Answer:
0.1351 m
Explanation:
*my number calculations may be wrong, but the process is correct*
W = Wg - Ws = mgh - [tex]\frac{1}{2}[/tex]kx^2 = mg(d + x)sinθ - [tex]\frac{1}{2}[/tex]kx^2
Δk = 0 - [tex]\frac{1}{2\\}[/tex]mv[tex]_{i}[/tex]^2
W = Δk
-[tex]\frac{1}{2}[/tex]mv[tex]_{i}[/tex]^2 = mg(d + x)sinθ - [tex]\frac{1}{2}[/tex]kx^2
Now plug in your given values:
m=2.27, g=9.8, d=0.327, θ=20, k=455, v=0.750
Now rearrange the equation so it is in the form ax^2 + bx + c = 0 where x is the unknown distance you are looking for.
~if my math is correct it should be:~
0 = -227.5x^2 + 7.608580108x + 3.126443195
Now plug your numbers into the quadratic formula and the positive x value you get is the answer.
~if my math is correct it should be:~
x = 0.1351376847 m = 0.1351 m
g A small ball is tied to one end of a light 2.5-m wire, and the other end of the wire is hooked to the ceiling. A person pulls the ball to the side until the wire makes an angle of 35° with the plane of the ceiling and then gently releases it. What is the angular speed of the ball, in rad/s, as it swings through its lowest point?
The angular speed of the ball as it swings through its lowest point is 1.8 rad/s.
The given parameters;
radius of the circular path, r = 2.5 m
angle with the vertical, θ = 35⁰
The angular speed of the ball, as it swings through its lowest point is calculated as follows;
[tex]Tcos \theta = m\omega ^2 r\\\\mgcos \theta = m \omega ^2 r\\\\gcos \theta = \omega ^2 r\\\\\omega ^2 = \frac{gcos \theta }{r} \\\\\omega = \sqrt{\frac{gcos \theta }{r} } \\\\\omega = \sqrt{\frac{9.8 \times cos (35) }{2.5} } \\\\\omega = 1.8 \ rad/s[/tex]
Thus, the angular speed of the ball as it swings through its lowest point is 1.8 rad/s.
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Si la masa es 15.0 kg y la aceleración es 3.0 m/s^2, halla la fuerza en Newton.
By applying Newton's Second Law of Motion, the force acting on the mass is 45.0 Newton.
Given the following data:
Mass = 15.0 kilogramsAcceleration = 3.0 [tex]m/s^2[/tex]To determine the force acting on the mass in Newton, we would apply Newton's Second Law of Motion:
Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on the physical object or body, and inversely proportional to its mass.
Mathematically, Newton's Second Law of Motion is given by this formula;
[tex]Force = mass \times acceleration[/tex]
Substituting the given parameters into the formula, we have;
[tex]Force = 15.0 \times 3.0[/tex]
Force = 45.0 Newton
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There are several ways to model a compound. One type of model is shown. 4 C's are connected in a line by 3 black lines. The C on the left has 3 H's attached to it each by a black line. The next C has 1 H attached by a black line and 1 O attached by 2 black lines. The next C has 2 H's attached to it by 1 black line each. The last C has 2 H's attached to it by 1 black line each and 1 O attached by a single black line. That O has an H attached to it by 1 black line. What is the chemical formula for the molecule represented by the model? CHO C4H9O2 C4H8O C3H8O2
Answer:
The chemical formula for the molecule is [tex]C_4H_9O_2[/tex]
Explanation :
Molecular formula : It is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Structural formula : It is a formula in which the lines are used between the bonded atoms and the atoms are also shown in the structural formula.
In the structural formula, the lines are used between the atoms.
As per given information of compound we conclude that, there are 4 carbon atoms, 9 hydrogen atoms and 2 oxygen atoms.
Thus, the chemical formula for the given molecule will be, [tex]C_4H_9O_2[/tex]
Answer:
B is the answer
Explanation:
While surfing the Internet, you encounter an article written by a foreign blogger saying negative statements and malicious stories about Filipinos. Reading further, you find at the comments section outraged replies from the Filipino community. However, you also find citizens who affirmed the negative statements. Knowing that everyone has the freedom to express his opinion, what do you think are the possible ways to resolve the issue?While surfing the Internet, you encounter an article written by a foreign blogger saying negative statements and malicious stories about Filipinos. Reading further, you find at the comments section outraged replies from the Filipino community. However, you also find citizens who affirmed the negative statements. Knowing that everyone has the freedom to express his opinion, what do you think are the possible ways to resolve the issue?
POSSIBLE SOLUTION 1: _______________________________________________________ _______________________________________________________________________ POSSIBLE SOLUTION 2: _______________________________________________________
__________________________________________________________________________
BEST SOLUTION: ____________________________________________________________ ________________________________________________________________________________________________________________________________________________
The ways to solve this problem is through knowledge dissemination, citizens who were outraged by the article about the negative statements and malicious stories about Filipinos, could submit positive articles about the culture of the Filipino people.
Another way could be through open dialogue, with Filipino internet users, publicly apologizing seeking to become more involved with the Filipino community.
Therefore, the best way to solve the problem is through ethically-based freedom of expression, avoiding stereotypes of a culture you don't belong to, and looking for a way to disseminate respectful and empathetic information about a people.
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What energy transformation takes place when you turn on an electric light?
A) chemical-light-heat
B) chemical- electrical- heat
C) mechanical-light-heat
D) electrical-light-heat
Answer:
D) electric-light-heat
Question 5 (2 points)
How many players are on each team playing on the court in an official game of
basketball?
3
4
5
6
Answer:
5
Explanation:
searched it up
(a) A car with a mass of 950 kg is moving to the right with a constant speed of 1.65 m/s. What is the total force on the car
Answer:2094 ibs
I hope this helps! Please give it a <3
Which statement is correct based on the data in the table?
What is Io’s rock cycle
Answer:
Transitions through geologic time among 3 rock types
Explanation:
The Earth's plates moved over millions of years, bringing continents and other
features of the Earth to their present arrangement.
How is this movement of the lithosphere explained?
continental drift
• the principle of superposition
• the theory of plate tectonics
nuclear fusion
Answer:
theory of plate tectonics
Explanation:
Answer:
What he said above me
Explanation:
I did the test and it was right
How could scientists investigate why flying squirrels fluoresce?
Answer:The reasons for the squirrels to fluoresce pink is still under investigation, but communication and camouflage are two top contenders for why this might be happening, the team has hypothesized. “They could be communicating with members of their own species by showing off their fluorescence to each other, or it might be a sort of mating display,”
is this what you are looking for
Explanation:
Answer:
Left to right: Northern Flying Squirrel (Bruce Museum Collection), UV lit photo of Northern Flying Squirrel at feeder, UV lit photo of Northern Flying Squirrel climbing tree.Over time, uroporphyrin builds up in their bones and teeth, leading them to fluoresce a bright pink color when exposed to ultraviolet light.
Explanation:
Question 13 (2 points)
A mass of 5.00 kg is in a gravitational field of�7.00�N/kg�. What force acts on the mass?
Question 13 options:
35.0 N
0.71 N
1.4 N
9.8 N
Question 14 (2 points)
If you plotted vector arrows around a mass to represent gravitational field vectors, describe how the length of the arrows would change as the locations at which they are drawn become closer to the mass that produces the field.
Question 14 options:
The arrows would become shorter.
The arrows would become longer.
The arrows would remain the same length.
The arrows would become shorter and reverse direction at some distance.
Question 15 (2 points)
What is Kepler's first law of planetary motion?
Question 15 options:
Planets have circular orbits.
Planets have elliptical orbits.
The eccentricity of a planet's orbit is proportional to its distance from the sun.
