A wave traveling in a string can be described by the function y of xt is equal to 3 times cosine of start parenthesis 0.5 times x minus 4 times t end parenthesis where x is measured in meters, y is measured in centimeters, and t is measured in seconds. What is the speed of this wave

How many atoms of nitrogen are in the chemical formula ni(w on

What is the major limitation to the light microscope?

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.