On a particular railway a train driver applies the brake of the train at a yellow signal a distance of 1.0 kilometre from a red signal where the train stops the maximum deceleration of the train is 1.1 metres per second square assuming uniform deceleration what is the maximum safe speed of the train at the yellow signal

Explain what happens at the saturation point when adding salt to water at room temperature.

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.