![250[\frac{km}{h}]*1[\frac{h}{3600s} ]*1000[\frac{m}{1km} ]\\= 69.44[\frac{m}{s} ]](/tpl/images/0552/4884/61491.png)
![0.5*(8.63*10^{5})*(69.44)^{2}+W_{1-2}= 0.5*(8.63*10^{5})*(0)^{2}\\W_{1-2}=-2080.66*10^6[J]](/tpl/images/0552/4884/ba01f.png)
An Inter City Express train traveling at 250 km/h is
braked to a stop in a distance of 4820 m....
Physics, 18.03.2020 21:10 anthonyjackson12aj
An Inter City Express train traveling at 250 km/h is
braked to a stop in a distance of 4820 m. If the mass of the
train is 8.63 X 105 kg, what is the average braking force?
Answers: 1
Another question on Physics
Physics, 21.06.2019 23:00
In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?
Answers: 2
Physics, 22.06.2019 03:00
Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 14:00
Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car
Answers: 1
You know the right answer?
Questions
Business, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
History, 01.10.2019 01:30
History, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
Biology, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
Biology, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
Mathematics, 01.10.2019 01:30
