No. A dog chasing its tail is just an animal running around in circles.
The dog's MOTION, however, IS accelerated motion, since the DIRECTION of its motion is constantly changing.
A a dog chasing its tail cannot be considered as acceleration.
What is acceleration?Acceleration is the rate at which velocity changes over time, both in terms of speed and direction.
A point or object moving in a straight line is accelerated if it accelerates or decelerates. Even if the speed is constant, motion on a circle is accelerated because the direction is constantly changing.
For example, if a car accelerates as it turns a corner at constant speed, it is doing so because its direction is changing.
The faster you turn, the faster you accelerate. When velocity changes in magnitude (increase or decrease in speed), direction, or both, there is an acceleration.
Thus, as there is no change in either speed or direction in scenario in which a dog chases its tail, it is not considered as acceleration.
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9. The map shows the migratory range of the
Florida manatee, an endangered species. In
tracking manatees, biologists determine the
animals' range. Conservation groups can use
such data to support plans for protecting
manatees from powerboats, which injure and kill
many manatees.
According to the map, where would
conservation groups want to concentrate their
efforts by talking to boaters during the winter?
A. Georgia and Florida
B. Alabama and Florida
C. Georgia and Alabama
D. South Carolina and Florida
Answer:
I think it's B
I hope it helps u
Hi hello
What is strong nuclear force ?
Answer:
Strong Nuclear Force: It is the attractive force between protons and neutrons in a nucleus.It is charge- independent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron.
Answer:
In nuclear physics and particle physics, the strong interaction is one of the four known fundamental interactions, with the others being electromagnetism, the weak interaction, and gravitation
Explanation:
thank for points
A car starts from rest and accelerates at 5 m/s/s.
a) what is the position of the car after 4 seconds?
b) what is the speed of the car after 4 seconds?
c) how long will it take the car to travel 100 meters?
d) how long will it take the car to reach 30 m/s?
Please find attached photograph for your answer. Hope it helps. Please do comment
4.
Which of the following statement is correct
The density of an object does not remains same if we take small quantity of that substance.
The density of an object remains same irrespective of its shape, size and quantity.
The density of an object does not remains same irrespective of its shape and size.
The density of an object remains same only if its shape and size remains same.
The density of an object remains same irrespective of its shape, size and quantity.
Explanation:
Density is an intensive property. This means that regardless of the object's shape, size, or quantity, the density of that substance will always be the same. Even if you cut the object into a million pieces, they would still each have the same density. It is because density in an intensive property of matter.
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difference between uniform velocity and variable velocity
Explanation:
when a body covers equal distance in equal interval of timein a specific direction it is said to have uniform velocity . when a body covers unequal distance in equal interval of time in a specified direction , it is said to have variable velocity .A car accelerates from 7.0 m/s to 12.0 m/s in 5 s. What is the average acceleration for this time interval?
A. 25 m/s2
B. 3.8 m/s2
C. 1 m/s2
D. -1 m/s2
Answer:
A. 25 m/s2
hope it's right
If a car accelerates from 7.0 m/s to 12.0 m/s in 5 s, then the average acceleration for this time interval would be 1 m/s2.
Therefore the correct answer is option C.
What is acceleration?The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².
As given in the problem If a car accelerates from 7.0 m/s to 12.0 m/s in 5 s, then w have to calculate the average acceleration for this time interval,
By using the first equation of motion,
v = u +at
12 = 7 + 5a
5a = 5
a = 1 m/s²
Thus, the average acceleration of the car comes out to be 1 m/s², therefore the correct answer is option C.
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What is the final velocity of a dragster that travels 400 meters from the start line
to the finish line in 5 seconds? *
Answer:
80m/s
Explanation:
The formula for velocity is [ v = s/t ] where s = displacement and t = time.
= 400/5
= 80m/s
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What is the speed of a walking person in m/s if the person travels 2000 m in 35 minutes?
Answer:
speed = distance / time taken
=2000/35
=57.14 m/s
Explanation:
this is the answer plz add it as brainliest
Answer:
0.952 m/s
Explanation:
write an experiment to show that black surfaces absorb heat energy more than shiny polished surfaces or white surface
Answer: One example of an experiment you can do is find out the heat difference between a white car and a black car using the sun in a hot day.
