Lúc 7h một ôtô bắt đầu khởi hành từ A chuyển động thẳng nhanh dần đều về B với gia tốc 0,5 m/s2. Cùng lúc đó, một xe thứ hai đi qua B cách A 125 m với vận tốc 18km/h, chuyển động thẳng nhanh dần đều về phía A với gia tốc 30 cm/s2.Tìm : a) Vị trí hai xe gặp nhau và vận tốc của mỗi xe lúc đó.Vẽ đồ thị vận tốc mỗi xe trên cùng một hệ trục tọa độ. Xác định thời điểm hai xe cách nhau 50m.
b) Xác định vị trí, quãng đường, vận tốc và khoảng cách hai xe lúc 9h30.

If jill was traveling at 300 miles in 4 hours due south what was his velocity in miles per minute a) 75 miles per hour due south b) .02 miles per second due south c) .5 miles per second due south d) 1 mile per hour due south

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?