Are the phases of the moon the same everywhere on earth
Are the phases of the moon the same everywhere on earth
The meteorites or other objects entering from the earth atmosphere from the solar system. Some of these small sized objects are subjected to ablation in the earth atmosphere. They get destroyed in the atmosphere. But objects which are larger in size they remain unaffected and hit the surface of earth with explosion. These objects appear as shooting stars.
Question 3(Multiple Choice Worth 1 points) [FW.02]The pictures below show four Earth features. image 1 is a sinkhole, image 2 is a cave, image 3 is a geyser, and image 4 is a hotspring Which of these features are formed when hot groundwater is forced out through cracks in the Earth’s surface? 1 and 2 1 and 4 2 and 3 3 and 4
What is the shortest route around the earth A) straight line across a map B) great circle route C) flying diagonally to longitudes D) winkel tripel route
Force of gravity on an object is the weight of the object and is given by mass times accerelation due to gravity. The accerelation due to gravity is the accerelation of an object in free fall and is given by 9.8m/s^2. Given that the force of gravity acting on a child’s mass on earth is 490 newtns, i.e. F = mg which means that 490 newtons = 9.8 times mass. Therefore, mass of the child is 490 / 9.8 = 50 kg.
The western part of South America is a region that is geologically very active. This is due to the boundaries between the South American tectonic plate with the Nazca tectonic plate, and also with the Pacific tectonic plate. Since both, the Nazca and the Pacific plates are oceanic plates, they are heavier, and they subduct below the lighter plate of South America, thus enabling the pressure and temperature from the mantle to come out towards the surface on this boundary lines. This creates lots of earthquakes, as well as volcanic activity.
it is not:
A) because Darwin thought the world was much older than was previously thought
C) because Darwin found that many had similar charecteristics
D) NOT EVERY ORGANISM IS IN THE SAME PLACE, CLIMATE, etc
hope this helps 😀
Hinduism and Buddhism agree that….. a person’s life on Earth prepares him or her for life in heaven. a person’s purpose in life is to strive for an end to rebirth. a person’s life should be governed by the rules of his or her caste. a person’s life on Earth is filled with great suffering.
I can blame the darkness on my own parents. Rangi, my father, and Papa, my mother, loved each other so much that they lived in a perpetual embrace. The sky was pressed against the Earth, and there was no space for anything, not even light. When my brothers and I were created, we were trapped between our parents. My brothers loved our parents, but the embrace was so tight that they felt constricted and unhappy in the darkness. What does the “perpetual embrace” of Rangi and Papa symbolize?
Which clause is an independent clause A. Because the Earth is always rotating B.The winter in Norway is long and harsh C.While the horse chewed on some hay D.Since summertime can be equally difficult
The movements of these plates cause earthquakes, as well as create volcanoes and form mountains.
There are three types of known plate tectonic boundaries. These are 1) convergent boundary (when two plates come together), 2) divergent boundary (when two plates move away from each other), and 3) transform plate boundary (when two plates slides past each other).
Read the summary of “The Beginnings of the Maasai.” In “The Beginnings of the Maasai,” the daughter of the Maasai explains the relationship between the Maasai and their sky god Enkai. She explains how a volcanic eruption sent Enkai and the cattle into the sky. In order to save the cattle, Enkai created a giant tree that allowed them to walk back to earth. Then, Enkai entrusted Neiterkob, the narrator’s father, and his tribe to care for the cattle. As a result, the cattle are sacred to the Maasai, and the Maasai maintain a close connection with Enkai. Is this an effective summary of the story? Yes, because it includes key ideas from the beginning, middle, and end, and it explains the conflict and the resolution. Yes, because it focuses on the details from the beginning, the obstacles from the middle, and the resolution from the end. No, because it is uses too many specific names from the beginning, middle, and end, and it has a vague resolution. No, because it leaves out details from the beginning, the obstacles from the middle, and the resolution from the end.
A projectile is able to orbit the Earth at what speed?
If greenhouse gases in the atmosphere act like a blanket around the Earth, how is this “blanket” being changed by human activities?
