Physics, 01.11.2019 03:31 lilmamagodchild123
You are conducting an experiment inside a train car that may move along level rail tracks. a load is hung from the ceiling on a string. the load is not swinging, and the string is observed to make a constant angle of 45 degrees with the horizontal. no forces other than tension and gravity are acting on the load. which of the following statements are correct? choose all that apply. a) the train is an inertial frame of reference b) the train is not an inertial frame of reference c) the train may be instantaneously at rest d) the train may be moving at a constant speed in a straight line e) the train may be moving at a constant speed in a circle f) the train must be speeding up g) the train must be slowing down h) the train must be accelerating
Answers: 3
Physics, 22.06.2019 05:20
Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
Answers: 2
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
Answers: 1
Physics, 22.06.2019 15:00
Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.
Answers: 1
You are conducting an experiment inside a train car that may move along level rail tracks. a load is...
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