Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. It takes Amy 40 minutes to arrive at school. Bill arrives 20 minutes after Amy. How much faster (in meters/second) is Amy’s average speed for the entire trip?

Answers

Answer 1

Answer:

Hey mate....

Explanation:

This is ur answer....

The image attached is the answer....

Hope it helps!

Brainliest pls!

Follow me! :)


Related Questions

34.9x46x809 Please helpp

Answers

34.9×46×809=1605.4×809 =1298768.6

please mark this answer as brainlist

Which is the cause of the suns magnetic properties ?
A) upward movement or super heated gases in the convection zone
B) uneven churning of plasma
C) rapid spinning of metals in the core
D) uniform clockwise rotation of charger particles

Answers

Answer:

Q:

What characteristic is shared by sunspots, solar flares, and coronal mass ejections? Select the two correct responses.

A:

They tend to occur during active periods of the solar cycle. & They are caused by outward fluctuations of the sun's magnetic field.

Q:Drag each item to the correct location.

A: sunspot: cooler area on suns surface where the magnettic field emerges

solar flare: intense burst of radiation coming from the rapid release of magnetic energy

coronal mass ejection: large bubble of plasma from the rapid release of magnetic energy

Q: Which is the cause of the sun's magnetic properties?

A: uneven churning of plasma

Explanation:

took quick check

good luck yall

The uneven churning of plasma is the cause of the sun's magnetic properties, therefore the correct answer is option B.

What is a magnetic field?

A magnetic field could be understood as an area around a magnet, magnetic material, or an electric charge in which magnetic force is exerted.

For a simple bar magnet, N-pole and S-pole are the points on a magnet that have the strongest magnetic field. The magnetic field originates from the north pole and terminates in the south pole of a magnet.

The positively charged ions and negatively charged electrons that make up the plasma of the Sun move around a lot due to its high temperatures. Multiple intricate magnetic fields that twist and turn are produced by the moving plasma. A magnetic field is produced by the extremely hot plasma that escapes from the Sun as the solar wind.

Thus, The sun's magnetic properties are caused by uneven plasma churning, so option B is the correct answer.

Learn more about the magnetic fields from here

brainly.com/question/23096032

#SPJ2

Which statement describes the motion of a ball as it drops onto a vertical spring?
a. The acceleration of the ball decreases as the spring shrinks.
b. The accIleration of the ball decreases as the spring extends.
c. The velocity of the ball changes from positive to negative as the spring shrinks.
d. The velocity of the ball changes from negative to positive as the spring extends.

Answers

Answer:

F = M a    Newton's second law

F = - K x     force exerted by compressed spring

a = - K x / M

a) is true because the ball originally is accelerated due to gravity and this acceleration will decrease as the spring in compressed

One could argue for (d) if the downward direction was designated as negative

Prior to maximum compression of the spring the velocity would negative and as the spring began to extend (and the ball began move upward) the velocity of the ball would change from negative to positive

5.
1
Shown above is a wire that is carrying current in a magnetic field. The magnetic field
is coming out the plane of the page.
What is the direction of deflection of the wire?
A) Upwards
B) Downwards
C) To the left
D) To the right

Answers

Answer:

The direction of defliection of the site to the left I think ..

Defects of vision and their correction drawing ​

No Spams ❌❌

Answers

Answer:

Vision Correction

You probably know people who need eyeglasses or contact lenses to see clearly. Maybe you need them yourself. Lenses are used to correct vision problems. Two of the most common vision problems are myopia and hyperopia.

