True or false. People from only a few civilizations have contributed to Astronomy.

Answers

Answer 1

Answer:

False

Explanation:


Related Questions

In what ways are plasmas similar to gases? What makes plasmas different than gases?

Answers

It takes a very special environment to keep plasmas going. They are different and unique from the other states of matter. Plasma is different from a gas, because it is made up of groups of positively and negatively charged particles. In neon gas, the electrons are all bound to the nucleus.

Answer:

Like gases, the particles in plasmas are constantly moving at high speeds, and do not have a definite shape or volume. Plasma is formed when the kinetic energy of the molecules in a gas gets very large and the temperature gets very high. This causes electrons to be released by the atom, creating ionized particles, which are positive ions and negative electrons.

Explanation:

Sample Response <3.

is -9/6 irrational, rational, and integer, a whole, number or natural?

Answers

Answer:

-9/6 is only rational.

Explanation:

-9/6 = -1.5

not an integer bc decimal

not irrational because it can be represented as a fraction

not a whole or natural number because its negative.

can someone give me the answers to this question ​

Answers

Answer:

Rubbing his hand and ironing is Mechanical Energy being transformed into Thermal Energy.

Throwing a rock vertically in using Kinetic Energy, it then transforms into Gravitational Energy as the rock falls.

Explanation:

First, as Kwane rubbing his and and iron his clothes using the energy to create heat, that is thermal being transformed.

The rock being thrown uses kinetic energy and due to graviational force of the earth, it is being transformed into Potential Gravitational Energy.

Physical Science
convert 5.3 hl to dal

Answers

Answer: 53 dal

Explanation: 5.3x10=53, to get dal you have to multiply by 10 to get 5.3x10=53.

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A 2 kg ball is dropped from the roof of a building 27.5 m tall. How long
does it take to hit the ground?

Answers

Answer:

wow I need time to solve dis

how many meters does it take to make one mile ​

Answers

Answer:

1610 meters

Explanation:

Answer:

1609.344 Meters

Explanation:

There is no explanation

Where does the energy of plasma come from?

Answers

Answer:

El plasma es un estado de la materia que se caracteriza por su alta energía e inestabilidad. La energía del plasma, entrando en contacto con la superficie de materiales sólidos – plásticos o metales – modifica sus propiedades fundamentales, como por ejemplo la tensión superficial.

Explanation:

Plasma – el cuarto estado de la materia

A través de aportación de energía se cambia el estado de la materia: de sólido a líquido y de líquido a gaseoso. Si al gas se aporta energía adicional, éste se ioniza, es decir, que por la mayor energía el gas se convierte en plasma - el así llamado “cuarto estado de la materia”.

Answer: I translated it

Hope to get Brainliest.

Plasma is a state of matter that is characterized by high energy and instability.  The energy of the plasma, coming into contact with the surface of solid materials - plastics or metals - modifies their fundamental properties, such as surface tension.

Explanation:

Plasma - the fourth state of matter

Through the contribution of energy, the state of matter is changed: from solid to liquid and from liquid to gas. If additional energy is supplied to the gas, it is ionized, that is, due to the increased energy the gas is converted into plasma - the so-called “fourth state of matter”.

If the distance between two charged particles is doubled, the force between them changes by a factor of ___. (1 point)
1/2
1/4
2
4

Answers

Answer:

decreases 1/4 of the original value

If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Force between two charge particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.

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The results of a dart game were precise but not accurate. The accepted value of the game was the center of the dartboard. Which correctly describes the results? All of the darts hit the center of the board. Some of the darts hit the center of the board. The darts hit the same general area of the board. The darts hit very different areas of the board.

Answers

Answer:

The darts hit very different areas of the board.

Explanation:

The bullseye is the point at which darts are most accurate. There is no accuracy nor precision if the darts are neither close to the target nor to one another.

What is dart precision?

The degree of similarity between several measurements is known as precision.

Even if the measurements are not exactly the right value, they are very reproducible.

Throwing darts at a dartboard can be used to demonstrate accuracy and precision.

There is precision but not accuracy if every dart lands distant from the bulls-eye but extremely closely spaced apart.

In contrast to a dart that lands far from the bulls-eye, which shows poor accuracy, a dart that hits the bulls-eye is very accurate.

Therefore, The board was struck by the darts in a variety of ways.

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A city bus travels six blocks east and eight blocks north east wok is 100 m long is a bus travels as distance and 15 minutes what is the average speed on the bus

Answers

Answer:

the average speed on the bus =  1.55 m/s

Explanation:

From the information we are being provided with ;

a city block travels 6 blocks due east

and 8 blocks due north

the length of the individual blocks = 100m

As such their respective distance will be

distance (d) traveled due east direction by bus = 6 × 100 = 600 m

distance (d) traveled towards the north direction by bus = 8 × 100 = 800 m

The total distance covered  = (600+ 800)m

= 1400 m

However, it requires 15 minutes to travel this distance by bus.

Thus,  

the average speed = distance/ time

the average speed on the bus = 1400 m / (15 × 60) s

the average speed on the bus =  1400 m / 900 s

the average speed on the bus =  1.55 m/s

What force is required to accelerate a 6 kg bowling ball at 2 m/s/s forward?

Answers

Answer:

12N

Explanation:

Force = mass * acceleration.

6 * 2 = 12

Taking into account the Newton's second law, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.

In first place, acceleration in a body occurs when a force acts on a body. There are two factors that influence the acceleration of an object: the net force acting on it and the mass of the body.

Newton's second law states that this force will change the speed of an object because the speed and / or direction will change. These changes in velocity are called acceleration.

So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object.

Mathematically, Newton's second law is expressed as:

F= m×a

where:

F = Force [N] m = Mass [kg] a = Acceleration [m/s²]

In this case, you know:

F= ? m= 6 kg a= 2 m/s²

Replacing:

F= 6 kg× 2 m/s²

Solving:

F= 12 N

Finally, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.

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Cuts are ________, meaning an injury to the skin and the soft tissue underneath it.
A. contusions
B. lacerations
C. abrasions
D. bruises

Answers

Answer:

lacerations

Explanation:

Answer:

B. lacerations

Explanation:

A P E X!

Fill in the blank. Bones fitted together in the shape of a give the human body structure.

Answers

Answer:

skeletal system

Explanation:

hope its the right answer:))

Answer:

top

Explanation:

Human activities can have positive and negative effects on the environment Humans can benefit natural areas by CA throwing waste products in these areas. B. removing all the vegetation from these areas. c. polluting the areas by burning fossil fuels. D. preserving the natural resources that they provide​

Answers

Answer:

D

Explanation:

Clearly you can't help the environment by throwing waste in the area, polluting it, or burning it all up, so D would be our only option.

Have a good day :)

a 50-kg object moving at 12 m / s has a momentum of 600 kg m / s what is the mass of an object moving at 4 m/s has the same momentum

Answers

Explanation:

p=mv

600kgms-1=m × 4ms-1

m=600kgms-1/4ms-1

m=150kg

The mass of the object which has momentum of 600kgm/s with the velocity of 4m/s is 150kg.

What is Momentum?

Momentum is the product of the mass and velocity of the object. Momentum is the quantity of motion which is made up of the amount of matter moved and the velocity at which it moves. Momentum is a vector quantity because it has both the magnitude and direction. The SI unit of momentum is kg.m/s (kilogram meter per second).

p = m × v

p = momentum of the object,

m = mass of the object,

v = velocity of the object

600kgm/s = m × 4m/s

m = 600/ 4

m = 150kg

Therefore, the mass of the object will be 150kg.

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A car is traveling at 100 km/h. How many minutes will it take to cover a distance of 750 km?

Answers

Answer:

7.5 minutes (you mean hours)

t = 7.5 min (if it was actually not hours than put minutes just letting u know.)

Explanation:

The first thing you have to do is know the equation; it is t = d/s, which is time = distance divided by speed. Know fill in the equation, now it will be t = 750 km/100 km/ hr ( in this min). If you divide it, then the answer will be t = 7.5 min (which it has to be hours instead of min because hours makes more sense than minutes.)

The car will take 7.5 hours to cover a distance of 750km.

What are Speed and velocity?

Speed ​​is defined as the rate over time at which an object is moving along a path, while velocity is defined as the rate and direction of motion of an object. Speed is a scalar quantity as it has only magnitude, no direction but Velocity is a vector quantity as it has both magnitude as well as direction.

Speed can be expressed as:

Speed= Distance travelled/ Time taken

Velocity can be expressed as:

Velocity= Displacement travelled/ Time taken

Both the quantities are expressed as meter per second (m/s).

If the two values are given , we can calculate the another value like in the above given information, speed of the car = 100km/hr and distance travelled by the car= 750 km.

So, Time taken= 750/100 = 7.5 hours

Thus, the car will take 7.5 hours to cover a distance of 750km.

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Which event causes the least amount of time to go by on the game clock?

