{2}gt^{2} \)

\( t = \sqrt{\frac{2*10 m}{9.8 m/s^{2}}} = 1.4 s \)

Therefore, the ballon will hit the ground after 1.0s of falling.

We used the first given equation but in the y-direction, because the equation x=x₀+v₀t+(1/2)at², considers a motion in the horizontal direction, and the ball is falling (y-direction). We did not use the other equation (v = v₀ + at) because we do not know the final velocity of the ball before it hits the ground (v).

You can see another example of free fall here: https://brainly.com/question/13344403?referrer=searchResults  

I hope it helps you!    

Answer:

The time it takes for the balloon to hit the ground is 1.4 seconds. So the answer is the balloon would hit the ground after 1.0 s of falling.

Explanation:

The answer can be found by using the equation  \(x=x_{0}+v_{0}t+\frac{1}{2}at^{2}\)

x is the position; the balloon falls to the ground, so \(x = 0\)

x0 is the initial position; the balloon is 10 meters high, so \(x_{0} = 10\)

t is the time; we are solving for time

a is the acceleration; in this case it is gravity (9.8 m/s^2), so  \(a = 9.8\)

*we do not need v0, or initial velocity, for this problem

the equation now looks like this  \(0=10-(\frac{1}{2}9.8)t^{2}\)

**because the acceleration is gravity and the balloon is falling downwards, the acceleration becomes negative (-9.8 m/s^2)

1) multiply 9.8 by 1/2 inside the parenthesis

\(0=10-(\frac{1}{2}9.8)t^{2}\)

\(0=10 -(4.9)t^{2}\)

\(0=-4.9t^{2} + 10\)

2) add 4.9t^2 to both sides of the equation

\(4.9t^{2} = 10\)

3) divide both sides by 4.9

\(\frac{4.9t^{2}}{4.9}= \frac{10}{4.9}\)

\(t^{2} = 2.040816\)

4) find the square root

\(\sqrt{t} = \sqrt{2.040816}\)

\(t=1.4\)

This is how we can use the equation  \(x=x_{0}+v_{0}t+\frac{1}{2}at^{2}\)  to find the answer 1.4 seconds.

the balloon hits the ground after falling for 1.4 seconds.

When scientists calculate the trajectory a satellite takes on its way to

study a planet, they use C. Speed, Velocity, and acceleration.

A trajectory, often known as a flight path, is the route taken by an object moving under the influence of gravity. Typically, the phrase is applied when referring to projectiles or satellites.  A parabola curve is usually a decent approximation of the trajectory form when an object is propelled for in a short distance.

When scientists calculate the trajectory a satellite takes on its way to

study a planet they take the speed, velocity, and acceleration into consideration.

The formula for calculating the trajectory can be expressed as:

\(\mathbf{y = h + xtan (\alpha) - \dfrac{gx^2 }{2V_o^2cos^2 (\alpha)}}\)

where;

Learn more about trajectory here:

https://brainly.com/question/88554?referrer=searchResults

The muzzle speed of the dart when the spring is released is 11.3 m/s

The given parameters are

k = spring  constant = 400 N/m

m = mass = 20 g = 0.02 kg

Compression = x = 8 cm = 0.08 m

According to the question,

When the dart is loaded, the potential energy is converted into kinetic energy.

Potential Energy (P.E.)

\(P.E. =\frac{1}{2} kx^{2}\)

Putting the values,

\(P.E. =\frac{1}{2} *400*(0.08)^{2} = 1.28\)

Now, Kinetic Energy (K.E.)

K. E. = \(\frac{1}{2} mv^{2}\) = \(\frac{1}{2} *0.02*v^{2}= 0.01 v^{2}\)

Now, P.E. = K.E.

\(0.01 v^{2} = 1.28 \\\\v^{2} =\frac{1.28}{0.01} \\\\v^{2} = 128\\ \\v = 11.3\)

Hence, the muzzle speed of the dart when the spring is released is 11.3 m/s

To read more about speed, visit https://brainly.com/question/28224010

#SPJ1

Answer:

A,C

Explanation:

The amount of time it takes for a wave to return can be used to create an image

High--frequency sound waves are reflected by tissues in the body

Ultrasound technology produces an image of part of the body on: The amount of time it takes for a wave to return can be used to create an image and high-frequency sound waves are reflected by tissues in the body. So, option (A) and (C) is correct.

Sound waves are used in ultrasound imaging to create images of the inside of the body. It aids in determining the origins of discomfort, edema, and infection in the body's internal organs as well as the examination of a developing fetus in pregnant women.

The same concepts underlie sonar used by ships, bats, and fisherman as well as those used by ultrasound imaging. A sound wave echoes or bounces back when it encounters an object. These echo waves can be measured to obtain information on the object's size, shape, and consistency as well as its distance from the source. Whether the thing is solid or liquid is included in this.

The amount of time it takes for a wave to return helps to create an image and high-frequency sound waves are reflected by tissues in the body. So, option (A) and (C) is correct.

To find more about ultrasonic, refer the link:

https://brainly.com/question/21336084

#SPJ5

The correct answer is 54.6 min.