Explanation:

hope this helps

a car advertisement States that a certain car can accelerate from rest to70km/h in 7seconds find the car's average acceleration​

Answers

Answer:

Acceleration is 2.78 m/s²

Explanation:

Since the car is from rest, initial velocity, u is zero.

from first newton's equation of motion:

[tex]{ \bf{v = u + at}} \\ [/tex]

v is final velocity

u is initial velocity

a is acceleration

t is time

70 km/h is (70 × 1000 ÷ 3600) m/s = 19.44 m/s

[tex]{ \sf{19.44 = 0 + (a \times 7)}} \\ { \sf{7a = 19.44 }} \\ { \sf{a = 2.78 \: {ms}^{ - 2} }}[/tex]

A playground merry-go-round spins about its axis with negligible friction. A child moves from the center of the merry-go-round to the rim. For this system, indicate which of the following quantities change.
A. Potential energy
B. Angular momentum
C. Mass
D. Moment of inertia
E. Angular speed
F. Rotational kinetic energy

Answers

Answer:

B

Explanation:

In this process on merry go round there is not any external torque so angular momentum will be conserve. Mass is always conserved.

which of the following are fundamental unit ?
I.candela
II.ampere
III.mole
IV.all of these​

Answers

Answer:

all of these very easy questions

pls give me an answer

Answers

Answer:

IV what is it's potential energy at the maximum height

A snail at position 3 cm moves to position 20 cm in 8 seconds
What is it's velocity ?
What is it's displacement ?​

Answers

Answer:

no worries

Explanation:

Leave it to me.

Answer:

17 cm

Because the equation you're using is ∆d=df

what is the name of the chart that contain elements?​

Answers

Answer:

Element Chart

Explanation:

It is a chart that provides many different elements.

The elevators in the John Hancock building in Chicago move 783 ft in 33 s. What is this speed in miles per hour?

Answers

Answer:

16.18 mph

Explanation:

the speed of elevators =

(783×3600)/(33×5280) =

2,818,800/174,240 = 16.18 mph

Record the length of the line shown in centimeters.
7.30
7.12
7.3
7.28
Please help will be marked most brainlist !!

Answers

Zooming I. On the image the red line is just short of the 3rd line past the 7 so it is not 7.3 but just a little under.

Answer: 7.28

According to the graph the acceleration of the object is ?

A) Constant
B) decreasing
C) increasing
D) zero

Answers

Answer:

your answer is (B) decreasing

I hope it's helps you

what is the density of a 75 g block of wood measuring 12 cm x 8cm x 9cm

Answers

Answer:

density is equal to mass divided by volume (m/v)

volume: 12×8×9=864cm³

75÷864=0.09

Answer: 0.09g/cm³

Why is running or jogging good aerobic excercise? Explain

Answers

Answer:

Running is faster, uses more kilojoules and demands more effort from the heart, lungs and muscles than jogging. Running requires a higher level of overall fitness than jogging. Both running and jogging are forms of aerobic exercise.

Explanation:

A car moves with an average speed of 45 mph. How long does a car take to travel 90 miles?

Answers

Answer:

It took 2 hours

Explanation:

[tex]{ \bf{time = \frac{distance}{speed} }} \\ [/tex]

distance is 90 miles

speed is 45 miles per hour

[tex]t = \frac{90}{45} \\ \\ t = 2 \: h[/tex]

Answer:

2 hours

Explanation:

45 times 2 is 90

Any two waves that meet as they travel through the same medium will interact. If the two waves are in phase their crests will coincide and they will experience _____ interference, producing a wave with a(n) _____ amplitude.

Answers

Answer:

constructive

alpitude

the density of the metal is 8.9g/cm³.what does it mean. What is the importance of the value​

Answers

Density of the metal is 8.9g/cm^3

It means per 1cm^3 Volume there is 8.9g of Mass occupied .

Density:-

[tex]\boxed{\sf Density=\dfrac{Mass}{Volume}}[/tex]

SI unit:-

SI unit of density is kg/m^3

CGS unit

CGS unit of density is g/cm^3

Is ambition a good or bad thing?

Answers

Answer:

some amount of ambition is good for your motivation but excess ambition is dangerous.

a hot metal block is placed into 50g of water in an insulated container the water increases in temperature from 20c to 32c the specific heat capacity of water is 4200j/kgk calculate the quantity of heat energy supplied to the water from the metal​

Answers

Answer:

25,000 joules

given the formula

Q=Mc(final temperature - initial temperature)

M=50 grams convert to kilogram 0.5

c= 4200 j/kg/k

final temperature=32c

initial temperature=20c

Can someone tell me which is which on what i put i dont know what i should put

Answers

I am not great at this so if I’m wrong I’m sorry.

