A student drops a tennis ball from the top of a building as shown in the picture air resistance is negligible. Explain how the student can determine the height of the building if the kinetic Energy of the tennis ball is known when it hits the ground. And your explanation use the terms kinetic energy, gravitational potential energy, acceleration due to gravity mass and height
Answers
We can use potential energy to solve. Remember, your height and your gravity need to have the same sign, as they are moving in the same direction (downward). Either make them both negative, or use an absolute value.
Using conservation of energy, we know that PEtop=KEbottom. This tells us that the potential energy at the top of the hill is all converted to kinetic energy at the bottom of the hill. We can substitute the equations for potential energy and kinetic energy.
mgh=12mv2
The masses cancel out.
gh=12v2
Plug in the values, and solve for the velocity.
Related Questions
Generally, the greatest lake effect snow fall will be on the ____ shore of the Great Lakes. Select one: a. northern b. southern c. eastern d. western
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Answer:
eastern
Explanation:
Which event most likely occurs at point K? cooling cementing melting weathering.
Answers
The event is most likely to happen when K melts. So, option (c) or (iii) is the correct answer.
Why does it melt in point K?Melting refers to the transformation of a solid into a liquid when heat is applied. Melting occurs when solid rock in crystalline form is exposed to severe heat, pressure, or both, causing it to change phase into a liquid known as magma.
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Answer:
c
Explanation:
when occurring in the atlantic ocean they are known as hurricanes. what are they known as when occurring in the western pacific?
Answers
How was the climate of India different when it was part of Pangaea?
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Answer:
The climate of India was different than now when it was part of Pangea because "Pangea in the Late Carboniferous had widespread peat formation in what is now central and eastern North America and Europe and relatively dry conditions on the Colorado Plateau. equatorial region of Pangea was dry, and indicators of aridity and rainfall seasonality became more widespread." So this is telling the difference between how India's weather was back then and how it is now.
Hope this helps
China has a population of approximately 1,382,323,332 people. The united states has a population of about 324,118,787 people
Answers
China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8. Scientific notation is scientific form or a standard form in the UK.
What do you mean by Scientific notation?Scientific notation is a way of displaying numbers that are too big or too small to be easily written in decimal form.
As per the information,
China's population is 1,382,323,332 people
United States is 324,118,787
Using scientific notation,
China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8.
Thus, using scientific notation, China's population is 1.382 * 10^9 and United State's population is 3.241 * 10^8.
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Austin run 6 miles in 15 minutes at the same rate how many miles would he run in 35 minutes
Answers
Answer:
14 miles
Explanation:
6 miles in 15 is equivalent to 24 mph. if you divide 24 by 60 you get 0.4, you then multiply that by 35 and you get 14
The four technique Homer use to show direction on sea
Answers
Dude I can't help. There is no information about this.
Answer:
None
Explanation:
Homer was a poet. He was not an experienced sailor.
Why arent countries where gold mines located richest
Answers
Answer:
Corruption
Explanation:
An abundance of natural resources don't always equate to wealth. Japan for example has few natural resources but is high in human capital.
Countries with gold mines might not be the richest possibly because of corruption, exploitation, and conflict.
This video might be of some help to you: "Why Some Countries Are Poor and Others Rich"
Corruption, exploitation, and conflict, are the reason of countries with gold mining may not be the richest. Natural resources in abundance may not automatically imply affluence.
What is gold mining?The extraction of gold resources via mining is known as gold mining. Historically, manual separation procedures such as gold panning were employed to extract gold from deposits.
complex extraction procedures such as pit mining and gold cyanidation have emerged. Large firms carried out the majority of mining in the twentieth and twenty-first centuries.
Thus, Corruption, exploitation, and conflict are the reasons.
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The italian alps have one of the world’s largest collections of what?.
Answers
Answer:
Cows
Petroglyphs
Rivers
Trees
Mountains?
Explanation:
In Camonica valley, located in Italy’s eastern Alps, visitors can find one of the world’s largest collections of prehistoric petroglyphs. The site is called Valcamonica and stretches for 56 miles across the valley. More than 2,500 rocks are carved with up to 300,000 symbols, animals, scenes, and drawings. Valcamonica was added to UNESCO’s World Heritage list in 1979.
Science notebook activity in this exploration, you will identify the prevailing winds and ocean currents that exist on earth, as well as the directions they travel. use the wind and ocean map to answer the questions in your science notebook. procedure using a red-colored pencil, trace the patterns of the prevailing winds on the map. be sure to include the following prevailing winds: prevailing westerlies trade winds northern subtropical gyre southern subtropical gyre doldrums draw arrows on each pattern to show which direction the wind blows. label the various prevailing winds with their appropriate names. sketch the major ocean currents onto the map using a blue-colored pencil. be sure to include the following ocean currents: japan current northern equatorial drift southern equatorial drift gulf stream west wind drift brazil current draw arrows on each pattern to show which direction the surface current flows. label each ocean current pattern with its correct name. in the box provided, create a legend, being sure to key the different colored lines. finally, label your map with an appropriate title. answer the following questions. questions compare the direction of the currents in the north pacific ocean with those of the south pacific ocean. how are they alike and similar? explain the reason for the similarities and differences. what relationship between wind and ocean currents do you notice after observing your map?
Answers
The Earth is known to have five prevailing wind zones. They are:
Polar easterlies is known to flow from polar high-pressure belt in the direction of the temperate low-pressure belts and it is said to blow from the east.Westerlies moves from from the west toward the east.Horse latitudes, found in the north and south and moves or flow toward the prevailing westerlies or equator.Trade winds flows mainly from east to west that is north and south of the equator.The doldrums starts at low pressure or weak pressure gradients, and moves in the direction of the trade wind of North and south.Some of the examples of ocean Currents in the world are:
North Equatorial Current is known to be a westward wind-driven current Kuroshio Current is known as north-flowing and also a warm ocean current .North Pacific Current is known to flow from west-to-east .Alaskan Current has its current flowing counterclockwise.Counter Equatorial Current is known as an eastward flowing and also a wind-driven current South Equatorial Current is known to flow from east-to-west. etc.What is the link between wind and ocean currents?The winds is known to be a weather condition that carries surface water with them which therefore forms currents.
Note that as these currents are said to flow westward, the Coriolis effect which is a force that emanates from the rotation of the Earth is said to lower their intensity which can make the currents to bend to the right, facing the north.
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15 POINTS!!! HELP!!! DUE TOMORROW!!!
Through what processes has tongariro transformed over time???
Answers
How the structure of a country population changes between stage 2 and 4 in the Dtm
Answers
Answer:
In stage 2 they diverge , as the death rate falls relative to the birth rate. In stage 3 they converge again, as the birth rate falls relative to the death rate. Finally in stage 4 the death and birth rates are balanced again but at a much lower level.
Is this statement true or false? the equator runs through lake victoria. true false
Answers
Answer:
True, the equator does pass through Lake Victoria
Answer:
True
explain
i took the test
important of litosphere to man
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[tex] \huge\bf\blue{Answer \pink{✓}}[/tex]
Lithosphere provides us forests and grasslands for grazing land for agriculture and human settlements and also rich source of minerals. The lithosphere contains different types of rocks such as the igneous, sedimentary and metamorphic rocks, it helps to provide the necessary nutrients required to plants.
_______________Which process results in a decrease in relative humidity?.
Answers
Answer:
The answer would be warming in the air and if the temperature rises.
Explanation:
Hope This Helps!
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One sentence per question get all and I’ll give you brainlyest
Answers
Answer:
K
Explanation:
Malala is the youngest person ever to win the Nobel Peace Prize and has become well known in the international community for her diary about life under Taliban rule.
As a young girl, Malala Yousafzai defied the Taliban in Pakistan and demanded that girls be allowed to receive an education.
Malala travelled to the United Kingdom for further treatment, approved by both her doctors and family after she was shot in the head.
Standing up for what I believe in.
Not cowering in the shadows and making my voice heard.
Select the correct answer. Which two countries contain over one-third of all people on the planet? a. France and albania b. China and india c. United states and canada d. New york and hong kong
Answers
What geographic feature in north Africa served as a barrier separating it from the rest of the continent
Answers
Answer:
The Sahara desert
Explanation:
It extends across all of North Africa and is a natural barrier between North Africa and the rest of the continent. Hope this helps.
Answer:
The Sahara desert
Explanation:
Its geography makes it one of the most harshest places to live and survive.
Tom draws a triangle. He labels the angles A, B, and C and labels the sides a opposite LA),
b (opposite LB), and c (opposite LC).
Part A
Tom assigns a measure of 91° to LA. He assigns a length of 3 cm to a, 4 cm to b, and 5 cm to c.
Could this be a real triangle? Explain why or why not
Answers
Answer:
Yes
Explanation:
5 + 7 > 10, 5 + 10 > 7, and 7 + 10 > 5
The rocks crystal depends on how it cools
Answers
Answer:
The cooling rate or the molten rock or magma
Explanation:
thats the answer
Explain Solar Energy.
