A boat sailed 560 km in 8 hrs. It took three hours to travel the first 150 km. What was it’s average speed for the remaining journey?

Answers

Answer 1

Answer:

82 km/h

Explanation:

Given that A boat sailed 560 km in 8 hrs. It took three hours to travel the first 150 km. That is,

The remaining distance will be:

560 - 150 = 410 km

the remaining time will be:

8 - 3 = 5 hours

For the remaining Journey, average speed will be:

Speed = distance/time

Speed = 410/5

Speed = 82 km/h

Therefore, the average speed for the remaining journey will be 82 km/h


Related Questions

Which form of emission is commonly not written in nuclear equations because they do not affect charges, atomic numbers, or mass numbers?

Answers

Answer:

Gamma radiation .

Explanation:

Three types of emission result at the time of nuclear emission .

alpha emission

Beta emission

Gamma radiation emission

Gamma radiation results in the emission of gamma ray . This is a very high frequency radiation . It is not a particle having charge and mass like alpha and beta emission . So it has no effect on the mass and charge of the product that is formed after gamma radiation . The only effect it has on the product is that it reduces the kinetic energy of the emitting particles or it reduces the internal energy of the product . It causes negligible change in the mass of the product and no change in the charge of the product.

That is why , generally this product is not written in the nuclear reaction .

Answer:

The answer is Gamma ray

Explanation:

Because this is a very high frequency radiation, is not a particle having charge and mass like alpha and beta emission, so it has no effect on the mass and charge of the product that is formed after gamma radiation. The only effect it has on the product is that it reduces the kinetic energy of the emitting particles or it reduces the internal energy of the product, it causes negligible change in the mass of the product and no change in the charge of the product.

what are different type of plastids explain them?​

Answers

Answer:

types of plastids

chloroplasts

chromoplasts

gerontoplasts

leucoplasts

Explanation:

ans

A motorcycle travels at 6.0 m/s. After 3.0 seconds, the motorcycle travels at 15.0 m/s.
Which of the following was the average acceleration of the motorcycle?

Answers

The average acceleration of the motorcycle is determined as 3 m/s².

Acceleration of the motorcycle

The acceleration of the motorcycle is calculated as follows;

a = (v - u)/t

where;

v is the final velocityu is the initial velocityt is time of motion

a = (15 - 6)/3

a = 3 m/s²

Thus, the average acceleration of the motorcycle is determined as 3 m/s².

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What is the closed physical system?

A. Non of the answers are true

B. A system where matter and energy can leave but not enter the system

C.a system where matter and energy can leave but not enter the system


D. A system where matter and energy can not enter or leave the system

Answers

Answer:D
A system where matter and energy can not enter or leave the system

I will give brainliest if right

Which cell structure is thought to have arisen through an endosymbiosis in plant but not animal cells?

Choose 1 answer:

(Choice A) A Cell wall

(Choice B) B Mitochondria

(Choice C) C Chloroplast

(Choice D) D Ribosome

Answers

Answer:

chloroplast

Explanation:

Endosymbiosis theory explains the origin of chloroplast and mitochondria in the eukaryotic organisms.

When the pro-eukaryotes engulfed the blue-green algae or photosynthetic bacteria, these bacteria formed the symbiotic relationship with the pro-eukaryotes. These photosynthetic bacteria transformed into the chloroplast organelles of the eukaryotes which can capture the sunlight and use it in the synthesis of glucose molecules. These eukaryotic cells later formed the plant kingdom.

Same amount of force is acting on car and bus.If the ratio of the bus and car 25:1 calculate the ratio of the acceleration produced in the car to the acceleration produced in the bus

Answers

Answer:

1:25

Explanation:

The force acting on an object is given by :

F = ma ...(1)

m is mass and a is acceleration

It is given that the ratio of force acting on the bus and car 25:1 i.e. [tex]\dfrac{F_1}{F_2}=\dfrac{25}{1}[/tex], 1 is for bus and 2 is for car.

We need to find the ratio of the acceleration produced in the car to the acceleration produced in the bus. From equation (1),

[tex]\dfrac{F_1}{F_2}=\dfrac{a_1}{a_2}[/tex]

[tex]\dfrac{a_2}{a_1}=?[/tex]

[tex]\dfrac{F_1}{F_2}=\dfrac{1}{25}[/tex]

So, the ratio is 1:25.