Explanation: The black car would absorb more heat from the sun and would make the inside of the black car hotter than the white car.
A compass works because its magnetic needle
a. contain atoms
b. contain charged particles
c. repels magnet
d. spins freely
Answer
c. repels magnet
After using soap to wash dishes by hand, if is sometimes difficult to keep your hands from remaining stick. Explain why rinshing your hand in lemon juice would make then less slick
an electric bulb has power 500 watt. what does it means
Answer:
The bulb consumes electrical energy at the rate of 500 Watts
1 Watt = 1 Joule/sec where the joule is the unit of energy
Electric energy is often expressed in kw-hrs
This means that 1 kilowatt of power is used for 1 hour
1 kw-hr = 1000 joules/sec * 3600 sec = 3.6E6 joules of energy
If an object is projected horizontally from a height of 5 m with an initial velocity of 7 m/s, what is the value of x^0?
x0=−9.8 m/s2
x subscript 0 baseline equals negative 9.8 m per s squared
x0=0
x subscript 0 baseline equals 0
x0=5
x subscript 0 baseline equals 5
x0=7
The horizontal displacement (x₀) of the object is 7 m.
The given parameters;
height of the object projection, h = 5 minitial horizontal velocity of the object, uₓ = 7 m/sThe vertical displacement equation of the object is given as;
h = vt + ¹/₂gt²
where;
v is the initial vertical velocity = 0
The time of motion is calculated as;
5 = 0 + (0.5 x 9.8)t²
5 = 4.9t²
[tex]t^2 = \frac{5}{4.9} \\\\t^2 = 1.02\\\\t = \sqrt{1.02} \\\\t = 1 \ s[/tex]
The horizontal displacement of the object is calculated as;
X₀ = uₓt
X₀ = 7 x 1
X₀ = 7 m
Thus, the horizontal displacement (x₀) of the object is 7 m.
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10. Scientists try to develop an explanation for what
they see happening in the natural world. What
must be true of any explanation they develop?
A. It must be supported by evidence.
B. It can never be changed.
C. It must be shown to have practical value for
humans.
D. It must be based on information that other
scientists have also gathered.
Answer:
it must be based on information that other scientists have also gathered
Answer:
hope its ok
Explanation:
Science is a way of learning about what is in the natural world, how the natural world works, and how the natural world got to be the way it is. It is not simply a collection of facts; rather it is a path to understanding.so it should contain a logical theory but it can also never be said as the final answer.
so A) OR D) both are correct
Which one is not physical quantity question is mistake
Answer:
Length
Explanation:
Answer:
length
hope it helps you
why is there more potential for wind energy in the upper himalayan in nepal?
Answer:
The potential area of wind power in the country is about 6074 sq. km with wind power density greater than 300 watt/m2. More than 3,000 MW of electricity could be generated at 5 MW per sq km. The commercially viable wind potential of the country is estimated to be only about 448 MW.
An atom’s location on the periodic table provides information such as…
An atom’s location on the periodic table provides information such as;
1. Atomic number.
2. Number of valence electrons.
3. Atomic weight.
An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.
Generally, atoms are typically made up of three (3) distinct particles and these are;
Protons. Neutrons. Electrons.Periodic table is an organized tabular array of all the chemical elements arranged in order of increasing atomic number (in rows).
Generally, an atom’s location on the periodic table (the group of elements it belongs to) provides information such as;
1. Atomic number.
2. Number of valence electrons.
3. Atomic weight.
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What is a description for this lionfish?
the lionfish, a longstanding showstopper in home aquariums, is a flourishing invasive species in U.S. Southeast and Caribbean coastal waters. This invasive species has the potential to harm reef ecosystems because it is a top predator that competes for food and space with overfished native stocks such as snapper and grouper. Scientists fear that lionfish will also kill off helpful species such as algae-eating parrotfish, allowing seaweed to overtake the reefs. In the U.S., the lionfish population is continuing to grow and increase its range. This is largely because lionfish have no known predators and reproduce all year long; a mature female releases roughly two million eggs a year.
A car is travelling down a road. A displacement vs. time graph for the car is shown below. What is the velocity of the car 6 s into the car's motion?
May you attach your displacement vs. time graph picture and resend the question once again then I might be able to help you
A car accelerates from rest at 6.6 m/s^2. How much time does it need to attain a speed of 7 m/s?
explanation:
Here,
initial velocity(u)=0m/sfinal velocity (v)=7m/sacceleration (a)=6.6m/s²time(t)=?Using Formula;
v = u + at
or, 7 = 0 + (6.6*t)
or, 7 = 6.6t
or 7/6.6 = t
or, t = 1.06s
I think it will help you....
A diagram shows how gravity on Earth works on an object located in different spots in a seaside community. Where is gravity between Earth and an object the strongest?
A when the object is on the highest branch of a pine tree
B when an object is at sea level
C when the object is on top of a nearby mountain
D when the object is on top of a telephone pole
Answer:
B) when an object is at sea level
Explanation:
Answer:
When the object is at sea level
Explanation:
1. A body has a velocity of 72 km/hr. Find its value in m/s.
72 Km/hr
= 72000 m/ 60×60 s
= 72000 m/ 3600 s
= 20 m/s
Answer is 20 m/s.
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two spherical objects one an insulation conductor and the other a conductor.negative charges are introduced at point A in each case .which would be the position of the charges.explain your observation.
Answer:
The charge move closer to conductor it it has any charge otherwise it remains at its place
help me please i dont understand
9. Liquid A has greater density than Liquid B. Which liquid will be exerting more pressure on the sides of the container?
Answer:
The depth of water near middle tube is greater so the water comes out with greater pressure from middle tube and falls farther away from the base of vessel. The depth of water near lowermost tube is the greatest so the water comes out of lowermost tube with the greatest pressure and goes farthest from the vessel.
What is "the cloud"?
Answer:
Cloud is a condensed from of atmospheric moisture consisting of small water droplets.
Clouds cause rainfall and snow fall.
Different types of clouds are found in the atmosphere. Some main types of them are cirrus, cumulus, nimbus, and stratus. Most clouds are generated by the cooling of air as it rises.
At the scene of an accident, a police officer notices that the skid marks of a car are 10m long. The officer knows
that the typical deceleration of a car when skidding is 45 m/s?. What can the officer estimate for the original
speed of the car?
Answer:
30 m/s
Explanation:
0^2= Vi^2+ 2 (-45)(10)
The original speed of the car is equal to 30m/s which can be calculated from the third equation of motion.
What is the equation of motion?Equations of motion explain the basic concept of motion such as the position, velocity, or acceleration of an object several times. These three equations of motion can be governed by the motion of an object in 1D, 2D, and 3D.
There are three equations of motion that can be used to find displacement(s), velocity (v or u), time(t), and acceleration(a). The third equation of motion can be represented as follows:
v² = u² + 2aS
Given, the car is deaccelerated by 45m/s².
The distance covered by the car before it stops, S = 10 m
The final velocity of the car, v = 0 as it comes to rest.
We have to calculate the initial velocity of the car by using the third equation of motion:
(0)² = (u)² + 2 (-45) × (10)
u²= 900
u = 30 m/s
Therefore, the original speed of the car is 30 m/s.
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Why are there only two elements in the first period of the periodic table?(1 point)
because the first two elements both start with H and are grouped together
because the next elements have other things in common and they need to be arranged together
because only two electrons can fit in the first orbit around the nucleus, and each period on the table is organized by number of orbits
because each row increases in atomic mass by a specific number, so anything over five is in the second row
Answer:
because each row increases in atomic mass by a specific number, so anything over five is in the second row.
I need help on this question
Is the following statement an observation or an inference? "The house collapsed at the same time that the poles fell down." Explain
Answer: Observation (≧▽≦)
Explanation: An observation is what you noticed. That being said i noticed "The house collapsed at the same time that the poles fell down." //Hope this helped ≧▽≦//
In the opposite figure, what is the
value of equivalent resistance
between (a) and (b)
A-3 Ω
B-6 Ω
C-9 Ω
D-13.5 Ω
Answer:
9
Explanation:
since the resistance is not changing
