Suppose you weigh 300N and you carry your books, which weigh 20N, to your class on the fourth floor. Each flight of stairs is 5 m
high. How much work did you do?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

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.