The a string of a violin is a little too tightly stretched. beats at 5 per second are heard when the string is sounded together with a tuning fork that is oscillating accurately at concert a (4.40 × 102 hz). what is the period of the violin string oscillation?

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

Diamond will scratch quartz. true or false

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present