Anne releases a stone from a height of 2 meters. She measures the kinetic energy of the stone at 9.8 joules at the exact point it hits the ground. What is the mass of the stone?
Eₖ = √1/2 mv²
Eₖ/v² = 1/2 m
2Eₖ/v² = m
mgh = 1/2 mv²
gh = 1/2 v²
2gh = v²
v = √2gh
= √2 × 10 N/kg × 2 m
= 6.324 ms⁻¹
m = 9.8/(6424)²
= 9.8/39.993
= 0.245 g
I am not sure if it's correct.
i transposed for m in the first equation then to find the velocity I combined the potential and kinetic energy equation. there was no mass because velocity doesn't depend on the mass
Then I used earth's gravitational field strength (g) 10 N/kg and the 2 m was the height provided in the question
you can try working and see if you get the same
who was the first person in the world
Answer:
Adam, and then the second women god created was Eve read the bible okay?
Explanation:
c) What are the causes of Green House Effect?
woop uh dont worry abt it
Appalachian Mountains were formed 500 to 300 million years ago result of a(n) collision of continents. This is an example of what force? Destrusctive or constructive
PLEASE HELP ( WILL GIVE BRAINLIEST )
P.S If you see my question and see that someone already commented please check to see if it’s a bot first!
Answer:
Explanation:
A: Jerusalem, Kashi Vishwanath Temple, Mount Sinai
B: Famadihana, Water Burial, Tower of Silence (if you want one that we do here then here it is) : Cremation, Burial, Wakes.
C: Eiffel Tower, Colosseum, Sydney Opera House (now if it meant styles here they are) : Baroque, Victorian, Neofuturist.
D : Great wall of china, City hall, Public museum (in case it meant places as in places people live) China, United Kingdom, United States
E: Christianity, Islam, Hinduism. Asia, Africa, North America. Northeast, Southeast, Midwest.
F: Catholic, Protestant and (Eastern) Orthodox. The Catholic Church believes the pope to be infallible in matters of doctrine. Orthodox believers reject the infallibility of the pope.
G: Sunni and Shia. Those who followed the Prophet's closest companion became known as Sunni. Those who followed the Prophet's cousin and son-in-law became known as Shia
H: Hinduism
explain the term global south
When the sea level rises, an ocean may invade a river valley, producing a nearshore body of water of mixed and variable salinity termed a(n)
An atoll estuary serves as the term that used in referring to rising of sea level which do results to invasion of the river valley which produces a nearshore body of water of mixed as well as variable salinity.
In an estuary, there us usually mixing of freshwater river or stream aa well as ocean.This will result to salty ocean mixing with a freshwater river, and brackish water will be formed.
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Why is it important that we learn about the Earth’s atmosphere and climates? explain
Answer:
The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun's dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life. The Earth's atmosphere protects and sustains the planet's inhabitants by providing warmth and absorbing harmful solar rays. In addition to containing the oxygen and carbon dioxide, which living things need to survive, the atmosphere traps the sun's energy and wards off many of the dangers of space.
Which statement about energy is true? A. Energy cannot be created or destroyed. B. Energy is used up when an object moves. C. Energy can be converted from one to another. D. There are six major forms of energy including: thermal, nuclear, mechanical, chemical, electrical, and electromagnetic.
List the criteria's that conventional signs and symbols should fulfill internationally.
Based on geographical and surveying practice, the criteria's that conventional signs and symbols should fulfill internationally include "visibility."
What are Conventional Signs and Symbols?Conventional signs and symbols are signs used to present essential features on a topographical map.
Conventional signs and symbols can represent features like roads, schools, cities, towns, etc.
Some other criteria's that conventional signs and symbols should fulfill internationally include the following:
Easy to read.It should represent certain features.It should be defined in a separate table known as a legend, etc.Hence, in this case, it is concluded that conventional signs and symbols are used based on general geographical and surveying standards.
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Which part of Asia has deserts ? Name the deserts.
Please help me.....
Continental lithosphere is approximately 150 km thick, while old oceanic lithosphere away from mid-ocean ridges is
Answer:
whether it carries oceanic or continental crust: Continental lithosphere is, on average, 150 km thick, although it can be thicker beneath mountain ranges. how far from a mid-oceanic ridge it is. Old oceanic lithosphere is up to 100 km thick, while at the axis of a mid-oceanic ridge, it may be only ten km thick.
How can the effects of establishing a pesticide production plant be minimized ?
Answer:
Plowing, crop rotation, removal of infected plant material, cleaning of greenhouse and tillage equipment, and effective manure management are all cultural practices that are employed to deprive pests of a comfortable habitat or prevent their spread. Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.
Hope this answers your question.
Explanation:
what is the capital of Alabama of usa
Answer:
Montgomery is the capital of State of Alabama in the United States of America.
Explanation:
Montgomery became the official capital of Alabama in 1846 when General Assembly of the State of Alabama passed legislation stating such.
Answer:
Montgomery
Explanation:
What is structural adaptation?