From what is known about spring tides and neap tides, you can conclude that a. the sun’s gravity exerts the most power when the moon is on the opposite side of the Earth from the sun. b. the height of high tides varies with the phases of the moon. c. spring tides and neap tides affect the phases of the moon. d. the moon revolves around the Earth every 14 days.
v = 2*pi*R/T,
you have R in m and T is days, which multiplied by 86,400 s/day gives T in seconds.
Then v = 2*pi*3.84*10^8/(27.3*86,400) = 1,022.9 m/s ~ 1 km/s (about 3 times the speed of sound 🙂
For the Earth around the Sun, it would be v = 2*pi*149.5*10^9/(365*86,400)~ 29.8 km/s!
I know it’s not in the problem, but it’s interesting to know how fast the Earth moves around the Sun! And yet we do not feel it (that’s one of the reasons some ancient people thought crazy the Earth not being at the center, there would be such strong winds!)
4. A comet’s nucleus is the frozen portion of a comet. The conet nucleus is the solid center of the head of a comet that is also called ”dirty snowball” or an ”icy dirtball” among astronomists. It consists of rock, dust, and frozen gases and when they are heated by the Sun they form a coma (which is an atmosphere that surrounds nucleus) by sublimating of the gases.
5. Particles ejected from a comet can cause a meteor shower on Earth. A meteor shower is a celestial phenomenon during which we can see how meteors radiate. The meteors which we can observe are formed by meteoroids that enter Earth’s atmosphere at extremely high speeds and they usually move in parallel directions. Some of the meteors are too small and often don’t even reach the surface of Earth as they disintegrate during the entering process.
6. The Kuiper Belt extends from about beyond the orbit of neptune to about twice the distance of neptune from the sun. It is the circumstellar disc that uccurs in the Solar System beyond the already known planets. Its formreminds of asteroid belt, but it is far larger, to be more exact in 20 times. I
a) The time the police officer required to reach the motorist was 15 s.
b) The speed of the officer at the moment she overtakes the motorist is 30 m/s
c) The total distance traveled by the officer was 225 m.
The equations for the position and velocity of an object moving in a straight line are as follows:
x = x0 + v0 · t + 1/2 · a · t²
v = v0 + a · t
x = position at time t
x0 = initial position
v0 = initial velocity
t = time
a = acceleration
v = velocity at time t
a)When the officer reaches the motorist, the position of the motorist is the same as the position of the officer:
x motorist = x officer
Using the equation for the position:
x motirist = x0 + v · t (since a = 0).
x officer = x0 + v0 · t + 1/2 · a · t²
Let´s place our frame of reference at the point where the officer starts following the motorist so that x0 = 0 for both:
x motorist = x officer
x0 + v · t = x0 + v0 · t + 1/2 · a · t² (the officer starts form rest, then, v0 = 0)
v · t = 1/2 · a · t²
Solving for t:
2 v/a = t
t = 2 · 15.0 m/s/ 2.00 m/s² = 15 s
The time the police officer required to reach the motorist was 15 s.
b) Now, we can calculate the speed of the officer using the time calculated in a) and the equation for velocity:
v = v0 + a · t
v = 0 m/s + 2.00 m/s² · 15 s
v = 30 m/s
The speed of the officer at the moment she overtakes the motorist is 30 m/s
c) Using the equation for the position, we can find the traveled distance in 15 s:
x = x0 + v0 · t + 1/2 · a · t²
x = 1/2 · 2.00 m/s² · (15s)² = 225 m
1) Perpedicular lines form a 90° angle between them.
2) The product of the slopes of two any perpendicular lines is – 1.
So, from that basic knowledge you can analyze each option:
a.Lines s and t have slopes that are opposite reciprocals.
TRUE. Tha comes the number 2 basic condition for the perpendicular lines.
slope_1 * slope_2 = – 1 => slope_1 = – 1 / slope_2, which is what opposite reciprocals means.
b.Lines s and t have the same slope.
FALSE. We have already stated the the slopes are opposite reciprocals.
c.The product of the slopes of s and t is equal to -1
TRUE: that is one of the basic statements that you need to know and handle.
d.The lines have the same steepness.
FALSE: the slope is a measure of steepness, so they have different steepness.
e.The lines have different y intercepts.
FALSE: the y intercepts may be equal or different. For example y = x + 2 and y = -x + 2 are perpendicular and both have the same y intercept, 2.
f.The lines never intersect.
