While viewing the opening sequence of a film, identify the director's use of visual techniques. Record your observations in the chart.

$$\begin{array}{l}\text{Section 1: Framing} \\\text { What framing is used to film the protagonist? } \\ \text { Why do you think the director chose this framing? } \\ {\quad\text {(LS, MS, CU, ECU) } } \\ \text{Section 2: Angles} \\ \text{ What angles are used to film the opening scene? (eye} \\ \quad\text{level, high angle, low angle)} \\ \text{ Why do you think the director chose these angles?} \\\text{Section 3: Lighting and Point of View} \\ \text{ What kind of lighting is used? (high key,} \\ \quad \text{low key, neutral)} \\ \text{ Why do you think the director used this lighting?} \\ \text{ Why did the director choose this point of view?} \\ \text{ From which camera point of view is this shot?} \\\end{array}$$

When the Moon assumes its characteristic thin crescent shape, the position of the Sun is (a) almost directly in back of the Moon. (b) almost directly behind Earth, so that Earth is between the Sun and the Moon. $(c)$ at right angles to the line between the Moon and Earth.

The double-replacement reaction between silver nitrate and sodium bromide produces silver bromide, a component of photographic film. a. If 4.50 mol of silver nitrate react, what mass of sodium bromide is required? b. What mass of silver bromide is formed?

You drop a ball toward Earth. (a) What is the direction of the gravitational force exerted by Earth on the ball? (b) What is the direction of the gravitational force exerted by the ball on Earth? (c) Which exerts the greater force? (d) If Earth and the ball are initially stationary, how does Earth move after the ball drops? (e) If somebody in China drops an identical ball at exactly the same instant from the same height, how does that modify your answers? State your assumptions.

The mass of Venus is $81.5\%$ that of the Earth, and its radius is $94.9\%$ that of the Earth.

a) Compute the acceleration due to gravity on the surface of Venus from these data (in terms of $g_\text{E}$). b) If an object weighs $29.4\text{ N}$ on Earth, what would it weigh at the surface of Venus?

A spaceship leaves Earth traveling 0.65c. A second spaceship leaves the first at a speed of $0.91c$ with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired (a) in the same direction the first spaceship is already moving, (b) directly backward toward Earth.

Explain why the model

$$μ(x) = β_1 e^{β_2^x}$$

is not a linear model. Would taking the logarithms of both sides yield a linear model for lnμ(x)?

The weight of an object varies inversely with the square of its distance from the center of Earth. The radius of Earth is approximately $4000$ miles. If a person weighs $160$ pounds on Earth's surface, what would this individual weigh $8000$ miles above the surface of Earth?

Find out the monthly interest payment of the following situation. When an annual rate is given, assume that monthly interest rates are $1 / 12$ of annual interest rates. Sam bought a new TV for $\$ 2800$. He made a down payment of $\$ 400$ and then financed the balance through the store. Unfortunately, he was unable to make the first monthly payment and now pays $3 \%$ interest per month on the balance (while he watches his TV).

A film of soapy water (n = 1.33) on top of a plastic cutting board has a thickness of 233 nm. What color is most strongly reflected if it is illuminated perpendicular to its surface?

When the Moon assumes its characteristic thin crescent shape, the position of the Sun is (a) almost directly in back of the Moon. (b) almost directly behind Earth, so that Earth is between the Sun and the Moon. (c) at right angles to the line between the Moon and Earth.

A spaceship departs from Earth for the star Alpha Centauri, which is 4 light-years away in the reference frame of Earth. The spaceship travels at $0.75 \mathrm{c}$. How long does it take to get there $(a)$ as measured on Earth and $(b)$ as measured by a passenger on the spaceship?

One commonly used measure of inflation is the annual rate of change of the Consumer Price Index (CPI). A TV news story says that the annual rate of change of the CPI is increasing. What does this say about the shape of the graph of the CPI?

Suppose the earth were a nonrotating uniform sphere. If there were an elevator shaft going $15,000 \mathrm{~m}$ into the earth, what would be the decrease in the weight of a student who weighs $800 \mathrm{~N}$ at the surface of the earth as he is lowered from the surface to the bottom of the shaft?