Suppose that photons of blue light (430 nm) are used to locate the position of a 2.80-g Ping Pong ball in flight and that the uncertainty in the position is equal to one wavelength. What is the minimum uncertainty in the speed of the Ping-Pong ball? Comment on the magnitude of your result.

Use your TI-83/89 to analyze the paper airplane flight distance data from the mentioned activity.

First, enter the data into your calculator and explore the data graphically. Does it appear that at least one of the means is different from the other means?

Airplane flight plan An airplane flying at a speed of $400 \mathrm{mi} / \mathrm{hr}$ flies from a point $A$ in the direction $153^{\circ}$ for $1$ hour and then flies in the direction $63^{\circ}$ for $1$ hour.

How long will it take to get back to point $A$ ?

Flight engineers for the Apollo Lunar Orbiter placed the orbiter $15 \overline{0} \mathrm{~km}$ above the surface of the moon. What was the Orbiter's (a) linear velocity and (b) period as it orbited the moon? (c) How would increasing the altitude affect the Orbiter's velocity and period?

A man of mass $80 \mathrm{~kg}$ runs up a flight of stairs $20 \mathrm{~m}$ high in $10 \mathrm{~s}$. (a) how much power is used to lift the man? (b) If the man's body is $25 \%$ efficient, how much power does he expend?

You allow 40 min to drive 25 mile to the airport, but you're caught in heavy traffic and average only 20 mile/h for the first 15 min. What must your average speed be on the rest of the trip if you're to make your flight?

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is $.02$. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will fail? Show all steps carefully.

The following statement contains an italicized vocabulary word or related form. Decide whether the sentence is true or false, and write True or False on the answer line.

Some people who live beneath the flight paths of airplanes never become inured to the noise level. __________________________

There are 20 first-class passengers and 120 coach passengers scheduled on a flight. In addition to the usual security screening, 10% of the passengers will be subjected to a more complete search.

Explain how you would use a random number table to select the coach passengers to be searched.

Raising cash by issuing capital stock is an example of

a. a financing activity.
b. an investing activity.
c. an operating activity.
d. a noncash transaction.
e. None of these.

On a recent flight between St. Louis and Los Angeles, one-fourth of the tickets sold were for seats in business class, one-tenth in first class, and the remaining 195 tickets were in coach class. How many tickets were sold altogether?

A light source consists of a green (530 nm) and a blue (430 nm) LED. Both LEDs emit light of the same intensity of $10^{3}$ photons emitted by the light source. (a) how many are photons of green light and (b) how many are photons of blue light?

The following condensed balance sheet is presented for the partnership of Der, Egan, and Oprins, who share profits and losses in the ratio of 4:3:3, respectively.

$$\begin{array}{lrlr} \text{Cash} & \$\hspace{5pt}40,000 & \text{Accounts Payable} & \$150,000\\ \text{Other Assets} & \text{710,000} & \text{Der, Capital} & \text{260,000}\\ && \text{Egan, Capital} & \text{180,000}\\ && \text{Oprins, Capital} & \text{160,000}\\ \hline \text{Total Assets} & \underline{\underline{\$750,000}} & \text{Total Liabilities \& Equity} & \underline{\underline{\$750,000}}\\ \end{array}$$

Assume that the partnership decides to admit Snider as a new partner with a 25 percent interest.

Required

Determine the amount that Snider must contribute in cash or other assets for the case below.

• The partners agree that total resulting capital should be $820,000 and no goodwill should be recognized.

From the list at the top of the next page, identify the accounts that should be closed to Income Summary at the end of the fiscal year: e. Fauzi Hanna, Capital