A soccer ball is kicked horizontally. What is its average speed if its displacement is 55.0 m after 12.00 s? What formula was used to solve this problem?

Answers

Answer 1

4.58 m/s

Speed = displacement / time


Related Questions

what are groups of periodic table

Answers

Explanation:

there are 8 groups of the periodic table

group number one is of the alkali metals

group number two use of the alkaline Earth metals

group number three is known as group (III)

group number for is known as group IV

group number V is known as group V group number six is known as group VI

group number seven is known as halogens

and group number eight is of the noble gases

the periodic table does not have 18 groups as the elements between group III and group IV all known as the transition metals.

Three balls are used to model the Sun-Earth-Moon system. Which statement describes a benefit of this model?

Answers

Options are not given in the question, so the complete question is as follows:

Three balls are used to model the Sun-Earth-Moon system. Which statement

describes the benefit of this model?

A. The model shows only how eclipses happen.

B. It shows information about a system too large to be studied easily.

C. It shows information about a system too fast to be studied  directly

D. The model can be used for the entire solar system.

Answer:

B. It shows information about a system too large to be studied easily.

Explanation:

The use of balls in the model makes it easy to understand the large solar system.

The solar system is comprised of the sun, moon, planets, and other celestial bodies. The model using three balls makes it easy to understand a large system. Using these balls many things about the solar system can be learned such as the position of the Sun-Earth-Moon, the phenomenon of rotation and revolution, and eclipses.

So, the given models show that a large solar system can be studied easily.

Hence, the correct option is "B".

Answer:

B. It shows information about a system too large to be studied easily.

Explanation:

Distance v. Time
What is the velocity at 1 meters?
4.5
4
3.5
3
2.5
Distance (m)
2.
1.5
1
0.5
0
0
2
6
8
10
Time (s)

Answers

Answer:

4

(m)

2 ( s )

Explanation:

ok...........

Cosmologists are scientists who study stars, galaxies, black holes, and other objects in the universe. In order to study the billions and billions of stars, cosmologists use highly advanced telescopes and create computer models to trace the stars’ motion.

What is one type of limitation that requires cosmologists to use these telescopes?

A.money
B.time
C.the size of the system
D.ethical concerns

Answers

Answer:

a

idkdidkdidkdkkdhdksijsnansjnshejdhjsnnebdhhdbsbbshshhsnsjshs

The answer is D, ethical concerns.

Good luck on the Unit Test, fellow edge.nuity user.

1. How many energy levels do the electrons in an atom of iron occupy?​

Answers

Electrons in atoms occupy energy levels, also called electron shells, outside the nucleus. Different shells can hold different maximum numbers of electrons. The electrons in an atom occupy the lowest available energy level first.on:

Answer:

26. Brainliest?

Explanation:

Iron atoms have 26 electrons and the shell structure is 2.8.

What do the planets have in common and how are they different?

Answers

They are all different sizes and distances from the sun, they all rotate around the sun

Answer:

They vary quite a lot, yet there are some similarities

Explanation:

With Mercury, you have a hot and barren expanse of rock

With Venus, you also have a fairly hot and barren expanse of rock, with a molten core

With Earth, you have a warm/cool variant with water and a full atmosphere

With Mars, you have a colder and barren expanse of valleys and rock, with a rather paste-like ground

With Jupiter, we have our first gas giant, covered in clouds with a thick atmosphere

With Saturn, it is yet another gas giant, with rings of gas and rock and a dense core of metals, such as iron and nickel

With Uranus, it is also rather gas-full with a fair amount of water and methane, which results in its bluish color (an ice giant)

And finally with Neptune, it is the other ice giant, consisting of water, methane, and ammonia

So there are some similarities (gases, water, land formations, etc.) and some differences (rings, temperature, structure, etc.). Our planets are very unique to one another and continue to engage and surprise us.

convert 288cm to Meters

Give explanation + formula

Answers

Answer:

288 cm is 2.88 meters. This is because each centimeter is 1/100th of a meter, or in other words, each meter is 100 cm. To find out cm-m, divide the amount of cm by 100 and change the unit to m.

Explanation:

formula is cm/100=m

288/100= 2.88m

How many ways (directions) can an object move in 1 Dimension? Can it be still? Can it speed up or slow down?

Answers

Explanation:

Let's assume the 1D is along x - axis.

Then, the object can move in two directions, along +x axis or - x axis, depending upon reference point .

Yes, it can be still, speed up and slow down.

Help ASAP plsssss:///

Answers

Answer:

c

Explanation:

2. A ball is dropped from a height of 52 m. The ball falls freely and reaches the ground in 75 s. What was the average speed of the ball?​

Answers

Answer:

v = 0.69 m/s

Explanation:

Given that,

A ball is dropped from a height of 52 m.

The ball reaches the ground in 75 seconds

We need to find the average speed of the ball. The ball will travel a distance of 52 m in 75 s. The average speed of the ball is distance divided by time taken. So,

[tex]v=\dfrac{52\ m}{75\ s}\\\\v=0.69\ m/s[/tex]

Hence, the average speed of the ball is 0.69 m/s.

An airplane flying due north at 90 km/h is being blown due
west at 50 km/h. What is the resultant velocity of the plane?
a
74 km/hr
b 82 km/hr
С
103 km/hr
d 95 km/hr

Answers

Answer:

74km/h

Explanation:

Answer:

103 km/hr

Explanation:

During an experiment, a student moved a cell from pure water to salted water. What will most likely happen to the cell?

Answers

Answer:

During an experiment, a student moves a cell from pure water to salted water. ... It will release water and shrivel. It will release water and burst.

Two magnets are placed near each other on a space station orbiting Earth.
Their north poles are facing each other. Which statement explains what will
happen to the magnets?
O A. They will be repelled because they are in each other's magnetic
field.
B. They will not move because they have only half of a magnetic
field.
C. They will not move because they have very small gravitational
fields.
D. They will be attracted because their electric fields will add
together

Answers

Answer: A. They will be repelled because they are in each other's magnetic

field.

Explanation: Apex and gravity and electrical don't have effect on magnets magnetic field.

The statement that described the happening to the magnets should be that they will be attracted because they are in each other's magnetic.

What is a magnet?

Magnet refers to the  piece of iron or other material that comprise of the atoms also it inbuilt the magnetism properties like attraction of other type of iron objects. In the case when the two magnets shoud be placed near to each other also their north poles should be faced each other so it should be attracted since it is considered as the each other magnetic.

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What is the smallest part of a chemical compound that has all the properties
of that compound
A. A nucleus
B. A mineral
C. An atom
D. A molecule

Answers

Answer:

D. A Molecule

Explanation:

The smallest particle of a compound that still has the properties of the compound is a molecule. It is composed of two or more bonded atoms.

The smallest part of a chemical compound that has all the properties of that compound is a molecule (option d)

In the world of chemistry, substances are composed of tiny units called atoms, and these atoms bond together to form chemical compounds.

Option A, a nucleus, refers to the central core of an atom and consists of protons and neutrons. While essential for an atom, a nucleus alone does not represent a complete chemical compound.

Option B, a mineral, is a naturally occurring inorganic substance with a specific chemical composition and a definite atomic structure. However, minerals are not the smallest parts of a chemical compound.

Option C, an atom, is the fundamental building block of matter. It consists of a nucleus (containing protons and neutrons) surrounded by electrons. While atoms are crucial for forming compounds, they are not the smallest unit that retains all the properties of a compound.

Therefore, the correct answer is Option D, a molecule. A molecule is a group of two or more atoms bonded together, representing the smallest part of a chemical compound that possesses all the characteristics and properties of that compound.

Hence the correct option is (d).

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Which part of an amino acid's basic structure gives it its unique functional characteristics? Choose 1 answer: А R-group B Central alpha (a) carbon Carboxyl group (-COOH) Amino group (-NH2)​

Answers

Answer:

A. R- group

Explanation:

The part of an amino acid's basic structure gives it its unique functional characteristics is R-group.

What is amino acids?

Amino acids are smaller molecules that join or combine together through peptide bond to form protein. They are refer to the building block of protein.

Therefore, The part of an amino acid's basic structure gives it its unique functional characteristics is R-group.

Learn more about amino acids below.

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In addition to the idea that Jupiter has moons orbiting it, what other evidence did Galileo use to support Copernicus’s model and disprove Aristotle and Ptolemy?

Answers

Galileo's observations of Jupiter's orbiting moons showed that there were other centers of motion in the universe. Galileo's most crucial observation was the observation of Venus in different phases, which directly supported the idea that objects orbit the Sun rather than Earth.

Answer:

Venus has phases similar to the moon’s phases.

Explanation:

i hope this helped you :)

Please Answer: Which lists the waves in order of frequency, from highest to lowest? A.X-rays, gamma rays, ultraviolet B.radio waves, visible light, X-rays C.ultraviolet, microwaves, gamma rays D.visible light, infrared, microwaves

Answers

Answer:

D.visible light, infrared, microwaves

Explanation:

Answer:

visible light, infrared, microwaves

Explanation:

from highest to lowest

.
In Thomson's plum pudding model of the atom where is the positive
charge, in the plums or in the dough which surrounds them?
Enter the answer




What’s the answer

Answers

Answer:

Positive charge is in the dough in which the negatively charged plums are embedded.

what is noncontact force

Answers

Answer:

A non-contact force is a force which acts on an object without coming physically in contact with it.

Explanation:

For example:

Gravitational force.

Magnetic force.

Electrostatics.

Nuclear force.

Answer:

Non-contact force are forces that exist(arise) without any form of contact between two objects.

Examples are ;

: Magnetic Force ;is a force that attracts certain metal objects (like iron and iron filings) towards a magnet. Electrostatic Force ;s the force exerted by a charged body on another charged or uncharged bodyGravitational force ; is a force exerted by the earth on all objects on it

Explanation:

Bacteria prefer a dry environment to a damp or moist environment. False True

Answers

Answer:

false

Explanation:

cause bacteria prefers moist and damp environment

Answer:

False

Explanation: bacteria thrive on moister and grow due to it. if the enviroment they were in were to be dry, the bacteria itself would die. Hope this helps! :)

w many significant figures does the following number have: 100.00210

Answers

Answer:

Number of Significant Figures: 8

The Significant Figures are 1 0 0 0 0 2 1 0

Explanation:

We have that 100.00210 has a 8 significant figure from the rules of Significant figures

8 significant figure

 

From the question we are told

How many significant figures does the following number have: 100.00210

Generally

Non zeros Number are significant

Zeros that are before a none zero a not significant

Therefore

100.00210 has a 8 significant figure from the rules of Significant figures

8 significant figure

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A truck covers 40.0 m in 7.10 s while uniformly slowing down to a final velocity of 2.05 m/s.
(a) Find the truck's original speed. _______ m/s
(b) Find its acceleration. __________ m/s^2

Answers

Answer:

(A) Original speed= 9.22 m/s

(B) Acceleration= -1.0099 m\s^2

Explanation:

A truck covers 40m in 7.10 secs

The truck slows down at a uniform velocity of 2.05 m/s

(A) The original speed can be calculated as follows

Vo= 2(40)/7.10 - 2.05

= 80/7.10 - 2.05

= 11.2676 - 2.05

= 9.22m/s

(B) The acceleration can be calculated as follows

a= Vf-Vo/t

= 2.05-9.22/7.10

= -7.17/7.10

= -1.0099m/s^2

an ice cube is placed in the sun later there is a puddle of water later still the.puddle is gone what kind of change has occured​

Answers

Clear question is;

An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone. What kind of change has occurred?

Answer:

Physical change.

Explanation:

There are two type of changes called physical change and chemical change.