Question 3 options:

A three-point shot


A bounce pass


A free throw


An alley-oop

Answers

answer : free throw does

The event that causes the least amount of time to go by on the game clock is a free throw.

In basketball, a free throw is an unhindered shot made from behind a set line.

This throw (free throw) is produced because of a foul caused by an opponent.

The obtention of free throws can be a strategy to win a game.

In conclusion, the event that causes the least amount of time to go by on the game clock is a free throw.

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In a study, the data you collect is Habits on a Always/Sometimes/Never scale.What is the level of measurement?

Answers

Answer:

Ordinal

Explanation:

There are four levels of measurement which include the nominal, ordinal, interval, and ratio. The data collected above is ordinal data as it qualifies the data and still indicates the ordering of the data. It gives the observer an idea of the range of data collected or its rating although mathematical calculations may not be done with it.

The other forms of data include the nominal which simply qualifies the data, the interval which qualifies the data but which the differences between the data can be obtained, and of course the data has no starting point. The ratio scale which is similar to the interval scale but which the ratios between the data obtained can be compared.

what is acceleration of a 12 kg cart if a net force of 144 N is applied on it?​

Answers

Answer:

The correct answer is I just did the quiz

Force,F=144N

Mass,m=12Kg

Force=Mass*Acceleration

144=12*a

12a=144

a=12

What is the velocity of the object moving from 3 - 7 seconds?
O m/s
-6 m/s
6 m/s

Answers

That's the flat-top marked ' B '.

It's 6 m/s.

I need help finding the average acceleration fo tyler and bree

Answers

fo really bro learn how to spell

your uncle danny just moved into a new apartment and wants to make his famous spaghetti sauce for his new neighbors

Answers

Answer:

he invs them

Explanation:

its common sense

Answer:

He invs them.

Explanation:

Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false

Answers

Answer:

The answer is True

Love, which can’t be observed or measured directly, is an example of a psychological construct.

Explanation:

On edge 2020

What is the phase of water when its temperature is 150 °C?
A. Solid
B. Liquid
C. Gas
D. None of the above.

Answers

Answer:gas

Explanation:

The phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.

What are the phases of substance?

Phase is a term used in thermodynamics to describe an amount of matter that is chemically and physically uniform or homogeneous, can be mechanically separated from a nonhomogeneous mixture, and may consist of a single material or a combination of substances.

Although crystalline, colloid, glassy, amorphous, and plasma phases are thought to exist, the three basic phases of matter are solid, liquid, and gas (vapor). A phase change is defined as the transformation of a phase from one form to another.

As the boiling point of water is 100° C, the phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.

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how does bilateral symmerty extend to our senses?​

Answers

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

if a object falls from 5 meters how long did it take for it to reach the ground explain(gravity= -10)

Answers

Idkgfjfjfjriurugucufududu

Explanation:

[tex]time \: period = \sqrt{ \frac{2h}{g} } = \sqrt{ \frac{10}{10} } = 1sec[/tex]

Lucy took 3 hours to cover 2/3 of a journey. She covered the
remaining 60 miles in 2 hours. What was the average speed
for the whole journey?
mph

Answers

Deleted this answer, sorry for any inconveniences that it may have caused.

Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?

Answers

Answer:

Speed greater than 4 m/s

Explanation:

Given that Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?

The distance = 12 m

Time = 3s

Speed = distance/time

Speed = 12/3

Speed = 4 m/s

Ms Kasper must run at speed more than 4m/s for her to save the cat.

(USE THE GRAPH) Vectors B and C and are shown in the graph. Vector B is multiplied by the scalar 92. What angle does the new vector make with the x-axis?​

Answers

Answer:

The angle the new vector makes with the x-axis is 33°

Explanation:

By multiplying a vector with a scalar, we multiply the similar components of the two quantities which is the magnitude of the scalar quantity and the magnitude of the vector with the new vector formed will have a magnitude equal to the product of the two magnitudes and the same direction of the original vector as follows;

The magnitude of the vector B = 5.6

The magnitude of the scalar = 92

The product of the two magnitudes = 5.6 × 92 = 515.2

The magnitude of the new vector = 515.2

The direction of the new vector = 33° South of West

Therefore, the angle the new vector makes with the x-axis = 33°.

which of the following best describes inertia?

a) Inertia is the same as mass
b) Inertia is a result of net force
c) Inertia is the ability of an object to change its motion
d) Inertia is the tendency of objects to resist changes in its motion​

Answers

Answer : D
Explanation: Intertia is the resistance of any physical object to change its velocity

Answer:

d) inertia is the tendency of object's to resist changes in its motion

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