The velocity of a bus increases from 27km/h to 30m/s in . Calculate its acceleration.

Answers

Answer 1

Answer:

No time interval???

Explanation:

convert from km/h to m/s (speed)

27×1000/3600

27000/3600

=7.5m/s

a= v-u/t

v(final velocity) is 30m/s, u(initial velocity) is 7.5m/s

a= 30-7.5/t

a= 22.5/t (m/)


Related Questions

Question one, I understand that the answer is C but why?

Answers

Umm I need more context maybe a picture?

what is one effective way to calibrate a thermometer

Answers

Calibration can be defined as the way an instrument is adjusted such that the measurement the instrument gives after calibration is precise and accurate.

One effective way to calibrate a thermometer is the use of ice water.

A thermometer can be defined as the instrument used to measure the temperature of a person or a substance.

A thermometer should be calibrated regularly in order to maintain a high level of precision and accuracy.

One of the effective ways to calibrate a thermometer is through the use of ice water.

The steps to calibrate a thermometer are given below:

Get a bowl, place some ice cubes in it and add additional cold water to it.    Place thermometer probe between 2 -3 inches deep in the water. For accurate calibration, make sure you prevent the thermometer from touching the sides of the glass.  Stir and wait for a few seconds. The thermometer should be properly calibrated when you read the measurements and it says 32°F

To learn more, visit the link below:

https://brainly.com/question/11288363

Hii I need help ASAP with this physics question

A roller coaster has two vertical loops one after the other. The roller coaster has a speed of 7m/s at the top of the first loop with a height of 22.2m. It then proceeds around the second vertical loop with a height of 15.0m. What is the speed of the roller coaster at the top of the second vertical loop?

a.7m/s b.13.8m/s c.8.40m/s d.9.24m/s e.11.2m/s

Plz explain I can’t understand the question what I’m I supposed to use to calculate

Answers

Between the top of the first and the top of the second loop, the coaster has lost potential energy = mgh, where h = 22.2 - 15 = 7.2m

This energy would have converted to Kinetic. Write out an equation and the masses will cancel out. Does that hint help you to find the solution? If not, I will give you another hint.

Differentiate x sin nx

Answers

Answer:

x sin nx = x cos nx

same as

theta  / theta x    (xsin (nx)) = sin (nx) + (nx) cos (nx)

Xsin is an evil monster made my the Gods

calculate the volume of sphere with radius 7 cm​

Answers

Explanation:

the formula is:

[tex](4\pi \times r {}^{3} ) \div 3 [/tex]

where r is the radius

so

(4π × 7³) ÷ 3 =

(4π × 343) ÷ 3 =

[tex] \frac{1372\pi}{3} [/tex]

Answer:

V=4 /3πr3

=4/ 3·π·73

≈1436.75504cm³

Explanation:

which state of matter has the greatest amount of kinetic energy?

Answers

Answer:

A pure substance in the gaseous state contains more energy than in the liquid state, which in turn contains more energy than in the solid state. Particles has the highest kinetic energy when they are in the gaseous state.

Explanation:

Sana makatulong.

Which statements are true?​

Answers

Answer:

10

Explanation:

yum lang po alam ko sana po tama yun

How do the force factors compare to the products of the masses?​

Answers

Answer:

The force is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Please help with this :(

Answers

Answer:

I'm sorry I don't have a answer but I like your pfp

I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D

Answers

Answer

both earthquakes and tsunamis have waves  

Explanation:

Tsunamis are caused by earthquakes, underwater land slides, volcanic eruptions, and land sloping into the ocean. An earthquake is rapid shaking of the earths surface. It's no wonder earthquakes cause mass destruction, because they occur when two plates collide. Also earthquakes occur more often than tsunamis do.

Can someone help me with this? (The answer marked in red text is a incorrect answer)

Answers

Answer:

the answer is A

Explanation:

because I just know

. In a wave, …………………… is carried from one place to another.
1.Energy
2.Transverse 3.Longitudinal
4.Medium

Answers

Answer:

The answer is energy it can be carried from one place to another.

please mark this as brainliest

Answer:

energy

Explanation:

In a wave phenomenon, energy can move from one location to another, yet the particles of matter in the medium return to their fixed position. A wave transports its energy without transporting matter. Waves are seen to move through an ocean or lake; yet the water always returns to its rest position.

if you throw a football straight up with a velocity of 20m/s, what is its velocity when you catch it ?

Answers

Answer:

20 m/s

Explanation:

When we throw a football straight up it comes back with the same velocity.

