1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
2 years ago
12

How long does 100m long train take a cross a bridge of length 4.9 km at a speed of 50m/s

Physics
1 answer:
elena55 [62]2 years ago
4 0

Answer:

it would take 100s for the train to crossthe bridge

You might be interested in
Which has the most momentum? (look at picture please)!!
aliina [53]

Answer: the top one

Explanation: hope this helps

6 0
3 years ago
Calculate the average times it took the car to travel 0. 25 and 0. 50 meters. Record the averages, to two decimal places, in Tab
Illusion [34]

The average speed of the given car is 2.22 s and 3.13 s for 0.25 m and 0.50 m distance respectively.

<h3>How to calculate the Average speed?</h3>

The average speed can be calculated by adding the speed of each trial divided by the number of trials,

For 0.25 m the average speed will be:

S_{avg} = \dfrac{2.24 + 2.21 + 2.23}{ 3}\\\\S_{avg} = 2.22

For the 0.50 m, the average speed will:

S_{avg} = \dfrac {3.16 + 3.08 + 3.15} {3 }\\\\S_{avg}  = 3.13\rm \  s

Therefore, the average speed of the given car is 2.22 s and 3.13 s for 0.25 m and 0.50 m distance respectively.

Learn more about Average speed:

brainly.com/question/26386984

6 0
2 years ago
A rubber balloon is rubbed with a PVC pipe and the rubber balloon becomes positively charged. Why is this? a) Because the rubber
pentagon [3]

Answer:

d)

Explanation:

Electrons are lost or gained when the ballon is rubbed with a PVC. As the rubber ballon lost electrons, it will have more protons, hence the positive charge. (More protons than electrons in the ballon).

4 0
3 years ago
Write short letters.
Svetradugi [14.3K]

Answer:

No. 67

Peter Street

12th Road

Chennai

24th June 201_

Dear Amrish

I have come to know that since your school has closed for the Autumn Break you have plenty of free time at your disposal at the moment. I would like to tell you that even I am having holidays now.

It has been a long time since we have spent some time together. If you are free, I would welcome to have your company this weekend. Why don’t you come over to my house and spend a day or so with me?

I am anxiously waiting for your reply.

Yours affectionately

your name

4 0
3 years ago
Read 2 more answers
The part of the atom that carries no electric charge
AlexFokin [52]
The answer is: A Neutron
7 0
3 years ago
Other questions:
  • Which is the correct scientific notation for 724,000,000,000?
    12·1 answer
  • When using science to investigate physical phenomena, which characteristic of the event must exist?
    13·1 answer
  • How do amplitude and frequency affect light energy? help asap !!!!!!
    14·1 answer
  • A car moving with a velocity of 20 meters/second has 1.8**10^5 joules of kinetic energy what is the mass of the car?
    10·1 answer
  • Which are strong bases? Check all that apply.<br> HCI<br> NaOH<br> NH3<br> H2CO3<br> ΠΗΝΟΣ<br> OKOH
    15·1 answer
  • 2NaOH + H2SO4 → Na2SO4 + H2O
    7·2 answers
  • How many teams make the NCAA Basketball tournament
    15·2 answers
  • Two wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 21 kg and the larger bottom crate has a m
    8·1 answer
  • A + 8.42 nC point charge and a - 3.75 nC point charge are 2.73 cm apart. What is the electric field strength at the midpoint bet
    13·1 answer
  • 10. Complete each of the following radioactive decay equations.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!