Author: Anonymous

Silicon, which makes up about 25% of Earth’s crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon. Isotope Isotopic Mass (amu) Abudance % 28Si 27.976927 92.22 29Si 28.976495 4.69 30Si 29.973770 3.09

Who discovered the neutron, the subatomic particle having a neutral charge?

When the value of something does not depend on the amount of the matter then what is this called?

How many neutrons are there in an atom of lead whose mass number is 208?

Companies typically provide four basic financial statements: the fixed income statement, the current income statement, the balance sheet, and the cash flow statement.

You recently sold 200 shares of Disney stock, and the transfer was made through a broker. This is an example of:

In general, it’s better to have a low inventory turnover ratio than a high one, as a low ratio indicates that the firm has an adequate stock of inventory relative to sales and thus will not lose sales as a result of running out of stock.

Wu Systems has the following balance sheet. Assume that all current assets are used in operations.  How much net operating working capital does the firm have?  Cash $ 100   Accounts payable $ 200 Accounts receivable 650   Accruals 155 Inventory 550   Notes payable 545 Current assets $ 1,300           Total current liabilities $ 900 Net fixed assets $ 1,000   Long-term bonds 600                Total liabilities   $ 1,500       Common stock 300       Retained earnings                 500               Common equity             $ 800  Total assets $ 2,300   Total liab. & equity $ 2,300

If a firm sold some inventory for cash and left the funds in its bank account, its current ratio would probably not change much, but its quick ratio would decline.

The annual rate of return on any given stock can be found as the stock’s dividend for the year plus the change in the stock’s price during the year, divided by its beginning-of-year price. If you obtain such data on a large portfolio of stocks, like those in the S&P 500, find the rate of return on each stock, and then average those returns, this would give you an idea of stock market returns for the year in question.