An engineer in a locomotive sees a car stuck
on the track at a railroad crossing in front of
...
Physics, 09.09.2021 08:20 dudeguy3593
An engineer in a locomotive sees a car stuck
on the track at a railroad crossing in front of
the train. When the engineer first sees the
car, the locomotive is 330 m from the crossing
and its speed is 21 m/s.
If the engineer’s reaction time is 0.44 s,
what should be the magnitude of the minimum deceleration to avoid an accident?
Answer in units of m/s
2
.
Answers: 2
Physics, 22.06.2019 23:00
The average time that it takes for the car to travel the first 0.25m is s. the average time to travel just between 0.25 m and 0.50 m is s. given the time taken to travel the second 0.25 m section, the velocity would be m/s.
Answers: 1
Physics, 23.06.2019 09:00
Which statements best describe medical uses for radioactive isotopes? check all that apply. radioactive isotopes are used to detect medical problems. high-energy gamma rays are injected into the body. radioactive isotopes are used to treat some diseases. radiation is used to kill cancer cells. radioactive isotopes are directed at tumors from outside the body.
Answers: 1
Physics, 23.06.2019 11:00
Which temperature scale measures water boiling at 100 degrees? which temperature scale measures water boiling at 100 degrees?
Answers: 1
Physics, 23.06.2019 13:00
Why, on the molecular level, does changing the amount of baking soda or vinegar affect the amount of carbon dioxide gas produced?
Answers: 2
Business, 18.11.2019 17:31
English, 18.11.2019 17:31
Biology, 18.11.2019 17:31
English, 18.11.2019 17:31
History, 18.11.2019 17:31