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
Marysya12 [62]
2 years ago
14

A 1 km long train is travelling at 30km/h. If the train enters a tunnel that is 1 km long, how much time will it take for the tr

ain to clear the tunnel?
Mathematics
1 answer:
Hoochie [10]2 years ago
8 0

Answer: 240 seconds OR 4 minutes

Step-by-step explanation:

Length of the train = 1 km

Length of the tunnel = 1 km

Therefore, length of the train + length of the tunnel = (1 + 1) km = 2 km

= 2000 m

Speed of the train = 30 km/hr = 8.333 metres per second

Therefore, time taken by the train to cross the tunnel = 2000 m/ 8.333 m/sec.

= 240 seconds = 4 minutes

You might be interested in
40 points first ten digits of pi do not copy and paste if you do i can tell and I will report you
Ipatiy [6.2K]

The answer is [ 3.1415926535 ]

pi or π is used to find the area and circumference of a circle. You can either solve it in terms of pi or solve with pi being 3.14.

Best of Luck!

8 0
3 years ago
Read 2 more answers
In a volcano, erupting lava flows continuously through a tube system about 17 kilometers to the sea. Assume a lava flow speed of
Komok [63]

Answer:

Distance = rate x time or d = rt...that means time t = d/r...and we have

t = 21 km / .5 km/hr = 42 hr

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Give an example of a real number, an imaginary number, and a complex number. Use examples that have not
irinina [24]

Answer:

Real number 5

Imaginary number 5i

Complex number 2+5i

Step-by-step explanation:

A real number is that number that can be represented on number line

There is no imaginary part in real number

Example of real number is 5

Imaginary number is that in which there is no real part

Example of imaginary number is 5i

When there is a combination of both real and imaginary part then number is called complex number

Example of complex number is 2+5i

6 0
3 years ago
Chose the equivelent expression for the scenario. phillip mows lawns fro $15 each. if he moves 6 lawn every week for 8 weeks. ho
Ipatiy [6.2K]

Answer:

15 x 6 x 8

Step-by-step explanation:

total money is cost per lawn times number of lawns per week times number of weeks

cost per lawn is $15

number of lawns per week is 6

number of weeks is 8

so cost total money is 15 x 6 x 8 which is none of them

where did the 20 and 11 come from?

3 0
3 years ago
1 Negative numbers do not need the<br>negative sign (-) in front of them.<br>O True<br>O False​
katrin [286]

Answer:

The answer is False

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help me with this?
    12·1 answer
  • 8.0 × 105 + 6.0 × 107 = A. 14,000,000,000,000 B. 140,000,000 C. 60,800,000 D. 68,000,000
    10·1 answer
  • Long division with decimals
    13·2 answers
  • Help me solve please
    8·1 answer
  • according to the general equation for conditional probability of p(an B) = 3/10 and P(B)= 3/5, what is P(A|B)
    10·2 answers
  • I need a solution to this quantitative aptitude problem<br>​
    9·1 answer
  • . <br> What is the coefficient of the xy-term in the expression 4x+5xy–2y?
    14·1 answer
  • Find the x intercept and y intercept of y= 3/7x-2
    10·1 answer
  • PLEASE ANSWER QUICK!
    13·1 answer
  • 3 positive integers have a mean of 5 and range of 10, what are the integers
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!