Explanation:
The time period of a simple pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{L}{g}}[/tex]
L is length of the pendulum and g is acceleration due to gravity
It is very much clear that the time period depends on the length of the pendulum.
In this problem, there are 100 simple pendulums in a room having identical bobs which are displaced to different extents but only 25 of these pendulums have different time periods. The only reason for 25 pendulums having different time periods is that they have different lengths than the other 75 pendulums.
Maria walks 20 ft north, 35 ft east, and 20 ft south to get to the pool. Find her distance and displacement.
Answer: distance = 75ft
displacement = 35ft east
The required displacement of maria to get to the pool is 35 ft and the distance is 75 ft.
What are distance and displacement?To solve this problem, we first need to understand the difference between distance and displacement.
Distance is the total length traveled by an object, regardless of its starting and ending points. In this case, the distance traveled by Maria would be the sum of the distances of each segment of her journey,
Distance = 20 ft + 35 ft + 20 ft = 75 ft
Displacement, on the other hand, is the straight-line distance from the starting point to the ending point, measured in a straight line.
So let's assume the movement of maria on coordinate where North and East are positive movements and West and south are negative now add the distances,
Displacement =20 + 35 - 20 = 35 ft
Thus, the required displacement of maria to get to the pool is 35 ft and the distance is 75 ft.
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A biker accelerates from rest to 10 m/s in 5 seconds. What is the biker's
acceleration? Calculate for the missing variable
Your answer
Answer:
It starts from rest so Vi=0
Vf=10 m/s
t=5 seconds
Explanation:
a=Vf-Vi/t
a=10-0/5
a=10/5
a=2m/s^s
A rock is thrown straight upward with an initial velocity of 20 m/s where the downward acceleration due to gravity is -10 m/s^2. How long is the ball in the air before it returns to the thrower's hand?
Answer:
4 seconds
Explanation:
Given:
Δy = 0 m
v₀ = 20 m/s
a = -10 m/s²
Find: t
Δy = v₀ t + ½ at²
0 m = (20 m/s) t + ½ (-10 m/s²) t²
0 = 20t − 5t²
0 = 5t (4 − t)
t = 4
uses and effects of UV rays?
Answer:
The above pic may help you :)
Name three properties that can be observed in a substance.
Color, Opacity, Hardness
The three properties that can be observed in a substance will be density, physical state, and color.
What is the substance?A kind of matter with predictable chemical composition and physical characteristics is referred to as a chemical substance. According to certain texts, a chemical compound cannot be physically divided into its component parts without rupturing chemical bonds.
A substance's physical property is a quality that can be seen or quantified without affecting the substance's identity. Color, density, hardness, and boiling and melting points are examples of physical qualities. The capacity of a material to go through a certain chemical transition is described by its chemical property.
The three properties that can be observed in a substance will be density, physical state, and color.
The three characteristics of a substance that can be seen are its density, physical condition, and color.
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is 45 m/s2 a scalar or a vector quantity and how do you know?
Answer:
Explanation:
it is a vector as it has a magnitude and a direction. If it was a scalar quantity it would just have a magnitude and would be 45 m. Acceleration is an example of a vector quantity
What is energy?
A.a push or pull
B. A change in the position of an object
C. The ability to cause change in matter
D. Anything that takes up space and has mass
PLZZ ANSWER THE QUESTION
Answer:
a
Explanation:
What information does a distance time graph provide
Match the object to the type of motion it's displaying. which letter goes with which number?
A. linear motion
1. the propeller of an aircraft in midair
2.a car driving up a winding mountain road
B. rotational motion
C. curvilinear motion
3. music being played on a stringed instrument, such as a guitar
4.runners sprinting across a straight track
D. vibrational motion.
Hello There!!
I think the best answer choice is:
A. [tex]Linear[/tex] [tex]motion[/tex]
B. [tex]Rotational[/tex] [tex]motion[/tex]
D. [tex]Vibrational[/tex] [tex]motion[/tex]
4. [tex]Runners[/tex] [tex]sprinting[/tex] [tex]across[/tex] [tex]a[/tex] [tex]straight[/tex] [tex]track[/tex]
C. [tex]Curvilinear[/tex] [tex]motion[/tex]
3. [tex]Music[/tex] [tex]being\\\\\\[/tex] [tex]played[/tex] [tex]on[/tex] [tex]a[/tex] [tex]stringed[/tex] [tex]instrument,[/tex] [tex]such[/tex] [tex]as[/tex] [tex]a[/tex] [tex]guitar[/tex]
2. [tex]A[/tex] [tex]car[/tex] [tex]driving[/tex] [tex]up[/tex] [tex]a[/tex] [tex]winding[/tex] [tex]mountain[/tex] [tex]road[/tex]
1. [tex]The[/tex] [tex]propeller[/tex] [tex]of[/tex] [tex]an[/tex] [tex]aircraft[/tex] [tex]in[/tex] [tex]midair[/tex]
I'm not sure this is 100% right....
P.S Tell me if this is wrong....
[tex]Hope This Helps[/tex] [tex]Sangwoo!![/tex]
#[tex]Be[/tex] [tex]Bold[/tex]
# [tex]Always[/tex] [tex]Brainly[/tex]
A.linear motion is runners sprinting across a straight track
B. rotational motion is the propeller of an aircraft in midair
C. curvilinear motion is a car driving up a winding mountain road
D.vibrational motion music being played on a stringed instrument, such as a guitar
What is a uniform circular motion?It is defined as motion when the object is moving in a circle with a constant speed and its velocity is changing with every moment because of the change of direction but the speed of the object is constant in a uniform circular motion
Hence, runners sprinting across a straight track is a type of linear motion, the propeller of an aircraft in midair is performing the rotational motion, a car driving up a winding mountain road is a curvilinear motion, music being played on a stringed instrument, such as a guitar is a type of vibrational motion
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Help ASAP plsssss:///
Answer:
c
Explanation:
If the current delivered in a battery is 1.2 A and the power required for the light is 0.2W, How many volts this power need to be
23
eat it or not eat it
How are science and technology the same
Answer:
Science is the study of the natural world by collecting data through a systematic process called the scientific method. And technology is where we apply science to create devices that can solve problems and do tasks. Technology is literally the application of science
Explanation:
Igneous rocks that form under conditions of fast cooling are said to be
HELP PLEASE THIS IS DUE RIGHT NOW. What is the difference between constant acceleration and instantaneous acceleration?
Which statement describes a socialist government?
Answer:
Socialism is a political, social, economic philospohy. Socialist governtment is a form of governtment in which the means of production are owned by the government of the country.
Explanation:
(i thought you could find this in google)
Answer:
Socialism is a political, social, and economic philosophy encompassing a range of economic and social systems characterized by social ownership of the means of production. ... Social ownership can be public, collective, cooperative, or of equity. Socialism is an economic and political system. It is an economic theory of social organization. It states that the means of making, moving, and trading wealth should be owned or controlled by the workers. This means the money made belongs to the workers who make the products, instead of groups of private owners.Socialist government is a form of government in which the means of production are owned by the government of the country. Social systems in this form of government are the ones are divided into the market and the non market forms. The means of transportation are controlled by the government here.
the unit of force, Newton is a derived unit. (give reasons)
Answer:
[tex] \boxed{ \sf{see \: below}}[/tex]
Explanation
The unit of force, Newton is a derived unit because it depends on three fundamental units. i.e kilogram , meter and second.
Hope I helped!
Best regards! :D
How many millimeters are in .075cm ?
Answer: 0.75
Explanation:
take away the 0
please someone help me.
A car starts to move from rest after 5 seconds its velocity becomes 15m/s, find the acceleration of the car.
Answer:
acceleration of the car is 3 m\s^2
Explanation:
from rest means the initial velocity (vi) is zero
time = 5s
final velocity (vf) = 15m\s
a = vf - vi \ t
a = (15-0) \ 5
a= 3 m\s^2
which means that the car is speeding up 3 meters every second
Answer:
3m/s
Simple
Explanation:
Solution,
U=0
Velocity=15m/s
Time=5 sec
Now,
Acceleration=V-U÷T
=15m/s-0÷5
=15m/s÷5
=3m/s
Hence, the acceleratiob of the car is 3m/s.
