A locomotive pulls a train of 10 identical cars, on a track that runs east-west, with...
A locomotive pulls a train of 10 identical cars, on a track that runs east-west, with a force of 3.70 × 106 N directed east. What is the force with which the last car to the west pulls on the rest of the train? Assume east to be in the +x-direction. Enter a positive answer if force is due east and a negative answer if the force is due west.
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A locomotive pulls a train of 10 identical cars, on a track that
runs east-west, with...
A train locomotive pulls a train with a mass of 1.30 ✕ 107 kg on level...
A train locomotive pulls a train with a mass of 1.30 ✕ 107 kg on level rails. The locomotive exerts a constant force of 7.40 ✕ 105 N on the train. How much time does it take to increase the speed of the train from rest to 64.0 km/h? (Ignore any resistance force from the rails on the wheels of the train. Enter your answer in minutes.) ______min
Trains are connected by couplers, which are under tension as the locomotive pulls the train. Imagine...
Trains are connected by couplers, which are under tension as the locomotive pulls the train. Imagine you are on a train speeding up with a constant acceleration. As you move through the train from the locomotive to the last car, measuring the tension in each set of couplers, does the tension increase, decrease, or stay the same? When the engineer applies the brakes, the couplers are under compression. How does this compression force vary from the locomotive to the last...
Three identical train cars, coupled together are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s c...
Three identical train cars, coupled together are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s catches up with the three and couples to make a fourcar train. A moment later the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five car train. What is the speed of the five car train? Answer in m/s.
A toy freight train consists of an engine and three identical cars. The train is moving...
A toy freight train consists of an engine and three identical cars. The train is moving to the right at constant speed along a straight, level track. Three spring scales are used to connect the cars as follows: spring scale A is located between the engine and the first car; scale B is between the first and second cars; scale C is between the second and third cars. (a) If air resistance and friction are negligible, what are the relative...
2. A very long, straight wire runs from west to east. The wire is 17 m...
2. A very long, straight wire runs from west to east. The wire is 17 m long and carries a 2.6 A current that moves from west to east. a. Earth's magnetic field is approximately uniform, and is directed from south to north. At the location of the wire, the magnetic field has the strength 4.4 x 10-5 T. Calculate the magnitude and direction of the force that Earth's magnetic field applies to the wire. b. What is the magnitude...
(0) A car runs 25.0 m straight towards East (positive direction) in 2.50 s. It then...
(0) A car runs 25.0 m straight towards East (positive direction) in 2.50 s. It then runs backwards towards West 5.00 min 1.0 s. Then the car runs forward again for another 40.0 m in 4.0.s. Calculate the car's average velocity for the entire motion. (10pts) (2) A high speed train starts from rest with an acceleration of 5m/s for 22s. What is the final velocity? (10pts) (3) A high speed train starts from rest with an acceleration of 5m/s²...
A mouse, attempting to cross a road, first runs 6.5 m east, then 4.9 m west,...
A mouse, attempting to cross a road, first runs 6.5 m east, then 4.9 m west, then 1.7 m east, and finally 3.6 m west. What is the mouse's total displacement in m? (Assume the +x axis points east and include the sign in your answer only if the answer is negative.
Four forces act on an object, given by A = 36.3 N east, B = 37.3...
Four forces act on an object, given by
A = 36.3 N east,
B = 37.3 N north,
C = 90.7 N west, and
D = 62.7 N south.
(Assume east and north are directed along the +x-axis
and +y-axis, respectively.)
(a)
What is the magnitude of the net force (in N) on the object?
N
(b)
What is the direction of the force? (Enter your answer in
degrees counterclockwise from the +x-axis.)
° counterclockwise from the +x-axis
Four forces act on an object, given by A = 48.3 N east, B = 34.3...
Four forces act on an object, given by A = 48.3 N east, B = 34.3 N north, C = 80.7 N west, and D = 84.7 N south. (Assume east and north are directed along the +x-axis and +y-axis, respectively.)\ What is the magnitude of the net force (in N) on the object? ______N What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis.) ___° counterclockwise from the +x-axis
Four forces act on an object, given by A = 41.3 N east, B = 46.3...
Four forces act on an object, given by A = 41.3 N east, B = 46.3 N north, C = 74.7 N west, and D = 66.7 N south. (Assume east and north are directed along the +x-axis and +y-axis, respectively.) a.What is the magnitude of the net force (in N) on the object? ______________N b. What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis.) _______________ ° counterclockwise from the +x-axis
2. A very long, straight wire runs from west to east. The wire is 17 m long and carries a 2.6 A current that moves from west to east. a. Earth's magnetic field is approximately uniform, and is directed from south to north. At the location of the wire, the magnetic field has the strength 4.4 x 10-5 T. Calculate the magnitude and direction of the force that Earth's magnetic field applies to the wire. b. What is the magnitude...
(0) A car runs 25.0 m straight towards East (positive direction) in 2.50 s. It then runs backwards towards West 5.00 min 1.0 s. Then the car runs forward again for another 40.0 m in 4.0.s. Calculate the car's average velocity for the entire motion. (10pts) (2) A high speed train starts from rest with an acceleration of 5m/s for 22s. What is the final velocity? (10pts) (3) A high speed train starts from rest with an acceleration of 5m/s²...
Four forces act on an object, given by
A = 36.3 N east,
B = 37.3 N north,
C = 90.7 N west, and
D = 62.7 N south.
(Assume east and north are directed along the +x-axis
and +y-axis, respectively.)
(a)
What is the magnitude of the net force (in N) on the object?
N
(b)
What is the direction of the force? (Enter your answer in
degrees counterclockwise from the +x-axis.)
° counterclockwise from the +x-axis
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