In Physical changes, there is only change in the appearance of the substance and not its chemical composition. Whereas, in Chemical changes the substance changes entirely into another substance with a new chemical formula.

Now, for the ice cube, it has melted from a solid state to a liquid state. Thus, there is only a change in appearance and not its chemical composition. Thus, it's a physical change that has occurred.

PLEASE ANSWER FAST!!What was significant about the clay samples from the Western Hemisphere? How was the Alvarez hypothesis modified in response?​

Answers

Answer:

The Western Hemisphere contained significantly higher amounts of shock-fractured quartz. This led Walter and Luis Alvarez to hypothesize that the asteroid impact site was in the Western Hemisphere.

Explanation:

A scientist has two containers. Inside each container, there is a blue liquid. The liquids are substances. What can the scientist do to help find out whether these two liquids are both the SAME substance? *

Answers

the scientists can test them both out.

Which of the following is NOT a reason why
mathematics is valuable in science?

Answers

Are there specific statements to choose from for this?

A competitive go-cart driver is traveling 32 m/s. He sees a caution flag go up, so he slows at a rate of -1.5 m/s^2 in 10.8 s. What is his final velocity?

Answers

Answer:

15.8 m/s

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 32 m/s.

Acceleration (a) = – 1.5 m/s²

Time (t) = 10.8 s.

Final velocity (v) =?

Acceleration is simply defined as the rate of change of velocity with time. Mathematically, it is expressed as:

Acceleration (a) = [final velocity (v) – initial velocity (u)] / time (t)

a = (v – u) /t

With the above formula, we can obtain the final velocity of go-cart driver as follow:

Initial velocity (u) = 32 m/s.

Acceleration (a) = – 1.5 m/s²

Time (t) = 10.8 s.

Final velocity (v) =?

a = (v – u) /t

– 1.5 = (v – 32) / 10.8

Cross multiply

(v – 32) = –1.5 × 10.8

v – 32 = – 16.2

Collect like terms

v = – 16.2 + 32

v = 15.8 m/s

Therefore, the final velocity of go-cart driver is 15.8 m/s.

a car is driving at 57 mi/hr, how long will it take for the car to go 80 mile

Answers

Answer:

1 hour 6 minutes and about 6 seconds

A ball thrown vertically upward is caught by the thrower after 4.00 sec. Find the initial velocity of the ball and the maximum height it reaches.

Answers

Answer:

Initial velocity = 39.2m/s

Maximum height is 78.4m

Explanation:

Given

[tex]Time, t = 4s[/tex]

Solving (a): Initial Velocity

Using first law of motion:

[tex]v = u + at[/tex]

Where

[tex]v = final\ velocity = 0[/tex]

[tex]u = iniital\ velocity = ??[/tex]

[tex]a = acceleration = -g[/tex] [g represents acceleration due to gravity]

[tex]t = 4[/tex]

Substitute these value in the above formula:

[tex]v = u + at[/tex]

[tex]0 = u - g * 4[/tex]

[tex]0 = u - 9.8 * 4[/tex]

Take g as 9.8m/s²

[tex]0 = u - 39.2[/tex]

[tex]u = 39.2m/s\\[/tex]

Hence, initial velocity = 39.2m/s

Solving (b): Maximum Height

This will be solved using second equation of motion

[tex]s = ut + \frac{1}{2}at^2[/tex]

This becomes

[tex]s = ut - \frac{1}{2}gt^2[/tex]

Substitute values for u, t and g

[tex]s = 39.2 * 4 - \frac{1}{2} * 9.8 * 4^2[/tex]

[tex]s = 156.8 - 78.4[/tex]

[tex]s = 78.4[/tex]

Hence, the maximum height is 78.4m

Joe walked 1200m East and then turned and walked 600m West. Which statement is true about Joe’s walk

Answers

Answer:

which statement is true about his walk? he walked 1200m then went back 600m

Explanation:

because he walked 1200m east the 600m west so it adds up to 600

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