Could I get some help with this
please give me brainlest!!
the answer is A.
compare the advantages and disadvantages of converting our system of measurement in the united states from the English system to the international system of units
Answer:
This is required answer.
Explanation:
Given that,
The advantages and disadvantages of converting our system of measurement in the united states from the English system to the international system of units
The difference between SI units and english system units.
SI systems,
The SI system uses metre, kilogram and second.
English system,
The english system uses yard, foot, cubit, mile, quart, pint, gallons, etc.
We need to find the comparison between system of measurement in the united states from the English system to the international system of units
Advantage :
The most advantage of SI unit is that it has only one unit for each quantity. It means, it is never needed to change from one unit to another unit and here is no changing factors for students to memorize.
Disadvantage :
The most disadvantage of english system is that it has more unit for each quantity. It means, it is needed to change from one unit to another unit and here is changing factors most for students to memorize.
Hence, This is required answer.
Transitioning to the International System of Units (SI) offers global standardization, simplicity, and consistency in measurements, promoting scientific accuracy and ease of communication. However, the process involves costs, potential resistance to change, and considerations of cultural and practical factors that need to be carefully addressed for a successful conversion.
Here's a comparison:
Advantages of converting to the SI system:
1) Global Standardization: The SI system is the most widely used system of measurement worldwide, ensuring uniformity and ease of communication in international trade, science, and engineering.
2) Simplicity and Coherence: The SI system is based on a decimal system, making conversions between units straightforward and logical.
3) Consistency and Interchangeability: SI units are based on well-defined standards and physical constants, providing a consistent and unambiguous way to express quantities, and improving the accuracy and reliability of measurements.
4) Learning and Education: Adopting the SI system in education can simplify the learning process for students and facilitate the understanding of scientific concepts, promoting scientific literacy.
5) Compatibility with Technology: The SI system is compatible with modern technology and scientific instruments, enhancing the accuracy and precision of measurements.
Disadvantages of converting to the SI system:
1) Transition Costs: Implementing a change in the entire measurement system can be costly, requiring new standards, education, and recalibration of equipment and infrastructure.
2) Resistance to Change: People who are familiar with the English system may initially resist adopting the SI system, leading to a learning curve and potential confusion during the transition.
3) Cultural Factors: The English system has been ingrained in the culture and everyday life of the United States, and some may argue for preserving the historical tradition of the system.
4) Potential Loss of Precision: In some cases, the SI system may result in rounded or approximated measurements, leading to potential loss of precision compared to the English system.
5) Mixing Units: During the transition period, there might be a mix of both systems, leading to potential errors or misunderstandings when using different units.
In summary, transitioning to the International System of Units (SI) offers global standardization, simplicity, and consistency in measurements, promoting scientific accuracy and ease of communication.
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ons How many protons are in an atom of tin?
How many electrons are in an atom of tin?
How many neutrons are in an atom of tin? Round your
answer to the nearest whole number.
Answer:50,50,69
Explanation:I just did it
"Suppose an elephant (Tiny) was
pacing back and forth at the zoo.
She first goes 8 meters to the
left, 6 meters to the right, and 2
meters to the left.
What is the total distance Tiny
has traveled?
I
What is Tiny's displacement?
A cliff diver from the top of a 100 (m) cliff. He begins his dive by jumping up with a velocity of 5 (m/s) a. How
long does it take for him to hit the water below? b. What is his velocity right before he hits the water?
Answer:
A.) 4.81 seconds
B.) 44.6 m/s
Explanation:
He begins his dive by jumping up with a velocity of 5 (m/s).
Let us first calculate the maximum height reached by using third equation of motion
V^2 = U^2 - 2gH
At maximum height, V = 0
0 = 5^5 - 2 × 9.8H
19.6H = 25
H = 25 /19.6
H = 1.28 m
The time taken for the diver to reach the water from the maximum height can be calculated by using second equation of motion.
Where height h = 1.28 + 100 = 101.28 m
h = Ut + 1/2gt^2
As the diver drop from maximum height, U = 0
101.28 = 1/2 × 9.8 × t^2
4.9t^2 = 101.28
t^2 = 101.28/4.9
t^2 = 20.669
t = sqrt ( 20.669)
t = 4.55s
As the diver jumped up, the time taken to reach the maximum height will be
Time = 1.28 / 5 = 0.256
The time taken for him to hit the water below will be 0.256 + 4.55 = 4.81 seconds
B.) Velocity right before he hits the water will be
V^2 = U^2 + 2gH
But U = 0
V^2 = 2 × 9.8 × 101.28
V^2 = 1985.09
V = 44.6 m/s
A.) The time taken should be 4.81 seconds
B.) The velocity should be 44.6 m/s
Calculation of the time taken and velocity:Here we used third equation of motion
V^2 = U^2 - 2gH
At maximum height, V = 0
Now
0 = 5^5 - 2 × 9.8H
19.6H = 25
H = 25 /19.6
H = 1.28 m
Here the second equation of motion.
Here height h = 1.28 + 100 = 101.28 m
So,
h = Ut + 1/2gt^2
Since the diver drop from maximum height, U = 0
So,
101.28 = 1/2 × 9.8 × t^2
4.9t^2 = 101.28
t^2 = 101.28/4.9
t^2 = 20.669
t = sqrt ( 20.669)
t = 4.55s
Now
Time = 1.28 / 5 = 0.256
Finally the time should be
= 0.256 + 4.55
= 4.81 seconds
B.)
We know that
V^2 = U^2 + 2gH
But U = 0
So,
V^2 = 2 × 9.8 × 101.28
V^2 = 1985.09
V = 44.6 m/s
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If you want to know your speed going from point A to point B, what
information do you need to know?*
Answer:
the distance between point a and b and the time it takes to get from a to b.
Explanation:
d/t =v
Which source of energy would you prefer for cooking and why?
Answer:
gas
Explanation:
because It is fast and easy
write any five uses of uv rays
John has decided he needs to work harder on his Social Studies project. Then, his teacher says if he gets a good grade in Social Studies, he may be eligible for a special scholarship for college. What type of motivation is present here?
a.
Intrinsic
c.
Extrinsic to intrinsic
b.
Extrinsic
d.
Intrinsic to extrinsic
Please select the best answer from the choices provided
A
B
C
D
Answer: Extrinsic to intrinsic
Explanation:
The type of motivation is present here is d. Intrinsic to extrinsic
The following information should be considered:
Intrinsic motivation comprise of performing a task since it's personally rewarding to you. While on the other hand, Extrinsic motivation comprise of finishing a task since of outside causes like avoiding punishment or collecting a reward.Learn more: https://brainly.com/question/1152162?referrer=searchResults
How many minutes in a century?
Answer:
52,596,000
Explanation:
Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s^2. (round to the nearest whole number)
Answer:
18.9 N or 19 N rounded
Explanation:
m = 0.145 kg
a = 130 m/s^2
F = ma = (0.145 kg)(130 m/s^2) = 18.9 N
Magnitude of the average force
F = 18. 9 N
There are three laws of motion that are given by Newton in order to study the Force and Inertia on the objects in motion or rest.
Newton's First Law defines Inertia
The second law gives the definition of Force
Third law states about action reaction pairs on the objects interacting with each other.
According to Newton' s second law of motion we can write equation (1)
[tex]\rm F = ma.....(1) \\\rm Where\; F = Net\; unbalanced\; external\; force\; acting\; on \; the \; system \\\\a = acceleration \; of \; center\; of\; mass\\[/tex]
Now according to the question
we can write
Mass of the baseball = 0.145 kg
Acceleration of the baseball = 130 [tex]m/s^2[/tex]
Magnitude of the average force can be find out by putting in equation (1)
F = ( 0.145 ) ( 130) = 18.85 N [tex]\approx[/tex] 18. 9 N
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