The net external force on the propeller of a 3.32 kg model airplane is 23 N forward. What is the acceleration of the airplane?

Answers

Answer:

6.93 m/s^2

Explanation:

Given that the The net external force on the propeller of a 3.32 kg model airplane is 23 N forward

Where

Mass M = 3.32kg

Force F = 23 N

Force = mass × acceleration

Substitute all the parameters into the formula

23 = 3.32 × a

a = 23/3.32

a = 6.93 m/s^2

Therefore, the acceleration of the airplane is 6.93 m/s^2

how many grams is 1dg?​

Answers

Answer:

Oh, I didn't know if u meant decigram or decagram! So for decagram there would be 10 grams and deci gram is 0.1 grams.  Hope this helps!!

Explanation:

Answer:

Hey there!

There are 10 grams in one decagram.

Let me know if this helps :)

How do you think the mass of an object affects how much friction get exerted on the object by a rough surface?

Answers

Explanation:

Friction can't affect mass of a substance(considering for a substance whose mass doesn't change with time),rather it is the mass of an object which can affect friction variously. Let's take some example to understand the situation. So,higher the mass of the object,higher will be the frictional force.

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Name three common areas where unethical situations can occur in research.​

Answers

Answer:

Unethical behavior or ethical code are very important ion research or different areas. Ethical code protects people from misbehavior, disclose their privacy etc.

Explanation:

Many of people walk to the working place where most of people witnessed the unethical behavior with them. There are many area that are responsible for misconduct such as :

Misusing company timeAbusive behavior by researcher in field work.Leak privacy by a doctor of patient. In organization lying to the employee related to contract.To violet the company policies. In clinical setting misbehave with patient that unethical Unethical behavior could occur in business, among individual, by professional and among the political parties and social workers.

What’s the difference between atoms and molecules in a substance?

Answers

Answer:

Atoms are single neutral particles.

example: Ne, O

Molecules are neutral particles made of two or more atoms bonded together.

example:O2,HCl

Answer:

Atoms are single particles while molecules are particles made of two or more atoms bonded together.

Explanation:

Driving at 75 m/s, you hit the brakes on your new car, accelerating at
a rate of -20 m/s2. How much time will it take the car to come to
rest?

Answers

Explanation:

initial velocity, u = 75m/s

acceleration, a = -20m/s2

final velocity, v = 0m/s (rest)

Using the formula,

v = u + at

0 = 75 + (-20)t

t = 3.75 seconds

A car accelerates from a rest at -3 m/s2. What is the displacement after 4.7 sec?

Answers

The answer is 21/ms I bel

Which structure is represented by letter B?

Choose 1 answer:

(Choice A) A Cytosol

(Choice B) B Cell membrane

(Choice C) C Ribosome

(Choice D) D Cell wall

Answers

Answer: A Cytosol

Explanation: Jelly - like fluid that fills the space between cell organelles. Hoped This Helped :) Have a blessed day.

The cytoskeleton, which gives a cell its structure, allows organelles to move inside the cell, and provides a method by which the cell itself can move, is an ordered framework of fibrous molecules found in the cytoplasm. Thus, option A is correct.

What is the main function of cytosol in the cell?

The fluid that fills cells is called cytosol. In this water-based solution, organelles, proteins, and other cell components float. Any cell's cytosol is a sophisticated solution whose characteristics allow for the performance of life's essential processes.

The cytoplasm houses all the organelles found in eukaryotic cells, including the nucleus, endoplasmic reticulum, and mitochondria.The portion of the cytoplasm that is not contained in an organelle is known as the cytosol.

Therefore, Although the cytoplasm may not seem to have any shape or organization, it is actually quite well-organized.

Learn more about cytosol here:

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Which of the following is NOT a piece of evidence for the Big Bang Theory?
Ratio of Hydrogen and Helium to other elements
Expanding Universe
Black Holes
Cosmic Microwave Background Radiation

Answers

um the answer is A

np :3 i hope this is right

Fish oil in your diet will improve your memory. Independent variable? Dependent variable​

Answers

Fish oil independent, memory is dependent

If Johnny won a 300 meter race in 40 seconds, his speed would be ?

Answers

Formula: s = d/t

s = speed

d = distance

t = time

Solve using the values we are given.

s = 300/40

s = 7.5m/s

Best of Luck!

