A train 552 m long is moving on a straight track with a

Assignment Help Civil Engineering
Reference no: EM13383598

A train 552 m long is moving on a straight track with a speed of 88.5 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 13.7 km/h. Assuming constant acceleration, determine how long the train blocked the crossing. Dis- regard the width of the crossing. 

Reference no: EM13383598

Questions Cloud

What should be the instantaneous rate of the first order : what should be the instantaneous rate of the first order decomposition of 3 h2o2 3g h2o2 per 100g solution? assume the
Identical bricks 01m wide and weighting 2kg are placed on a : identical bricks 0.1m wide and weighting 2kg are placed on a plate assume the plate has neligible weight. calculate the
Predict how the solubility of the ammoshynium chloride : if the temperature of the aqueous ammonium chloshyride system in part b were to be increased to 30c predict how the
You want to send music to the dorms with 15 khz of am : you want to send music to the dorms with 15 khz of am modulation frequency on a carrier of 1090 khz.if the carrier
A train 552 m long is moving on a straight track with a : a train 552 m long is moving on a straight track with a speed of 88.5 kmh. the engineer applies the brakes at a
Isopropyl alcohol c3h8o is sold in drug stores as rubbing : isopropyl alcohol c3h8o is sold in drug stores as rubbing alcohol. isopropyl alcohol is a water-soluble liquid with a
Preshydict how the enshythalpy entropy free energy and : when liquid water is introduced into an evacuated vessel at 25c some of the water vaporizes. preshydict how the
A zero-order reaction has a constant rate of 350times10-4 : a zero-order reaction has a constant rate of 3.50times10-4 mrm s. if after 65.0 seconds the concentration has dropped
How many seconds are required to produce 494 mg of chromium : how many seconds are required to produce 4.94 mg of chromium metal from an acidic solution of potassium dichromate

Reviews

Write a Review

Civil Engineering Questions & Answers

  What should the reading be at y to adjust collimation error

a level is setup midway between X and Y reads 5.572 ft on X and 4.946 ft. on Y. The level is setup very close to X and a reading of 4.666 ft. is taken on X. what should the reading be at Y to adjust any collimation error of the level

  Determine what is the present worth of the investment

Aerotron Electronics is considering purchasing a water filtration system to assist in circuit board manufacturing. The system costs $40,000. It has an expected life of 7 years at which time its salvage value will be $7,500.

  How many gallons of water per cubic yard should be added

given moisture contents of 5%, 9%, 14%, 22% and 25% with corresponding weights of 3.1, 3.42, 3.78,3.85, 3.77 lbs. of the compacted soil. (specific gravity =2.7)(compaction test using compaction mold of 1/30 ft^3).

  Component of the force fac along the axis of strut

Determine the projected component of the force fac along the axis of strut ao. Express the result as a cartesian vector.

  Find the location-velocity and acceleration of a box

The motion of a box on a spiral conveyor is defined by the following position vector: r = 0.5sin(2t) i + 0.5cos(2t) j - 0.2t k where r is in meters and t is in seconds. Find the location, velocity, and acceleration when t = 0.8 s.

  Calculate volume of thickened sludge with solids recovery

A gravity thickener receives 33.000 Lpd of wastewater sludge and increases the solids content from 3.0% to 7.0% with 90% solids recovery. Calculate the volume of thickened sludge.

  Determine the value of gravity in units of meters

if a ball is dropped from a height of 800 cemtimeters, and the impact velocity is 41 feet per second, determine the value of gravity in units of meters per second.

  What is difference between universal beam and steel section

What is the difference between universal beam and universal column steel sections in terms of performance in bending

  What is the hydrologic risk of occurring in the next 10years

Lake levels have been measured for the past 50 years at Cagles Mill Lake. The highest annual lake levels (in feet, mean sea level) on record are 887.5, 887.3, 886.5, 886.0, 885.9. The other 45 annual peaks are smaller.

  Determine what should the velocity for the model be

The prototype and model will both be in air, if the prototype has a velocity of 500 ft/s and a diameter of 30 ft, what should the velocity for the model be if the model diameter is 2 ft

  Determine the sludge age and cell wastage flow rate

Assume: Suspended solids in effluent negligible Wastage is from aeration tank Yield coefficient = 0.4 Bacterial decay rate = 0.04 1/d Effluent BOD5 = 10mg/L F/M = 0.33 mg/mg*d BOD5 after primary settling = 150mg/L MLVSS = 1700mg/L MLSS = 1.4(MLVSS..

  Find what is the greatest vertical height ball achieves

a ball is thrown with a valocity of 30 m/s at an angle of 40 degrees above the horizontal from the top of a 100m tall building. what is balls velocity when it lands. (neglect air resistance in both cases) DO NOT USE 2D projectile motions, only work ..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd