Equipment acquired at the beginning of the year at a cost of $280,000 has an estimated residual value of$45,000 and an estimated useful life of 16 years. Determine (a) the double-declining-balance rate and (b) the double-declining-balance depreciation for the first year.

What is the current in a wire of radius R = 3.40 mm if the magnitude of the current density is given by (a)

$$J_a = J_0 r/R$$

and (b)

$$J_b = J_0(1 - r/R)$$

, in which r is the radial distance and

$$J_0 = 5.50 × 10^4 A/m²$$

? (c) Which function maximizes the current density near the wire’s surface?

What are the strength and direction of an electric field that will balance the weight of (a) a proton and (b) an electron?

The merchandise balance of trade of the United States has been negative since the ___________.

Determine the normal balance (debit or credit) for the account below.
 Cash

When evaluating exergy destruction, is it necessary to use an exergy balance? Explain.

Beginning with a circular piece of paper with a 4-inch radius, as shown in (a), cut out a sector with an arc of length x. Join the two radial edges of the remaining portion of the paper to form a cone with radius r and height h, as shown in (b). What length of arc will produce a cone with a volume greater than 21 ln.³?

How are the terms variety; balance, and moderation important in any eating plan?

Equipment acquired at the beginning of the year at a cost of $280,000 has an estimated residual value of$45,000 and an estimated useful life of 16 years. Determine (a) the double-declining-balance rate and (b) the double-declining-balance depreciation for the first year

Find the maximum shear stress in a $5 \frac{1}{2}-i n$-diameter circular saw blade if it runs idle at 5000 rev/min. The saw is 14 gauge (0.0747 in) steel and is used on a $\frac{5}{8}$-in-diameter arbor. The thickness is uniform. What is the maximum radial component of stress?

Which of the following steps is optional during the closing process?

a. Adjusting entries are journalized and posted to the ledger.
b. An end-of-period spreadsheet is prepared.
c. An unadjusted trial balance is prepared.
d. A post-closing trial balance is prepared.

Under the allowance method, how are accounts receivable shown on the balance sheet?

The current density inside a long, solid, cylindrical wire of radius $a$ is in the direction of the axis and varies linearly with radial distance $r$ from the axis according to $j=j_0 r / a$. Find the magnetic field inside the wire. Express your answer in terms of the total current $i$ carried by thz wire.

Let S be the hemisphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = a ^ { 2 }$, for $z \geq 0$, and let T be the paraboloid $z=a-\left( x ^ { 2 } + y ^ { 2 } \right) / a$, for $z \geq 0$, where $a>0$. Assume the surfaces have outward normal vectors.

Show that the flux of the radial field $F=\langle x , y , z \rangle$ across S is $2 \pi a ^ { 3 }$.