Answer:

7.5 m/s

Explanation:

10.What is the Kinetic Energy of a 150 kg object that is moving with a speed
of 15 m/s? (7b)

Answers

KE=1/2 mv^2
=1/2(150kg)(15m/s)^2
=16875 kgms^-2

2. Find the velocity when the displacement is 40 m and the time is 5 s.

Answers

Answer:

V=?

S= 40m

t=5s

V=S/t

V=40/5

V=8m/s

what is the difference between an ideal machine and a practical machine​

Answers

Answer:

Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done.

Explanation:

Answer: Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done.



Explanation:

What is the average speed of a car that traveled 222.0 miles in 4.596 hours?

Answers

Answer:

48.3mph

Explanation:

Given that

Distance = 222.0miles

Time = 4.596hours

Average speed = total distance/total time

= 222.0miles/4.596

= 48.3mph

Hence the average speed is 48.3mph

An ant crawled from a hole to the food. For the first 6
minutes, it travelled at an average speed of 15 m/min. For
the next 9 minutes, it travelled at an average speed of 10
m/min. What was the average speed of the whole journey?
m/min

Answers

Answer:12

Explanation:Average speed=Total Distance divided by Total Time.

The Flash can travel 400 m in just 5.2 minutes. What is his average velocity in m/s?

Answers

Answer:

76.9231

Explanation:

Divide 400m by 5.2 to get the answer.

Speed = (distance) / (time to cover the distance)

Speed = (400 m) / (5.2 minutes)

Speed = (400 m) / (312 seconds)

Speed = 1.28 m/s

There's not enough given information to find his velocity.

(I'll be honest with ya, Flash: 1.28 m/s is no big deal. It's only about 2.87 miles per hour. My dog can walk faster than that, and so can most healthy people. If that's the best you can do, then you probably shouldn't be running around chasing bad guys.)

Raymond and Julie ar driving to Santa Barbara.
They drive at an average speed of Bomon for
2.5 hours before he stopping for lunch. H
takes them 30 minutes to eat. After lunch
they continue driving or an average speed
of so mon for 3.0 nono . What is their
average speed, in miles
for the
3.5
entive
HID
per hour

Answers

This is not worded correctly. Soooo idk sorry:/

Tell me about your experiences with science​

Answers

Answer:

Well i once did an expiremnet and it exploaded in my face lol

Explanation:

Answer:

so good

Explanation:

perfect nice and explody too much

A mass is measured as 6.2 kg in one experiment and as 6.20 kg in another. in what way do these measurements differ​

Answers

Answer:

They are both same

Explanation:

6.20=6.2kg

Choose the nonmetallic elements from the list. Check all that apply. yttrium oxygen boron polonium argon gallium carbon

Answers

Answer:

oxygen

argon

carbon

Explanation:

Answer:

B E G Oxygen Argon Carbon

Explanation:

When exercising, which hormone level decreases in females often causing a better mood?
Estrogen
Adrenaline
Blood Sugar
Cortisol

Answers

Answer:

The correct option is;

Adrenalin

Explanation:

The presence of Adrenalin can cause headaches, memory loss, confusion, make a person unable to concentrate, and therefore, generally affects the mode in female, as such it is important for a decrease the level of Adrenalin by exercising, which causes the Adrenalin and cortisol to reduce in a similar  way to consuming gasoline by burning gasoline, cardiovascular exercises burns Adrenaline.

Doing exercises causes adrenaline and cortisol, which are the body's stress hormones to be reduced.

Answer:

It's adrenaline

Explanation:

I just took a quiz and got it right

What do all electromagnetic waves have in common?
They can travel at the speed of light.
O They have the same wavelengths.
O They travel only through matter.
O They have nonmoving magnetic fields.

Answers

Answer: A they can travel at the speed of light

Explanation: A on EDGE

Answer:

a

Explanation:

got 100

A long, nonconducting, solid cylinder of radius 4.0 cm has a nonuniform volume charge density r that is a function of radial distance r from the cylinder axis: r ! Ar2 . For A ! 2.5 mC/m5 , what is the magnitude of the electric field at (a) r ! 3.0 cm and (b) r ! 5.0 cm?

Answers

Answer:

a) 1.91 c/m

b) 3.62 c/m

Explanation:

See attached image

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