Speed:
Distance per time
40 km/h
A scalar quantity

Velocity:
A vector quantity
20 m/s south
Displacement per time

what is pulley? How does it help in lifting weight?​

Answers

Hey there!

A pulley is a "system" that has a rope attached to carry heavy materials off the ground. Once you pull the rope, the heavy item will be carried.

Hope this helps!

Have a great day!

Using a pulley greatly multiplies the force of your physical efforts. A pulley with one wheel allows you to reverse the direction of your lifting force by pulling down on a rope (that's looped over the wheel), lifting your weight. ... The more wheels your rope can loop around, the more weight you will be able to lift.

plsss helpp will give brainliest!!!
here are answer choices for ALL of the blanks! :)
-flexibility
-cardiovascular fitness
-muscular fitness

Answers

Answer:

1. Flexibility.

2. Muscular Fitness

3. Cardiovascular Fitness

4. Cardiovascular Fitness

5. Flexibility

6. Muscular Fitness

7. Cardiovascular Fitness

A cyclist travels at 15 m/s during a sprint finish. What is this speed in km/h

Answers

Answer:

54km/hr

Explanation:

Since we have to complete m/s to km/h.

we can simply divide the m/s by (5/18)

so we get 54km/hr

How can radio waves & microwaves communicate over similar distances?

Answers

I think that this website will help out a lot! I looked up your question, and this website popped up first with a paragraph to explain an answer: https://revisionworld.com/gcse-revision/physics/electromagnetic-radiation/radio-waves-microwaves. I hope this helps!

A car starting from rest accelerated at a rate of 0 .5 m/s up to 2 km what would be the final velocity of the car and how much time would it take to cover 1.6​​

Answers

Initial velocity=u=0m/sAcceleration=a=0.5m/s^2Distance=s=1.6mFinal velocity=v=?

Using third equation of kinematics

[tex]\\ \rm\longmapsto v^2=u^2+2as[/tex]

[tex]\\ \rm\longmapsto v^2=0^2+2(0.5)(1.6)[/tex]

[tex]\\ \rm\longmapsto v^2=1.6[/tex]

[tex]\\ \rm\longmapsto v=\sqrt{1.6}[/tex]

[tex]\\ \rm\longmapsto v=0.4m/s[/tex]

Now using 1st equation of motion

[tex]\\ \rm\longmapsto v=u+at[/tex]

[tex]\\ \rm\longmapsto t=v-u/a[/tex]

[tex]\\ \rm\longmapsto t=\dfrac{0.4-0}{0.5}[/tex]

[tex]\\ \rm\longmapsto t=\dfrac{4}{5}[/tex]

[tex]\\ \rm\longmapsto t=0.8s[/tex]

Answer:

Using third equation of kinematics

[tex]\begin{gathered}\\ \rm\longmapsto v^2=u^2+2as\end{gathered}[/tex]

⟼v

2

=u

2

+2as

[tex]\begin{gathered}\\ \rm\longmapsto v^2=0^2+2(0.5)(1.6)\end{gathered}[/tex]

⟼v

2

=0

2

+2(0.5)(1.6)

The same 200 N force acts on an area greater than 2m2.
What happens to the pressure?

Answers

the pressure is (200 N)/(10 cm2)×(100 cm/M)2=200,000 pa

what is 342 m/s in kilometers per hour?

Answers

Answer:  1231.2 km/h

Explanation: 342 x 3.6 ( because 1 m/s equal 3.6 km/h)


Convert: 110 km/h to m/s

Answers

Answer:

30.5555556 m/s

You can write like "30.56 m/s".

Answer:

Below

Explanation:

You can convert km/h to m/s by dividing the value by 3.6

      110 km/h / 3.6 = 30.5556 m/s

*not sure if your teacher wants you to round to sig figs for this but here it is anyways. Because 110 has 2 sig figs it would be :

    31 m/s

Hope this helps! Best of luck <3

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