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3 years ago

In a displacement/time graph the slope of the line is equal to the ________.

Physics

1 answer:

mamaluj [8]3 years ago

3 0

In a displacement/time graph, the slope of the line is equal to the velocity

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A block with mass m =7.4 kg is hung from a vertical spring. when the mass hangs in equilibrium, the spring stretches x = 0.22 m.

kolbaska11 [484]

This is given by F=kx. Since a force due to gravity is given by F=mg this is F=7.4kg*9.81m/s^2 = 72.594N. Put this force into the spring equation above and get 72.594N = k*0.22m. Solve for k to get 329.97N/m

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3 years ago

Psychophysic is the study of

Morgarella [4.7K]

Answer:

Psychophysics is the subfield of psychology devoted to the study of physical stimuli and their interaction with sensory systems.

Explanation:

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7 0

3 years ago

Read 2 more answers

When the time of day for a certain ship at sea is 12 noon, the time of day at the prime meridian (0 longitude0 is 5 pm. what is

azamat

A). The sun is highest in London, but will not pass the ship
for another 5 hours.

Since the sun moves from east to west, the ship must be
5 hours west of Greenwich.

Each hour of sun motion is 15° of longitude.
The ship's longitude is (5 x 15°) = 75° West.

The ship may be sailing down Columbia Boulevard
in Maple Shade, New Jersey.

B). The latitude at Buffalo's City Hall is 42.887° North.

Polaris is always within about 2/3 of a degree of that angle
above the northern horizon, when viewed from City Hall.

Choice 2) is the most appropriate.

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3 years ago

On, Inc., publishing as pe

enyata [817]

-carbon
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8 0

3 years ago

A ray diagram for a refracted light ray is shown.

Rina8888 [55]

The dashed line represents the<u> normal </u>to the boundary

Explanation:

Refraction is a phenomenon that occurs when a ray of light crosses the interface between two mediums.

When this occurs, the ray of light changes direction and speed.

The new direction of the ray of light is given by Snell's law:

$n_1 sin \theta_1 = n_2 sin \theta_2$

where

$n_1$ is the index of refraction of the 1st medium

$n_2$ is the index of refraction of thre 2nd medium

$\theta_1$ is the angle of incidence, which is the angle between the direction of the incident ray and the normal to the boundary

$\theta_2$ is the angle of refraction, which is the angle between the direction of the refracted ray and the normal to the boundary

The index of refraction of a medium is the ratio between the speed of light in a vacuum (c) and the speed of light in that medium (v):

$n=\frac{c}{v}$

The figure in the question is missing, however you can find it in attachment.

We see that the dashed line is perpendicualr to the boundary between the two mediums, so it represents the normal.

So, the correct answer is

Normal

We note that in this case the ray of light bends towards the normal, this means that $\theta_2$ , therefore the second medium has a larger index of refraction ( $n_2>n_1$ ).

Learn more about refraction:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

7 0

3 years ago