Running speed of Ilya and Anya is v_r=7.50 mi/hr

Walking speed of Ilya and Anya is v_w=3.50 mi/hr

Total length of the route is d=5.00 miles.

Total time taken by Anya to cover the distance is

\(t_A= d/2/v_r+ d/2/v_w\)

\(t_A= d/2v_r + d/2v_w\)

\(t_A=d/2 \times1/v_r +1/v_w\)

\(t_A= d/2 \times v_r+v_w / v_rv_w\)

\(t_A\)= 5.00/2 × 7.50+3.50/7.50 × 3.50 hr

\(t_A\)= 5.00/2 × 11/26.25 hr

\(t_A\)= 55/52.5 hr

\(t_A\)=1.05 hr

Therefore Anya will take 1.05 hr to cover the distance.

Average speed of Anya is

\(v_{avg} = d/t_A\)

\(v_{avg}\)= 5.00/1.05 mi/hr

\(v_{avg}\) = 4.76 mi/hr

Therefore Anya's average speed is 4.76 mi/hr.

If total time taken by Ilya to cover the distance is t , then

(\(v_r\) × t/2+(v_w × t/2=d))

t/2 × (\(v_r+v_w\))=d

t × (\(v_r+v_w\))=2d

t = 2d/(\(v_r+v_w\))

t = 2 × 5.00/7.50+3.50

t = 10/11 hr

t = 0.91 × 60 min

t = 54.6 min

Therefore total time taken by Ilya to cover the distance is 54.6 min.

To learn more about average speed refer the link:

https://brainly.com/question/14782441

#SPJ9

Answer:

sciencephysicsphysics questions and answersA 12-kg Block Is Pressed Against A Spring (spring Constant 870 N/m ), Compressing It Some Distance. ...

Question: A 12-kg Block Is Pressed Against A Spring (spring Constant 870 N/m ), Compressing It Some Distance. The Block Is Released From Rest And Slides Across A Track As Shown In (Figure 1). While Most Of The Track Is Frictionless, There Is A 55-cm Section Of Track That Has A Coefficient Of Friction With The Block Of 0.4. A Bit Further On, The Track Ascends ...

A 12-kg block is pressed against a spring (spring constant 870 N/m ), compressing it some distance. The block is released from rest and slides across a track as shown in (Figure 1). While most of the track is frictionless, there is a 55-cm section of track that has a coefficient of friction with the block of 0.4. A bit further on, the track ascends into a hill that is 40-cm tall.

What is the minimum compression of the spring necessary for the block to slide past the section with friction?

What is the minimum compression of the spring necessary for the block to make it to the top of the hill on the other side? 40cm 12kg Ww.w.wwwww 55cm

Explanation:

Answer:

It cannot be constant because if it does not change and each time it increases its strength and speed.

Explanation:

The distance through which the spring is compressed is equal to the kinetic energy of the steel ball divided by the spring constant, i.e. 0.1 kg x 4m/s2/10N/m = 0.04 m.

Let us begin by Calculating the kinetic energy of the steel ball:

Kinetic Energy = 0.5 x mass x velocity2

Kinetic Energy = 0.5 x 0.1 kg x (4 m/s)2

Kinetic Energy = 0.8 J

Calculate the distance through which the spring is compressed:

Distance = Kinetic Energy/Spring Constant

Distance = 0.8 J/10N/m

Distance = 0.04 m

Compression is the process of reducing the size of a file or data to save disk space and reduce transmission times. Compression is achieved by encoding data using fewer bits than the original representation.

This is done by removing unnecessary or redundant data, such as white space, or by using data compression algorithms. Compression helps make data storage and transmission more efficient.

Learn more about Compression here:

https://brainly.com/question/7602497

#SPJ1

Answer: Colonialism is a big topic, but it can only be understood by looking at human experiences. Formal colonialism first came to the region we today call Ghana in 1874, and British rule spread through the region into the early twentieth century. The British called the territory the “Gold Coast Colony”.

Explanation: hey, hope this hlps! oh, btw you picked the wrong subject for this question it should have been history insteat of phiscics!

The force that your textbook exerts on the Earth is immeasurably small, since the mass of the textbook is much, much smaller than the mass of the Earth.

Force is a push or pull on an object due to its interaction with another object. Force is a vector quantity that is described by its magnitude and direction. It is typically measured in Newtons and represented by the symbol F. Force can cause an object to accelerate, change its direction, or change its shape. Force is an integral part of physics and is governed by the laws of motion.

This force is equal to the downward pull on the textbook but in the opposite direction, meaning that it is trying to pull the Earth up, canceling out the downward force. However, since the force exerted by the textbook is so small, it is not enough to counteract the pull of gravity, and thus the textbook falls.

To learn more about force
https://brainly.com/question/12785175
#SPJ4

Answer:

one time i was one the flat ground at my aunts house then we went on a hike so i brought my bike it had just rained that day so it was kinda muddy so there was sticks everywhere.i was riding up hill and noticed that it was very hard,then i rode down hill and it was much better

Explanation: