5. Is it likely that light with frequencies higher than ultraviolet wasthe main cause of Tía Ana’s cataracts? Explain why or why not.

Answers

Answer 1

Answer:

Answer: YES

Explanation:

If Tia Ana exposes her eyes to light ray in which it frequency is higher than ultraviolet ray, it may result to a gradual eyes issue such as cataracts as the radiation damages the cornea and the lens in front of the eyes.

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Please I need help on this

A skateboarder traveling at 4.45 m/s can be stopped by a strong force in 1.82 s and by a weak force in 5.34 s.The mass of the skateboarder and the skateboard is 53.6 kg.

What is the impulse on the skateboarder?
What is the average force on the skateboarder in each of these stops?

Answers

1) Impulse: $-238.5 kg m/s$

2) Strong force: -131.1 N, weak force: -44.7 N

Explanation:

The impulse exerted on an object is equal to the change in momentum of the object itself.

Mathematically:

$I=\Delta p=m(v-u)$

where

m is the mass of the object

u is the initial velocity

v is the final velocity

For the skateboarder in this problem, we have:

m = 53.6 kg

u = 4.45 m/s

v = 0 (it comes to a stop)

Therefore, the impulse is

$I=(53.6)(0-4.45)=-238.5 kg m/s$

Where the negative sign indicates that the direction is opposite to the motion of the object.

The impulse is also equal to the product between the force applied and the duration of the collision:

$I=F\Delta t$

where

I is the impulse

F is the average force

$\Delta t$ is the time during which the force is applied

The strong force is applied in a time of

$\Delta t = 1.82 s$

Therefore this force is

$F=(I)/(\Delta t)=(-238.5)/(1.82)=-131.1 N$

The weak force is applied in a time of

$\Delta t = 5.34 s$

So this force is

$F=(I)/(\Delta t)=(-238.5)/(5.34)=-44.7 N$

Learn more about impulse:

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For the examples below, explain what a physical change or a chemical change has occurred. Justify your answerA. When you mix baking soda and vinegar, carbon dioxide is released.

B. You build a tall sand castle at the beach. After wave washes it over, the sand castle turns into a big pile of sand

C. Boiling water turns a raw egg into a hard boiled egg

D. Max divided cookie dough into small pieces on a cookie sheet.

E. A loaf of freshly baked bread tastes better and looks much different than a lump of bread dough

F. A glass of water is left in the Sun. In the time, the water evaporates leaving the glass empty.

Answers

Letters A, E, and F undergo chemical change because new substances are formed as to carbon dioxide, bread, and water vapor respectively, whereby letters B, C, and D undergo physical change because the tall sand castle remains as sand, the raw egg remains as an egg as it hardens (boiled) and the cookies remain as cookies no matter how many times it was divided into smaller pieces. The later substances' chemical composition were never changed nor formed new substances as they undergo physical processes.

How does transpiration play a role in the water cycle ?

Answers

The process of transpiration is when water is released from the roots of plants into the air. Also, transpiration makes rain and humidity possible. Transpiration evaporates the water into the air so that it can fall as rain.

Transpiration is the water released into the air from the leaves

Explain the flow of electrons from the battery through the circuit

Answers

Answer:

Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.

Explanation:

Does the bowling ball have more potential energy or kinetic energy just before it hits the ground? Why?Answer:
EXPLAIN YOUR ANSWER OR YOU WILL NOT GET POINTS

Answers

Answer:

Explanation:

kenetic energy because it already hit the ground

Please select the word from the list that best fits the definition most destructive kind of mass movement

Answers

The most destructive kind of mass movement a landslide.

What is mass movement?why landslide definition most destructive kind of mass movement?

Mass movements are downhill events that transport sediment and other debris, and there are four types of mass movement that have varying degrees of destructiveness. They are landslides, flows, slumps, and creep.
The four types of mass movement include landslides, slump, creep, and mudflows. Landslides occur when masses of soil and rocks move down a steep slope.
The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil.

Landslide is the most destructive kind of mass movement.

To learn more about Landslide andmass movement refer:brainly.com/question/1909383

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There is no list but I would say a landslide.

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