O changes in the way an organism behaves so as to
survive in a given environment
O physical changes in an organism in order to survive
in a given environment
O invisible changes in an organism in order to survive
in a given environment
O changes taught to an organism by external stimuli
in order to survive in a given environment
Which Nation has 40 percent of its nation represented by christians?
Answer:
Lebanon
Explanation:
brainliest please and if I'm wrong don't mark me brainliest :)
Answer:
Lebanon
Explanation: If you have a quiz with choices of (IRAN, SYRIA, ISRAEL, LEBANON). The others are: IRAN/SYRIA (MUSLIM) AND ISRAEL (JUDAISM)
Many more earthquakes occur along the San Andreas Fault in California than in other parts of the United States. Scientists claim that these earthquakes are caused by activity along a transform plate boundary.
Which evidence would best support this claim?
Answer:
Subduction causes new crust to form.
Explanation:
Answer:
subduction causes new crust to form.Scientists believe quakes on the Cascadia subduction zone may have triggered most of the major quakes on the northern San Andreas within the past 3,000 years. The evidence also shows the rupture direction going from north to south in each of these time-correlated events.
Explanation:
How does Clinometer function?
Answer:
A clinometer is a tool that is used to measure the angle of elevation, or angle from the ground, in a right - angled triangle. You can use a clinometer to measure the height of tall things that you can't possibly reach to the top of, flag poles, buildings, trees.1. What is the difference between a service industry and manufacturing?
what is new York's capital
Answer:
Albany is the capital! even though some people think it's nyc itself.m.
Answer:
Albany
Explanation:
What are 2 different factors that led to the decline of the russian empire?
Answer:
Bad Leadership, Famine
Explanation:
HOW WEATHERING EFFECTS HILLS ?
Answer:
Explanation:
Weathering changes things around us gradually over long periods of time. Over millions of years, it wears mountains down to hills. Weathering affects both naturally formed rocks and human-made structures such as buildings and streets
what is rimland theory
Answer:
this is what is it mango or apple
To which Earth system do people belong?
a) biosphere
b) geosphere
c) hydrosphere
d) atmosphere
e) None of the listed responses is correct
Try and pass this test to see if your brain is healthy
Answer:
Okay so after you answer this how do you know if your brain is healthy.
Explanation:
Many cities around the world are built on lava fields. True False
the answer is true based on what I searched
wich countries did control great britian during the colonial period
Answer:
canada,australia,new zealand,india,africa,imperial britain
Answer:
idl
Explanation:
How does the big bang theory came into existence?
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The best-supported theory of our universe's origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient explosive force.
Answer:
Cosmic background radiation still exists from the Big Bang and can be seen with radio telescopes. The big bang theory is the explanation of the red shift observed by Hubble.
Explanation:
It is the theory that the universe began expanding rapidly from a singularity about 14 billion your ago and the universe continues to expand to this day, we can tell the universe is expanding because the further an object is from us the faster it is moving away from us. The universe may have been infinitely large at the Big Bang and it is getting infinitely larger. In the 1920s Edwin Hubble made the observation that the universe had a prevailing red shift. This implied that the present observable universe had a beginning. The Big Bang theory is an attempt to explain the beginning of the universe implied by the evidence of an expanding universe. Logically if the universe is expanding outwards then extrapolating backwards all the universe must have existed in one small space at the beginning. Einstein's theory suggests the existence of singularities where time and space does not exist. The entire universe is a small space would create a singularity because of the massive density of all the matter of the universe being in one place. The theory is that this singularity with its mass exploded creating our present universe. The theory does not explain where or how the singularity came to exist, but does explain the beginning of the universe. The previous theory of a steady state universe was abandoned because of the empirical evidence of an expanding universe that had a beginning. The present theories of an oscillating universe of big bangs and big crush is being seriously questioned by empirically evidence that rate of expansion of the universe is increasing. The evidence of an increasing rate of expansion indicates that the present observable universe will have an ending it will not recycle.
the mass of an object by one half what happens to the gravitational force between the object and second object whose mass stays the same
a. the gravitational force stays the same, as long as the object remains on earth
b. the gravitational force doubles
c. the gravitational force decreases by one half
d. the gravitational force decreases to one fourth
Answer:
part b
Explanation:
The amount of the gravitational force doubles up
Similarity of goods
II. Similarity of languages
III. Non-payment of dues
IV. Strong colonial ties
II.
III.
IV.
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I, II and III only
I, III and IV only
II, III and IV only
I, II and IV only
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B.
C.
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42.
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36. Which of the following settlements is a confluence
town?
A. Abuja
B. Banjul
C. Khartoum
D. London
37. An example of a market-oriented industry is
steel.
vehicle.
cement.
food.
& CMOS
43.
38. Which of the following features distinguishes
heavy industries from light industries?
A. Ownership structure of the firm
B. Amount of waste products generated
C. Complexity of processing techniques
D. Source of raw materials
44.
Answer:
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