If, at a given time, the position of a sub-atomic particle is precisely known, then:.a. its velocity cannot be precisely known. b. no other particles can have the same position. c. the time over which it was measured cannot be precisely known. d. the particle will disappear.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg