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A student wishes to measure the speed of a toy car at the bottom of an inclined plane. Which information is needed to calculate speed?
a) the mass of the car and the height of the inclined plane b) the friction of the surface of the inclined plane and the mass of the car c) the length of the inclined plane and the time for the car to descend the inclined planed) the length of the car and the time for the car to descend the inclined plane
Helpppppppppp!!!!!
Answer:
c) the length of the inclined plane and the time for the car to descend the inclined plane.
Explanation:
The information that is needed to calculate speed is the length of the inclined plane and the time for the car to descend the inclined plane. Thus, the correct option for this question is C.
How speed is defined?Speed is defined as the rate of change of position of an object in any direction. It is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude.
If you want to calculate the speed of the car, you must definitely be required to determine the length of the inclined plane through which it is running along with the time for the car to descend the inclined plane. There are some necessary quantities that are required prior to determining the actual values in the same or different contexts.
Therefore, the correct option for this question is C.
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The main factors that determine aquatic biomes include
Amount of sunlight
Types of plants
Dissolved substance
Temperature and precipitation
Select all that apply
first and last answer choices
Why do we shiver? Provide at least 2-4 sentences. Don't plagiarize, I'll use my plagiarism checker.
Use the drop-down menus to select the names of the labeled structures.
A:
B:
C:
How does the frequency of a wave change as its wavelength changes
Describe the steps of the rock cycle and relate them to weathering, erosion, plate tectonics, and mountain building
Answer:
The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions. For example, an igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks do not remain in equilibrium and change as they encounter new environments. The rock cycle explains how the three rock types are related to each other, and how processes change from one type to another over time. This cyclical aspect makes rock change a geologic cycle and, on planets containing life, a biogeochemical cycle.
Explanation:
The Rock cycle is the geological concept, in which transitions between sedimentary, metamorphic, and igneous rocks over geologic time occurs. The transitions between rocks occur due to weathering, metamorphism, erosion, and sedimentation.
The steps involved in the rock cycle are:
Weathering refers to the breakdown or dissolving of the rocks on the Earth's surface. After the weathering, the process of erosion occurs in which rock particles and minerals are transported via plants, animals, wind, and water. The igneous rocks are formed by plate tectonics. The heat from the mantle fuels the plate tectonics, which converts the igneous and sedimentary rocks into metamorphic rocks. Mountain building is caused by the intense deformation of layered rocks and the activity of metamorphic and igneous rocks in the orogenic stage.
Thus, the rock cycle is involved in various processes and transitions among different types of rocks that occur in the rock cycle.
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Describe the process in the mantle that causes plates to move. In your response, provide the force driving this process and at least one piece of evidence to support this idea.
Which process only exists because humans changed the carbon cycle? *
A (plants taking in CO2 during photosynthesis)
B (animals respiring/exhaling greenhouse gasses)
C (fossil fuel combustion to make energy)
D (plants dying and decomposing in the soil)
E (buried remains of once-living things turning to fossil fuels)
Below is a carrying capacity graph of a meerkat population in an African savanna. Meerkats are omnivores and eat a variety of organisms, such as fruit, insects, scorpions and lizards. Predators of the meerkat include hyenas and eagles. What is a possible cause for the sudden change in population of meerkats after year 3?
A. Warmer weather increased the number of insects.
B. The number of eagles was reduced due to disease.
C. A fire reduced the amount of grass and fruit available.
D.A lack of predators increased the lizard population.
A fire reduced the amount of grass and fruit available.
What is carrying capacity in ecology?
In ecology, carrying capacity is measured as the maximum load of an environment. The physical features present in the environment act as limiting factors (e.g. food, water, competition, etc.). Thus, the population limit can be expected to depend on these factors.
What is carrying capacity of an ecosystem?
Populations grow at a rate limited by the availability of the Earth’s resources. A population may grow at a faster rate and follow a J-shaped curve. When the birth rate surpasses the death rate of the species, this results in exponential growth.
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Hollow spaces in the skull above and beside your nose are _____. {free brainliest!!!}
A. alveoli
B. cilia
C. sinuses
D. pleura
Answer:
SinusesExplanation:
SINUSES are hollow spaces in the bones of your head above and below your eyes that are connected to your nose by small openings. Sinuses help regulate the temperature and humidity of inhaled air.
Answer:
C. sinuses
Explanation: The paranasal sinuses are hollow, air-filled spaces located within certain bones of the skull (Figure 16). All of the sinuses communicate with the nasal cavity (paranasal = “next to nasal cavity”) and are lined with nasal mucosa.
Which of the things listed below would help SLOW DOWN global warming? *
Select ALL that are correct. There may be more than one.
Adding MORE carbon to the atmosphere.
Adding LESS carbon to the atmosphere.
Removing carbon that's already in the atmosphere.
Stopping carbon from being taken out of the atmosphere.
Answer:
Adding LESS carbon to the atmosphere.
Removing carbon that's already in the atmosphere.
Explanation:
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Write an acrostic poem using the word "producer". Make sure it is relevant to ecosystems and biodiversity.
Answer:
evolutionary Theory and Biodiversity 1 ... Science education makes possible the development of ... variety of careers related to science, technology, and support for the natural and.
Answer:
Powering up our lives.
Roaring with hospitality
O
D
U
C
E
R
Which of the following BEST describes the relationship between variations and adaptations?
