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3 years ago

Lisa sees the image below as she researches the behavior of light.

Physics

2 answers:

Elza [17]3 years ago

7 0

Refraction. When light is distorted when going through a substance like water, it is being refracted.

aalyn [17]3 years ago

6 0

The answer to the question is Refraction.

EXPLANATION:

The spoon half dipped inside the water is appeared to be bent. This is due to the optical phenomenon called refraction.

Refraction is the property of light by virtue of which light ray bends away or towards the normal at the point of incidence when it incidents obliquely at the refracting surface.

In the given figure, light rays are coming from air which is optically rarer medium as compared to water. So, the ray, after striking the air-water interface, gets bent towards the normal in the optically denser medium i.e water. It is so because the velocity of light in optically denser medium is less as compared to rarer medium.

We view the object due to the light. As light rays are bent, so the spoon is appeared to be bent.

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A catapult’s lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever spring

vlada-n [284]

The answer is ELASTIC

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3 years ago

Read 2 more answers

Figure 1.18 (Chapter 1) shows the Hoover Dam Bridge over

stiks02 [169]

Answer: 7.436 s

Explanation:

This situation is related to vertical motion, specifically free fall and can be modelled by the following equation:

$y=y_{o}+V_{o} t+\frac{gt^{2}}{2}$

Where:

$y= 0m$ is the final height of the object (when it makes splash)

$y_{o}=271 m$ is the initial height of the object

$V_{o}=0 m/s$ is the initial velocity of the object (it was dropped)

$g=-9.8m/s^{2}$ is the acceleration due gravity (directed downwards)

$t$ is the time since the objecct is dropped until it makes splash

$0=y_{o}+0+\frac{gt^{2}}{2}$

Clearing $t$ :

$t=\sqrt{\frac{-2y_{o}}{g}}$

$t=\sqrt{\frac{-2(271 m)}{-9.8m/s^{2}}}$

Finally:

$t=7.436 s$

6 0

3 years ago

Which would require the greater energy; slowing down of the orbital speed of the Earth so it crashes into the sun, or speeding u

tresset_1 [31]

Answer: Speeding up the orbital speed of earth so it escapes the sun require the greater energy.

Explanation: To find the answer, we need to know more about the Orbital and escape velocities.

<h3>What is Orbital and Escape velocity?</h3>

Orbital velocity can be defined as the minimum velocity required to put the satellite in its orbit around the earth.
The expression for orbital velocity near to the surface of earth will be,

$V_o=\sqrt{gR}$

Escape velocity can be defined as the minimum velocity with which a body must be projected from the surface of earth, so that it escapes from the gravitational field of earth.
The expression for orbital velocity will be,

$V_e=\sqrt{2gR}$

If we want to get into the sun, we want to slow down almost completely, so that your speed relative to the sun became almost zero.
We need about twice the raw speed to go to the sun than to leave the sun.

Thus, we can conclude that, the speeding up the orbital speed of earth so it escapes the sun require the greater energy.

Learn more about orbital and escape velocity here:

brainly.com/question/28045208

#SPJ4

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1 year ago

The waste product of photosynthesis is:

zalisa [80]

Answer:

The waste product of photosynthesis is oxygen

6 0

2 years ago