Measurements on an iron-core solenoid coil yield the following values: $V=$ $80 \mathrm{~V}, I=400 \mathrm{~mA}, P=25.6 \mathrm{~W}$, and $R=140 \Omega$. (The last measurement was taken with an ohmmeter.) What is the ac resistance of the solenoid coil?

How can we use the periodic table to determine the types of ions formed by some atoms?

Explain the difference between an IRA and a Keogh account. Explain who can have these types of accounts.

Predict which bond length will be the longest: C- F, C-I, C-Br.

Why is it unlikely that organic molecules would accumulate in the oceans today?

Estimate the net force on a 2.0-C charge at the origin of an $x y$-coordinate system if there is a $+5.0$-C charge at $(3 \mathrm{~m}, 0)$ and a $-3.0$-C charge at $(0,4 \mathrm{~m})$.

What types of evidence enable scientists to make inferences about the sizes, temperatures and distances of stars?

Male Rana catesbeiana bullfrogs are known for their loud mating call. The call is emitted not by the frog's mouth but by its eardrums, which lie on the surface of the head. And, surprisingly, the sound has nothing to do with the frog's inflated throat. If the emitted sound has a frequency of 260 Hz and a sound level of 75 dB (near the eardrum), what is the amplitude of the eardrum 's oscillation? The air density is

$$1.21 kg/m^3$$

.

Thomas Corporation’s adjusted trial balance contained the following liability accounts at December 31, 2017: Bonds Payable (due in 3 years) $100,000, Accounts Payable$72,000, Notes Payable (due in 90 days) $22,500, Salaries and Wages Payable$4,000, and Income Taxes Payable $7,000. Prepare the current liabilities section of the balance sheet.

In bright light, the pupils of the eyes of a cat narrow to a vertical slit 0.30 mm across. Suppose that a cat is looking at two mice 18 m away. What is the smallest distance between the mice for which the cat can tell that there are two mice rather than one using light 560 nm? Assume the resolution is limited by diffraction only.

An "interest only" mortgage is made for 80,000 dollars at 10 percent interest for 10 years. The lender and borrower agree that monthly payments will be constant and will require no loan amortization.

If the loan is repaid after 5 years, what will be the yield to the lender?

On January 1, 2019, Trueman Corp. issued $600,000 of 20-year, 11% bonds for$554,860, yielding a market (yield) rate of 12%. Interest is payable semiannually on June 30 and December 31.

a. Confirm the bond issue price.

An electric field points away from a charge. What is the sign of the charge?

Silver metal reacts with chlorine $\left(\mathrm{Cl}_2\right)$ to yield silver chloride. If $2.00 \mathrm{~g}$ of $\mathrm{Ag}$ reacts with $0.657 \mathrm{~g}$ of $\mathrm{Cl}_2$, what is the empirical formula of silver chloride?