FALSE: perpendicular lines always intersept (in a 90° angle).
g.The intersection of s and t forms right angle.
TRUE: right angle = 90°.
h.If the slope of s is 6, the slope of t is -6
FALSE. – 6 is not the opposite reciprocal of 6. The opposite reciprocal of 6 is – 1/6.
So, the right choices are a, c and g.
The answer is: “air mass” .
“An air mass is a large parcel of the atmosphere, sometimes subcontinental in size, that may move over earth’s surface as a distinct, relatively homogenous entity.”
1) Water has very high specific heat.
2) It expands when it freezes
3) ability to dissolve in ionic substances
4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.
1) Water molecules due to their high specific heat , undergo relatively less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.
2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.
3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance can be dissolved in polar solvents only.
4) It is due to property of surface tension. Property of surface tension results due to molecules of water near the surface experiencing a net downward force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.
Henri Rousseau’s Portrait of a Woman
Magical Realism finds precedent in eighteenth-century Gothic novels, but also connects with sixteenth-century Baroque or Surrealism, almost contemporary in the early twentieth century.
Among the most striking features of this movement, we find the blend of realism with pure unreality that is observed as normal, with the integration of magical elements without seeming extraordinary.
These works do not explain the supernatural elements and are narrated as something natural, with characters unaware of their transcendent dimension. In addition, death has paramount value in the relativistic discourse of truth, with a metaphysical focus on space and time and an intimate atmosphere that blends characters with myths, legends, and natural cultures.
Henri Rousseau’s Portrait of a Woman is considered one of the first magical realistic stories.
The integumentary system covers the surface of the body is true about the integumentry system.
The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.
The integumentary system is the largest organ in the body that covers the surface of the body.
Thus, The integumentary system covers the surface of the body is the true statement about the integumentry system.
25) Answer is: less metallic and more nonmetallic.
Electronegativity increases from left to right across a period, atoms have tendency to attract electrons.
Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.
26) Answer is: radioisotope.
Radioisotope has an unstable atomic nucleus and emit energy and particles when it changes to a more stable form.
Francium (Fr) is element with atomic number 87 (87 protons and 87 electrons).
27) Answer is: boils.
Boiling is the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
The Celsius scale was based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atm pressure.
28) Answer is: endothermic.
There are two types of reaction:
1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).
2) exothermic reaction (chemical reaction that releases more energy than it absorbs).
For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.
29) Answer is: kinetic.
The average kinetic energy of molecules depends on the temperature.
As temperature increases, molecules gain more energy from surrounding and move faster.
Kinetic energy (standard unit is the joule J) depends on speed of the molecule.
Solid gains kinetic energy to become a liquid and then becomes a gas.
30) Answer is: alpha particles.
This was famous Rutherford’s Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles.
Rutherford observed the deflection of alpha particles on the photographic film.
Alpha particles are helium atom particles, consist of two protons and two neutrons.
According to Rutherford model of the atom: atoms have their charge concentrated in a very small nucleus.
31) Answer is: highest.
For example, calcium oxide.
Calcium oxide (CaO) has ionic bonds between calcium cations (Ca²⁺) and oxygen anions (O²⁻).
Because it has strong ionic bonds, it has high melting point (around 2600°C).
Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).
32) Answer is: a scientific model.
A scientific model is a representation of an idea, an object, a process or a system that is used to describe and explain phenomena that cannot be experienced directly.
33) Answer is: the superscript is mass number and the subscript is atomic number.
Atomic number(Z) is the number of protons, which is characteristic of a chemical element..
Mass number (A) is the total number of protons and neutrons in a nucleus.
Correct answer is D. Comma or Period Inside Rule
A. Question mark or exclamation point inside: those are not really necessary.
B. Colon or semicolon: not, a semicolon would divide the whole sentence and it would be shorten; a colon would work but after requested, when there is already a comma.
C. Question mark or Exclamation Point Outside Rule: would not work, becase it is an very polite and affirmative sentence.
D: A comma or period inside rule: actually, just a comma would work. Please, Cooper’s dad requested, go… Cooper’s dad requested must be in between commas as it is a vocative.
Hope this helps