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Ari Moodley

Ari M.

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To determine the focal length $f$ of a converging thin lens, you place a $4.00-\mathrm{mm}$ -tall object a distance $s$ to the left of the lens and measure the height $h^{\prime}$ of the real image that is formed to the right of the lens. You repeat this process for several values of $s$ that produce a real image. After graphing your results as $1 / h^{\prime}$ versus $s$, both in $\mathrm{cm}$, you find that they lie close to a straight line that has slope $0.208 \mathrm{~cm}^{-2}$. What is the focal length of the lens?

To determine the focal length $f$ of a converging thin lens, you place a $4.00-\mathrm{mm}$ -tall object a distance $s$ to the left of the lens and measure the height $h^{\prime}$ of the real image that is formed to the right of the lens. You repeat this process for several values of $s$ that produce a real image. After graphing your results as $1 / h^{\prime}$ versus $s$, both in $\mathrm{cm}$, you find that they lie close to a straight line that has slope $0.208 \mathrm{~cm}^{-2}$. What is the focal length of the lens?

University Physics with Modern Physics

Use the slope formula to determine the slope of line. $\overleftrightarrow{CD}$

Use the slope formula to determine the slope of line. $\overleftrightarrow{CD}$

Geometry

Parallel and Perpendicular Lines

Slopes of Lines
A bar magnet is close to a metal loop. When this magnet is suddenly moved to the left away from the loop, as shown in Figure $21.55,$ a counterclockwise current is induced in the coil, as viewed by an observer looking through the coil toward the magnet. Identify the north and south poles of the magnet.

A bar magnet is close to a metal loop. When this magnet is suddenly moved to the left away from the loop, as shown in Figure $21.55,$ a counterclockwise current is induced in the coil, as viewed by an observer looking through the coil toward the magnet. Identify the north and south poles of the magnet.

College Physics

A stream of warm air with a dry-bulb temperature of $36^{\circ} \mathrm{C}$ and a wet-bulb temperature of $30^{\circ} \mathrm{C}$ is mixed adiabatically with a stream of saturated cool air at $12^{\circ} \mathrm{C}$. The dry air mass flow rates of the warm and cool airstreams are 8 and $10 \mathrm{kg} / \mathrm{s},$ respectively. Assuming a total pressure of $1 \mathrm{atm}$ determine ( $a$ ) the temperature, ( $b$ ) the specific humidity, and (c) the relative humidity of the mixture.

A stream of warm air with a dry-bulb temperature of $36^{\circ} \mathrm{C}$ and a wet-bulb temperature of $30^{\circ} \mathrm{C}$ is mixed adiabatically with a stream of saturated cool air at $12^{\circ} \mathrm{C}$. The dry air mass flow rates of the warm and cool airstreams are 8 and $10 \mathrm{kg} / \mathrm{s},$ respectively. Assuming a total pressure of $1 \mathrm{atm}$ determine ( $a$ ) the temperature, ( $b$ ) the specific humidity, and (c) the relative humidity of the mixture.

Thermodynamics: An Engineering Approach

Questions asked

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Nicole Krahulik verified

Numerade educator

mechanism reaction for the synthesis of 2-methyl-2-butene from 2-methyl-2-butanol using Concentrated Orthophosphoric acid as a regent

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Susan Hallstrom verified

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Write the common name of the following dicarboxylic acids: (2) 9.1.1 HO2C(CH2)5CO2H

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Prabhu Ramji verified

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A step up transformer has 12 turns on its primary coil and 44 turns on its secondary coil. If the voltage across the primary coil is 9.1 V, the voltage (in V) across the secondary coil is

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Supratim Pal verified

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, a long straight wire carries a current of I1 = 2.3 A and a circular loop of wire carries a current of I2 = 1.9 A. The radius of the loop is 0.9 m. What is the magnitude of the net magnetic field (in nT) at the center of the loop?

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Prabhu Ramji verified

Numerade educator

A particle with charge 0.165 C is accelerating uniformly at 1629.1 m.s-2 in a uniform magnetic field of strength 0.584 T, perpendicular to the field lines. If the velocity of the particle is 407.17 m.s-1 then the mass of the particle (in grams) is

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Ankur S verified

Numerade educator

A coil of wire consists of 43 turns, each of which has an area of 0.7 m2. A magnetic field is perpendicular to the surface of the coil. Initially, the magnitude of the magnetic field is 1.7 T and 7.6 s later, it has changed to 6.4 T. The average EMF (in V) induced in the coil during this time is:

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Ankur S verified

Numerade educator

In a mutual inductor, the EMF induced in the secondary coil when the current in the primary coil increases from 2.9 A to 4.8 A is –3.8 V. If the time taken for this change is 30.2 ms, the value of the mutual inductance (in H) is:

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Ankur S verified

Numerade educator

Unpolarized light is passed first through a polarizer, then an analyzer. The angle between the analyzer and the vertical is 9.3o. What percentage of the intensity of the unpolarized light emerges?

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INSTANT ANSWER

Use the slope of the graph above and the simplified equation for x = 0 to determine the experimental value of µ0. (R=0.135 m, N=1000)

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Determine the flux by measuring the area under the voltage versus time curve. Is the incoming flux significantly greater, less, or about the same as the outgoing flux?

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