Listed below are the transactions of Yasunari Kawabata, D.D.S., for the month of

Question

Listed below are the transactions of Yasunari Kawabata, D.D.S., for the month of September. Kawabata begins practice as a dentist and invests $20,370 cash. Purchases dental equipment on account from Green Jacket Co. for $17,280. Pays rent for office space, $808 for the month. Employs a receptionist, Michael Bradley. Purchases dental supplies for cash, $1,023. Receives cash of $1,740 from patients for services performed. Pays miscellaneous office expenses, $500. Bills patients $5,850 for services performed. Pays Green Jacket Co. on account, $4,150. Withdraws $3,590 cash from the business for personal use. Receives $1,030 from patients on account. Bills patients $2,500 for services performed. Pays the following expenses in cash: Salaries and wages $2,050; miscellaneous office expenses $97. (Record each separately.) Dental supplies used during September, $340. Record depreciation using a 5-year life on the equipment, the straight-line method, and no salvage value. Enter the transactions shown above in appropriate general ledger accounts (use T-accounts).

Explanation / Answer

R = (1-2t )i- t^2 j + e^t k

Vx= -2 i

Vy = -2t

Vz = e^t

Ax= 0,

Ay=-2

Az=e^t

a) at t=0,

Vx= -2

Vy = -2*0=0

Vz = e^0=1

b)Ax= 0,

Ay=-2

Az=1

c)speed = sqrt (2^2+1) = sqrt 5

d) direction = ( -2 i + k)/sqrt 5

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