1. Determine whether each of the following is an internal control strength or weakness. Explain your answer.

1. Receiving department manager places an order with the vendor for merchandise inventory.

2. A voucher is used to certify a transaction and authorize recording of the liability.

3. Goods are received by the receiving department and documented with a receiving report.

4. Accounting department pays the vendor's invoice before goods are received.

5. Invoices are paid after completion of the invoice approval documenting the purchase requisition, purchase order, receiving report, invoice, and approval for payment.

Pedro, who is a single taxpayer, had AGI of $347,200 for 2016. He incurred the following expenses during the year:

Medical expenses before 10%-of-AGI limitation $20,540

State and local income taxes $10,416

Real estate taxes $2,083

Home mortgage interest $17,360

Charitable contributions $4,166

Deductible investment interest expense $1,562

Compute the amount of Pedro's itemized deductions after any applicable reductions. Round your computations to the nearest dollar and use rounded amounts in subsequent calculations.

You invest in a mutual fund that charges a 3% front-end load, 1% total annual fees, and a 0% back-end load on Class A shares. The same fund charges a 0% front-end load, 2% total annual fees, and a 2% back-end load on Class B shares. If you plan to sell the fund after 4 years, which is a better choice, Class A shares or Class B shares?  Assume $100 is invested, and assume a 10% annual return before expenses.

Two satellites, A and B, both of mass m = 115 kg, move in the same circular orbit of radius r = 7.57 106 m around Earth but in opposite senses of rotation and therefore on a collision course.

a) What is the total mechanical energy E_A + E_B of the two satellites + Earth system before the collision?

b)If the collision is completely inelastic so that the wreckage remains as one piece of tangled material (mass = 2m), what is the total mechanical energy immediately after the collision?

answer has to be in J

You are provided with 5.05g of SO2 to react with 2.45 gg of O2. Indicate your theoretical yield by completing the following statements.

Match the chemical formulas and amounts in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

The limiting reagent in the reaction is?

Regarding the theoretical yield based on the limiting reagent,(---------)mol of SO3 can be formed, which corresponds to a mass of ( --------)

The excess reagent was ( -------) and after the limiting reagent is consumed during the reaction, the mass of excess reagent remaining will be ( ----------)?

If 1.5 moles of hexane ( ) combust to completion: 6 14 C H

2.1 How many moles of CO2 would we have at the end of the reaction? [1]

2.2 How many moles of H2O would we have? [1]

2.3 How many moles of O2 would be consumed? [1]

2.4 What mass of oxygen would this correspond to? [2]

2.5 If after complete combustion, it is found that the combustion product contains 10% (mole) of oxygen. What was the mass fraction of oxygen in the mixture before combustion? [3]

You have been asked by the president of your company to evaluate the proposed acquisition of a new special purpose truck for $50000. The truck falls into the MACRS 3 year class,and it will be sold after three years for $19400. Use of the truck will require an increase in NWC (spare parts inventory) of $1400. The truck will have no effect on revenues but it is expected to save the firm $17100 per year in before tax operating costs,mainly labor. The firms marginal tax rate is 34 percent. What will the cash flows for this project be?

   A widget-rationing program requires that anyone who buys widgets first pay a lump sum for a license; i.e. the consumer cannot buy widgets without a license. The license allows the consumer to buy any number of widgets at the controlled price. The proceeds from the sale of the licenses are used to reduce income taxes for widget buyers and non-buyers alike.

With widgets on the x-axis and income on the y-axis, draw the budget constraint before and after the imposition of the license for a consumer who does not buy a license.

Two carts with masses 250. g and 200. g are free to slide without friction on a horizontal airtrack.  The 250.g cart is pushed against a spring, compressing it by 3.00 cm, then released.  It slides towards the initially stationary 200 g mass and collides with it.  After the collision the 200. g mass has a forward velocity of 0.450 m/s and the 250. g mass has a forward velocity of 0.250 m/s.
a)  What was the velocity of the 250. g cart just before the collision?
b)  What was the spring constant?