li1ndYshelinglerina li1ndYshelinglerina

03-01-2017
Mathematics

contestada

A 100-meter-long christmas train needs 30 seconds to cross a 400-meter-long bridge. assuming the train goes at a steady speed, how fast is it?

Respuesta :

texaschic101 texaschic101

03-01-2017

length of train : 100
length of bridge : 400
distance covered by the train to cross the bridge : (100 + 400) = 500
time taken by the train to cross : 30

speed = distance / time
speed = 500/30
speed = 16.67 meters per second <===

Answer Link

Otras preguntas

Rolling a six sided dice and getting a number less than 4

Help! Help !Fill in the blanks

Helen drives 195 miles in 3 hours. a) What is her average speed in mph? Matthew drives at an average speed of 62 mph for 5 hours. b) How many miles does Matthew

write a function interest() that takes one input, a floating-point interest rate (e.g., 0.06, which corresponds to a 6% interest rate). your function should com

what is the best course of action if solid material remains in the flask after the heating step of recrystallization

The best example of cause and effect after the Congress of Vienna is Napoleon was defeated, so France started a revolution. Austria won territory in Italy, so I

* PLEASE ANSWER * Which choice is tangent?

Segu Find a formula for the nth term in this arithmetic sequence: a1 = 7, a2 = 4, a3 = 1, a4 = -2, ...

Graphically represent the increase in emission of greenhouse gasses in India over a period of 5 years.

What elements does a strong literary analysis always contain? Select two options. * relevant data * a clearly outlined plot * a thesis statement * a list of ste