Physics, 18.10.2019 19:30, amiramoonbeam

Freight trains can produce only relatively small acceleration and decelerations. (a) what is the final velocity (in m/s) of a freight train that accelerates at a rate of 0.0400 m/s2 for 8.00 min, starting with an initial velocity of 3.00 m/s? 22.2 correct: your answer is correct. m/s (b) if the train can slow down at a rate of 0.550 m/s2, how long (in s) will it take to come to a stop from this velocity? incorrect: your answer is incorrect. s (c) how far (in m) will it travel in each case?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 18:10, HOTaco554

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Answers: 1

continue

Physics, 22.06.2019 11:10, myamiller558

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

Answers: 3

continue

Physics, 22.06.2019 17:50, marianamartinez6

If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around

Answers: 2

continue

Physics, 22.06.2019 19:40, xman32201

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Answers: 1

continue

Do you know the correct answer?

Freight trains can produce only relatively small acceleration and decelerations. (a) what is the fin...