Answers
Answer:
Solar energy is what you get from the sun's radiation and then use that energy produce heat or generate electricity.
Explanation:
Solar energy is defined as the transformation of energy that is present in the sun and is one of the renewable energies. Once the sunlight passes through the earth’s atmosphere, most of it is in the form of visible light and infrared radiation. Plants use it to convert into sugar and starches and this process of conversion is known as photosynthesis. Solar cell panels are used to convert this energy into electricity.
Advantages of solar energy are:1. Clean: It is considered to the cleanest form of energy as there is no emission of carbon dioxide like in case of fossil fuels which is one of the causes of global warming.
2. Renewable: There is an ample amount of energy available on earth as long as the sun exists.
3. Reliable: The energy can be stored in the batteries and so there is no question of unreliability.
4. Free energy because it can be trapped easily.
Disadvantages of solar energy:1. The production is low during winters and on cloudy days.
2. Installation and the initial cost of the materials are expensive.
3. Space consumption is more.
_______________________________________How many seismometers are needed to determine the location of an epicenter of an earthquake?
Answers
Answer:
Explanation:
Three seismographs
Three seismographs are needed. A circle is drawn from each of the three different seismograph locations, where the radius of each circle is equal to the distance from that station to the epicenter. The spot where those three circles intersect is the epicenter (Figure 13.12).
Rip currents are dreaded by surf swimmers everywhere. The standard recommendation for swimmers is if you get caught in a rip current, swim parallel to the shore. Why?.
Answers
Based on the sources provided, compare how leaders are selected within two different political systems using examples of specific countries
Answers
Answer:
American presidents.-Democratic elections.
Russian presidents-Communists- Forceful votes, and destruction of strong competition.
Explanation:
What atmospheric layer is the home of weather, has the greatest density of gas molecules, and has a decrease in temperature with height?.
Answers
Answer:
The Troposphere
Hope This Helps!
Answer:
Explanation:
The lowest portion of the atmosphere is the troposphere, a layer where temperature generally decreases with height. This layer contains most of Earth's clouds and is the location where weather primarily occurs.
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Find the two states in the east that share an almost identical shape, then find the two states in
the west that share an almost identical shape (Hint: All four are not the same shape. The two in the east closely
match each other while the two in the west closely match each other).
Fast
Answers
Answer:
For West: Colorado, Wyoming
For East: Tennessee, North Carolina
The two states in the east that share an almost identical shape are Colorado, Wyoming.
The two states in the west that share an almost identical shape are Tennessee, North Carolina.
What is a State?A state is defined as a territory which has its own government within a country.
The identical eastern states are Colorado, Wyoming while the identical eastern states are Tennessee, North Carolina.
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name one law that deals witht eh driving age
Answers
Answer: A Permit is required for one year if under 18 years of age. 16 year olds - No driving from 11 p.m. to 6 a.m., driving for one year unless with 21 year or older licensed driver or driving to and from work.
Explanation: Hope it helps:)
How do economic indicators for different countries show differing levels of development? Give an example.
Answers
Answer:
Economic growth measures the annual increase in GDP, GNP, GDP per capita, or GNP per capita. Inequality of wealth is the gap in income between a country's richest and poorest people.Explanation:
Knowing which direction is east, west, south or north is__________
Latitude
Orientation
Relative Location
Longitude
Answers
Step-by-Step explanation:
Because it runs north south east and west
Knowing which direction is east, west, south or north is Orientation. It refers to the act or process of determining one's position or direction relative to a particular reference point. Thus option (B) is correct.
What is Orientation?Orientation refers to the act or process of determining one's position or direction relative to a particular reference point, usually with regards to cardinal directions . Orientation can also refer to the process of becoming familiar with a new environment, situation, or set of circumstances.
It involves understanding and aligning oneself with the spatial relationship of objects or locations in relation to a fixed point or reference, such as a compass, map, or landmark.
Orientation is knowing which direction is east, west, south or north. Therefore, option (B) is correct.
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The galactic city model was developed in response to the growth of suburbs and the need for a more complex model than the sector and concentric zone models. Which of the following is a strength of the galactic city model?.
Answers
The galactic city model was developed due to the growth of the suburbs, a strength that it has is the fact that It depicts exurban nodes.
What is the galactic city model?This city model is what is also called the peripheral city model. The model was developed and modeled based on cities such as Detroit and Michigan.
It has an inner city which contains suburban residences and businesses around. The areas are in order to avoid traffic jam.
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