Potential energy due to an object's comparison or extension is called what potential energy

Answers

Answer:

Elastic potential energy

Pleaseee helppp I need help I don’t know how to do this

Answers

Answer:

1)So, the mass(m) of the tv is 75kg and the scale(weight)=825 N therefore you devide the weight by the mass which is equal to 11m/s^2

2)First things first you need to know the gravitational force here on earth which is 9.8(approximately 10) I will sove for 9.8 and 10 so you can choose

the fish has a mass of 2.4kg and the gravity= 9.8 so the weight is equal to the mass*gravity= 23.52

now if you use 10 as the gravity= 2.4*10= 24

3) here the weight is 250N and gravity is 9.8(10) so we just devide the weight by the gravity= 250/9.8= 25.51

                         250/10= 25( if gravity is 10)

Answer:

Explanation:

12.since W=mg where m is mass and g which is accelaration due to gravity,

  g=825N/75kg

  g=11 m/s^2

13.W= 2.4kg * 9.81m/s^2

      =23.544kg m/s^2=23.544N

14.m=250N/9.81ms^-2

       =25.48kg

NEED HELP!!!! 10 POINTS!!!

Tracking your exercise can help you stick with an exercise routine.
A.
True
B.
False

PLEASE NO LINKS

Answers

Answer:

true

Explanation:

Answer:

yes

Explanation:

A

HOPE IT HELPS

:)

HAVE A GREAT DAY

..

what form of energy is released by radioactive particles during a nuclear reaction.​

Answers

The energy of nuclear fission is released as kinetic energy of the fission products and fragments, and as electromagnetic radiation in the form of gamma rays; in a nuclear reactor, the energy is converted to heat as the particles and gamma rays collide with the atoms that make up the reactor and its working fluid, ...

a body dropped from a height reaches a velocity of 13m/s just before touching the ground. What is the initial height of the ball and the time of height​

Answers

Hi there!

We can use the following (derived) equation to solve for the final velocity given height:

vf = √2gh

We can rearrange to solve for height:

vf² = 2gh

vf²/2g = h

Plug in the given values (g = 9.81 m/s²)

(13)²/2(9.81) = 8.614 m

We can calculate time using the equation:

vf = vi + at, where:

vi = initial velocity (since dropped from rest, = 0 m/s)

a = acceleration (in this instance, due to gravity)

Plug in values:

13 = at

13/a = t

13/9.81 = 1.325 sec

Which of the following best describes why longitudinal waves cannot travel in space?

Answers

Answer:

A longitudinal wave travels by displacement of material objects.

Air (for instance) particles transmit waves by their oscillation

Space has no material particles to transmit these waves.

.) What force is causing the ball to speed up down the ramp?​

Answers

the answer is gravity

gravity pulls things down

The change in speed on sloped is due to gravity

составьте сложный план к тексту казахстан принимает азиаду

Answers

Answer:

no hablo russian

how long does an electric car last before recharging?

Answers

Answer:

It will last until 100 miles.

Một đoàn tàu đang chuyển động với vận tốc v0 =72km/h thì hãm phanh chuyển động chạm dần đều sau 10 giây đạt vận tốc v1= 54km/h hỏi
Sau bao lâu kể từ lúc hãm phanh thì tàu đạt v = 36km/h và sau bao lâu thì dừng hẳn

Answers

Answer:

I don't understand ,I'm sorry

The precision of a balance is ±0.02 g. The accepted value for a measurement is 26.86 g. Which measurement is in the accepted range?

Answers

[tex]\sf{ [26.84, 26.88]  }[/tex]

Explanation:

The precision of a balance is ±0.02 g.

The accepted value for a measurement is 26.86 g.

The accepted range is:

=[26.86-0.02, 26.86+0.02]

= [26.84, 26.88]  

are intramolecular forces stronger than intermolecular?

Answers

Answer:

syk

yidixilyyiyoiydiydil5dmi6dmiydl

write the energy conversion when a moving car braking to stop completely​

Answers

Answer:

Friction braking is the most commonly used braking method in modern vehicles. It involves the conversion of kinetic energy to thermal energy by applying friction to the moving parts of a system. The friction force resists motion and in turn generates heat, eventually bringing the velocity to zero.

URGENT PLEASE HELP

A ball is thrown upward from the top of a 22.0 m tall building. If the ball's initial speed is 11.0 m/s and travels to a height of 6.2 m, with what final velocity does the ball hit the ground?​

Answers

Answer:

It is launched with a speed of 11 m/s.

Explanation:

I need help with my homework

Answers

Answer:

The answer is B.

Explanation:

This is because the loyalists did not agree with fighting back against Britain and wanted to remain a part of Britain, while the other answers show examples of people who wanted to break away from or rebel against Britain

HELPPPPPP

The free body diagram for an object is drawn below. Calculate the net force acting on the object. If this object is 10 kg, how/where will it accelerate

Answers

Answer:

sowi d ko po knows hehe need ko lang po ng points

Explanation:

hope u understand

What materials I need for glass

Answers

Answer:

sand and heat are the things you need

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