The period of a planet's orbit is proportional to its distance from the sun.
Question 16 (2 points)
Which of these is correct about the moon's motion around the earth?
Question 16 options:
Centrifugal force acting on the moon balances the force of the earth's gravity.
The moon is in free fall.
There is no gravity acting on the moon because it is in orbit.
The moon exerts no gravitational force on the earth.
Question 17 (2 points)
Which of the following objects do not have gravitational fields?
Question 17 options:
apple
boulder
cat
all objects have gravitational fields
Question 18 (2 points)
Which of the following will generate the largest gravitational field?
Question 18 options:
a paperclip
a dog
a computer
the Earth
Question 19 (2 points)
What happens to the gravitational force between two objects if the distance between them decreases?
Question 19 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 20 (2 points)
What happens to the gravitational force between two objects if the distance between them increases?
Question 20 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 21 (2 points)
What happens to the gravitational force between two objects if the mass of both increases?
Question 21 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 22 (2 points)
What happens to the gravitational force between two objects if the mass of both decreases?
Question 22 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 23 (2 points)
Which of these is generally considered to have been discovered by Einstein?
Question 23 options:
Mass bends space-time.
Space is empty.
An electric charge produces an electric field around it.
Gravity causes acceleration.
Question 24 (2 points)
Which of the following scientists is not involved with gravitation?
Question 24 options:
Einstein
Kepler
Newton
Curie
Question 25 (2 points)
What type of force is gravitational force?
Question 25 options:
field force
applied force
contact force
The required answers are stated below:
13. The force acting on the mass can be calculated by:
Force = mass x gravitational field
= 5.0 x 7.0
= 35.0 N
The force acting is 35.0 N. Thus, option A.
14. When the location of the arrows become closer to the mass, the arrows would become shorter. Option A.
15. Kepler's first law of planetary motion is: Planets have elliptical orbits. Option B.
16. The correct option is A. Centrifugal force acting on the moon balances the force of the earth's gravity.
17. Considering the given options, all the objects have gravitational fields. Thus option D.
18. The Earth will generate the largest gravitational field. Option D.
19. When the distance between two objects decreases, the gravitational force between them increases. Option A. The gravitational force increases.
20. When the distance between two objects increases, the gravitational force between them decreases. Option B. The gravitational force decreases.
21. When the mass of two objects increases, the gravitational force between them increases. Option A. The gravitational force increases.
22. When the mass of two objects decreases, the gravitational force between them decreases. Option B. The gravitational force decreases.
23. Einstein discovered that: Gravity causes acceleration. Option D
24. The scientist from the given options that is not involved with gravitation is Curie. Option D.
25. Force field is a type of force that do not require contact before it can be felt. Gravitational force is a field force. Option A.
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HELP
a car has a displacement of 480 kilometers to the east in 8 hours . What it’s the velocity per hour?
Answer:
The velocity is 60 km/hr.
Explanation:
Given:Displacement (d) = 480 km = 48000 m
Time (t) = 8 Hours = 480 minute
Velocity (v) = ?
Now,
Velocity = Displacement ÷ Time
v = d/t
v = 480/8
v = 60 km/hr
Thus, The velocity is 60 km/hr.
-TheUnknownScientist 72
What is the force of Friction Between A plack of ice those weighs 950N And The ground if ù = 0.127 A 65N B. 114N C. 175N. D. 226N
pic attached !!
hope it helps..(ʘᴗʘ✿)
Derive an Equation for the total magnetic field B for a narrow cell
Answer:
[tex]{\tiny \tiny \: {\color{limegreen} \color {limegreen}{\tt \tt \tt \tt{✓\: \: Verified \: \: \: answer \: \:}}}} [/tex]
Imaging playing a game of baseball on the moon, which has less gravity than Earth and no atmosphere. How would you want to change the game to make it play fairly and fun?
