What is the main difference between a conceptual model and a physical model?

On december 31 of the current year, the unadjusted trial balance of a company using the percent of receivables method to estimate bad debt included the following: accounts receivable, debit balance of $97,900; allowance for doubtful accounts, credit balance of $1,031. what amount should be debited to bad debts expense, assuming 6% of outstanding accounts receivable at the end of the current year are estimated to be uncollectible?

Motonous corporation has completed its fiscal year and reported the following information. the company had current assets of $153,413, net fixed assets of $ 412,331, and other assets of $7,822. the firm also has current liabilities worth $65,314, long-term debt of $178,334, and common stock of $162,000. how much retained earnings does the firm have?

Of the following combinations of financial instruments, which depicts the correct ranking of high to low risk (moving from left to right)? commercial paper; preferred stock; bankers' acceptances state & local government bonds; u. s. treasury bonds; aaa-rated corporate bonds common stock; leases; u. s. treasury notes preferred stock; common stock; u. s. treasury bills