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

Two runners start the race at the same time. The first runner's speed is[tex] \frac{4}{5} [/tex] of the speed of the second runner. After 30 minutes, the runner

What is a literary trait/characteristic that one would NOT associate with "A Wagner Matinee," "In Another Country," "A Worn Path," or, from Black Boy? Question

Can someone please help me with this!!!

Pace is asked to give a speech to a local youth group. He considers his experience, hobbies, beliefs, values, and attitudes, how he enjoys spending his time, an

[tex]\boxed{\blue{\mathscr{Hello\:Brainliacs}}}[/tex]Thae value of [tex]\sf K_c[/tex] is 4.24 at 800K for the reaction ,[tex]\underline{\bf CO_(g)+H_2O_(g)\left

what would you expect to happen (chemically) if a piece of zinc metal were placed in a solution of magnesium nitrate?

Target organs most often regulate the pituitary gland via what

NEED HELP ASAP PLEASE!! The function F(x) = log5 x is increasing. O A. True B. False

if f(x)=x^2 and g(x)=2x+3, what is f(g(x))

What is the system of federal justices, organized into district courts and circuit courts, who hear appeals from lower courts, culminating in the supreme court?