xác định áp suất dư tại điểm A trong ống có hai loại chất lỏng nước và thủy ngân H=50cm. Biết trọng lượng riêng của nước là 9810(N/m^2) . Trọng lượng riêng của thủy ngân gấp 1.5 lần của nước áp suất khí trời là 1at

Idont understand the question

No bc a lot of things r still theories n unproven

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

Your answer is 120miles