Physics, 27.06.2019 01:20 selenaK9514
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 degree with the horizontal. no forces other than tension and gravity are acting on the load. which of the following statements are correct?
(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 the train must be accelerating
Answers: 2
Physics, 22.06.2019 09:00
In the first law of thermodynamics, triangle e=q-w, what does q stand for
Answers: 1
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
You are conducting an experiment inside a train car that may move along level rail tracks. a load is...
Mathematics, 08.01.2021 19:50
Mathematics, 08.01.2021 19:50
Biology, 08.01.2021 19:50
Social Studies, 08.01.2021 19:50
Mathematics, 08.01.2021 19:50
Social Studies, 08.01.2021 19:50
Mathematics, 08.01.2021 19:50
Mathematics, 08.01.2021 19:50
History, 08.01.2021 19:50
Business, 08.01.2021 19:50