A all variations are adaptations, but not all adaptations come from variations
B variations result from adaptations organisms make to the environment
C. variations are adaptations only if they help organisms survive
D. all adaptations are variations and all variations help organisms survive
many species of animals carry an allele for albinism (lack of pigmentation). Albinos are usually pale or white in color. explain why the allele for albinism is present at la lower frequency than the allele for having pigments. what conditions would be necessary for the albino allele to be more frequent?
Answer:
help i need answer
Explanation:
Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
A. It benefits organisms that that are immobile.
B. It gives offspring the genetic traits to survive in a particular environment.
C. It uses less energy.
D. All of the above.
What do ALL living things need from their environment?
A sunlight
B energy
C nutrients
D all of the above
REDO!! Carbon dioxide is carried by blood to the lungs through _____. [FREE BRAINLIEST]
A. capillaries
B. the heart
C. veins
D. arteries
Answer: A. capillaries
Explanation:
Answer:
A. capillaries
Explanation:
Capillaries are small, thin blood vessels that connect the arteries and the veins. Their thin walls allow oxygen, nutrients, carbon dioxide and waste products to pass to and from the tissue cells.
Please complete he following questions below before Friday, March 19th at 11:59 PM EST.
1. Write down where you have heard of minerals before, and the names of any minerals that play a role in your everyday life.
2. What is the density of cinnabar?
3. You might be familiar with term organic food. How does this meaning of organic differ from the scientific meaning?
4. What type of minerals might a geologist expect to find near the site of an ancient lava flow? Explain.
5. Why do diamonds only form in certain spots in the mantle?
Answer:
Do u still need the answer?
Explanation:
DNA is-
a. Wrapped up to make chromosomes
b. A double helix
c. Instructions for life
d. all of the above
help plz ill give brainliest
Answer:
d. all of the above
Explanation:
Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids. Chromosomes are composed of DNA tightly-wound around histones.
Why doesn’t the female have to keep the egg at a cooler temperature, similar to the sperm?
What happens after warm, moist air rises? Choose ALL correct answers! *
A.the air cools down and begins to sink
B.the air stays warm and moist and moves toward the poles
C.the air sinks but keeps the same temperature and moisture levels
D.the water vapor in the air condenses and falls as precipitation
Answer:
d
Explanation:
Answer:
the answer is clearly D (the last one)
Explanation:
please tell me when you get the right answer:)
The diagram shows a sponge.
What is the function of the structures labeled X?
providing protection from predators
fertilizing eggs
filtering and digesting food
stinging prey
Answer:
fertilizing eggs
Explanation:
Answer:
Fertilizing eggs or b
Explanation:
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From sea level, the biosphere goes up about 19km. What is the thickness of the biosphere in meters?
Answer:
1 km= 1000 meters
9 km= 9000 meters
19 km= 19000 meters
9000
+19000
----------
28000 meters
Explanation:
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Explanation:
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How fast do sound waves travel under normal conditions?
A. 1100 Feet each second
B. 1100 miles per hour
C. 1100 miles each second
D. 110 feet each second
If your answer is accurate and correct, I will give brainliest!
What makes a greenhouse gas different than other gasses in the atmosphere? *
Greenhouse gasses are always man-made.
Greenhouse gasses absorb heat radiating from the Earth's surface.
Greenhouse gasses are radioactive.
Greenhouse gasses have a green color when light shines through them.
Greenhouse gasses are poisonous to most life.
Are the Northern Lights a representation of reflection or refraction? (Neither can be an answer as well)
What are genetics? (short definition)
Answer:
Seriously?
Explanation:
Explain the relationship between the variation in estradiol and progesterone rates in the female body and the events that occur in the uterus during the menstrual cycle
Answer:
The ruptured follicle closes after releasing the egg and forms a corpus luteum, which produces progesterone. During most of this phase, the estrogen level is high. Progesterone and estrogen cause the lining of the uterus to thicken more, to prepare for possible fertilization.
Progesterone and estrogen are necessary to prepare the uterus for menstruation, and their release is triggered by the hypothalamus. Once you reach puberty, the ovaries release a single egg each month (the ovaries typically alternate releasing an egg)—this is called ovulation.
Explanation:
The answer is an explaination itself.
Hope this will help you!!
The diagram below shows a simple version of the carbon cycle... How are the processes shown with yellow arrows different from the processes shown with red arrows? *
The yellow arrows are all caused by human activities.
The yellow arrows are all completely natural processes.
The yellow arrows all add to the greenhouse effect.
The yellow arrows all take carbon out of the atmosphere.
Answer:
b. The yellow arrows are all completely natural processes.
In the given carbon cycle, the yellow arrows are all caused by human activities. The correct option is A.
What is carbon cycle?The carbon cycle is nature's way of recycling carbon atoms, which commute onto from atmosphere into lifeforms on Earth and then again into the environment.
The maximum amount of carbon is stored in rocks and sediments, with the left over in the ocean, atmosphere, and living organisms.
The carbon cycle describes how carbon moves between various 'carbon reservoirs' on Earth.
It is critical for our planet's climate and carbon balance to remain stable. Carbon is the backbone of the Earth, and the carbon cycle regulates it naturally. The Earth would be frozen if it didn't have it.
In the given chart, the decomposition, fossil fuels, etc. all are done through humans, hence the yellow arrows are indicating man made activities.
Thus, the correct option is A.
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