The sun's apparent motion across the sky from East to West daily is due to theA) rotation of the sun.
B) rotation of the earth.
C) orbit of the earth around the sun.
D) orbit of the sun around the earth.

Answers

Answer 1

Answer: Rotation of the Earth contributes to the idea of the Sun setting and rising. The orbit of the Earth around the Sun results in the changing of seasons.

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A scientists is trying to decide whether an organism is unicellular or multicellular which information would help the scientist most make her decision?A.size of cells of the organism B.what the organism eats C.how many types of cells are in the organism D.how fast the organism grow
In the diagram, q1= +8.0 C, q2= +3.5 C, and q3 = -2.5 C. q1 to q2 is 0.10 m, q2 to q3 is 0.15 m. What is the net force on q2? Label sign for charges (+ or -). (Unit = N). pls help?
5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is _______.6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to _______.7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed _______ the conglomerate.8. Geologists use the principle of _______ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.9. Partings between adjacent beds of sedimentary rock may represent periods of _______, which could range from a few decades to a few centuries.10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means _______ material is at the top instead of at the bottom.
Determine the quantity of work done when a crane lifts a 100-N block from 2 m above the ground to 6 m above the ground. A.100 JB.200 JC.400 JD.600 J
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Summarize what you learned this week about the electromagnetic spectrumHINT: What is it? What does it organize? How do we use these EM waves in our lives?

Answers

Answer:

I only really know the "How do we use these EM waves in our lives?" part srry

Explanation:

EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.

Electromagnetic spectrum consists of
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
X-ray
Gamma ray

We use these everyday in our life however they also have dangers.

Radio waves - their long wavelength allows them to help with communication
Danger - exposure to a lot of radio waves can cause cancer or leukaemia

Microwaves - used for heating up food and transferring heat to the food.
Dangers - exposure can cause cancers and other diseases.

Infrared - can be used for remote controls and security cameras.
Danger - can cause damage to the cornea in your eye

Visible light - used for photography and optical fibres.
Danger - intense sources can cause permanent or temporary damage to the eyesight.

Ultraviolet - can be used to sterilise food and sterilise surgical equipment.
Danger - can cause skin damage and may lead to a cancer.

X-rays - used to see the internal structure of tissues and bones.
Dangers - can lead to mutations and May damage the cells

Gamma- can be used to sterilise food and surgical equipment and kill microorganisms and other bacteria.
Dangers - May reach your cells and cause cancer and cell mutations which could result in mutations.

look around you to find an object in motion.Describe the object's motion by discussing its position and direction of motion in relation to a reference point.Then explain how you can determine the object's speed

Answers

the object in motion is a car. the car's motion is fast and bright in color. I can determine the speed of the car by the speed limit at the moment and upping it if the car is moving faster.

Final answer:

The motion of a car in relation to a reference point can be described by its position and direction. Speed can be determined by measuring the distance traveled in a specific time period.

Explanation:

A moving car can be an object in motion. In relation to a reference point, such as a stationary tree, the car's position and direction of motion can be described. For example, the car may be moving to the right of the tree.

To determine the car's speed, you can measure the distance it travels in a certain amount of time. For instance, if the car travels 100 meters in 10 seconds, its speed would be 10 meters per second (m/s).

In summary, by observing the position and direction of motion of an object in relation to a reference point, you can describe its motion. And by measuring the distance it covers in a given time period, you can determine its speed.

Learn more about motion here:

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What does sealant restorations mean?

Answers

Sealants are used to protect healthy teeth that have a high potential for decay. Most often, these are the molars with deep grooves. A PRR, preventive resin restoration, is a type of filling that is placed when a cavity has begun and is infiltrating the grooves in the chewing surface of the tooth............

What are cirrus.cirrostratus. And cirrocumulus clouds made up of

Answers

1. All clouds are made up of tiny ice crystals or small water droplets that form together with a dust on the atmosphere.
Cirrus, cirrostratus and cirrocumulus are made up of ice crystals. It forms when the water vapor goes condensation at high altitudes in where the pressure on the atmosphere reaches the point from 600 mbar at 4000 meter above the sea level up to 200mbar at 12 000m above sea level. These clouds form thunderstorms, cyclones and contrails (a manmade cloud).

Lenses in eyeglasses change the direction of light rays to help the lens of the eye form an image inside the eye . What process take place in the eyeglass lenses ?

Answers

To make this process happen, the eye contains a lens between the retina and the pupil. The lens and the cornea, a transparent covering, then work together, focusing the image on the retina. Vision problems occur when the image focused on the retina is focused either too far back, resulting in farsightedness or too far in, resulting in nearsightedness. In combination with these conditions, glasses may also work to assist with those suffering from crossed eyes, where the eyes refuse to focus together, which produces two of the same object in the field of vision, which results in blurriness of both objects. How glasses correct these problems is determined by what kind of lens the glasses are made of. The two types of lenses are the plus and minus lens. The plus lens has a convex shape, which focuses images on the retina when the eye’s lens originally focuses the image too far back. The minus lens has a concave shape, which focuses images on the retina when the eye’s lens originally focuses the image too close. Different strengths of these lenses determine how far back or how far forward the focus should be brought so that the image is displayed correctly on the retina.

Which form of energy is observed when an athlete runs