If a U-tube manometer has graduations every 0.1mmHg, what is the absolute error in :delta: h measured on the device? remember that :delta: h requires you to read from two points on the scale (i.e. :delta: h = h2-h1 )
The answer is apparently 0.71 but for some reason i am getting 0.071
i did (0.05)^2+(0.05)^2 all "square rooted".
Please someone help me !!