A train has a mass of 4.94E+6 kg and is moving at 56.1 km/hr. The engineer applles the brakes, which results in a net backward force of 1.64E+6 N on the train. The brakes are held on for 31.0 s. What is the new speed of the train?
Submit AnswerTres 0/99
How far does it travel during this period?
Submit Answer Tries 0/99
Post Discussion
Send Feedba

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

wavelength divides in half and speed stays the same.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.