Answer:
In order to reduce the mass of the bat and raise the mass of the ball, the transfer of momentum could only be extended to a distance equal to the size of a baseball stadium. Although the ball's acceleration stays constant regardless of its mass (provided that the mass is less than the mass of the moon), your running time around the bases will be reduced as a result of the increased mass of the ball.
Explanation:
Hope it helps:)
What is the coefficient of Static Friction if It Takes 44N of force to move A Box that Weight 86N ? A, 0.78 B 0.51. C.0.78N D. 0.51N.
PLEASE AWNSER CORRECT BEFORE I GO TO SCHOOL
pic attached !!
hope it helps!!
17. Saan daw nakasakay ang mga Austronesyan nang dumating sa bansa? A. Bangka B. balangay C galyon D. barko
this is a.p ok
Answer:
D.barko po
Explanation:
I trying my best
Mga tanong 1. Ano ang nangyari sa lobo? 2. Sa iyong palagay, saan napunta ang pumutok na lobo? 3. Kapag pumutok ang lobo ano ang lalabas? 4. Kung kulay pula ang lobo kulay pula din ba ang hanging lalabas dito? Bakit?
Answer:
1. Pumutok ang Lobo
2.basurahan
3.may kwentong po ba to paano ko masagot ng wala naman akong mababasang kwento :) :) :)
I will give brainlist
A spring of spring constant k=500 N/m is elongated from its initial length by a distance x=2 cm, then the force applied by the spring is:
A. F= 3N.
B. F= 10 N.
C. F=500 N.
D. F= 0N.
Answer:
1.96 kg * m2/s2
Explanation:
I'm assuming that you are asking what is the elastic potential energy stored in the spring at the position stretched by 16.5 cm...
Since you know the spring constant k, 144 N/m and the spring stretch from the equilibrium position x, is 16.5 cm, or 0.165, you find the spring's potential energy from the equation PE = 12kx2, which equals 1.96 Joules, or kg * m2/s2 if you want SI units.
How is hydrogen obtained and separated from other nearby substances?
How is Hydrogen used?
What products are made from Hydrogen?
Where might Hydrogen be seen or used in everyday life
Any environmental concerns about the use of Hydrogen?
IF YOU ANSWER ALL I WILL MARK YOU BRAINLIEST AND BE REALLY HAPPY
IF YOU DON'T ANSWER ALL THE QUESTIONS I WILL REPORT
I AM GIVING A LOT OF POINTS FOR THIS, SO I WANT THE BANG FOR MY BUCK
Answer:
How is hydrogen obtained and separated from other nearby substances?
photoelectrolysis, a photoelectrochemical cell submerged in water uses sunlight to separate the water into hydrogen and oxygen bubbles. In the thermochemical cycle, water is heated to 800 to 1,000 °C, with the molecule. splitting to release hydrogen. The main drawback of this method is that it requires nuclear power
How is Hydrogen used?
Hydrogen can be used in fuel cells to generate electricity, or power and heat. Today, hydrogen is most commonly used in petroleum refining and fertilizer production, while transportation and utilities are emerging markets
What products are made from Hydrogen?
Hydrogen is a very useful element. It is used to make ammonia for fertilizers, refining metals, and methanol for making artificial material like plastics. Hydrogen is also used as a rocket fuel where liquid hydrogen is combined with liquid oxygen to produce a powerful explosion.
Any environmental concerns about the use of Hydrogen?
Emissions of hydrogen lead to increased burdens of methane and ozone and hence to an increase in global warming. Therefore, hydrogen can be considered as an indirect greenhouse gas with the potential to increase global warming.
Calculate that object's net displacement over the time shown.
a. 540 m
b. 2,520 m
c. 2,790 m
d. 5,040 m
Answer:
c
Explanation:
im sorry if im wrong
mark me as brainlist please thank you
A certain cubed object has a side of 76cm3 and a density of .76g/cm3, what is its mass? *
5776g
57.76g/cm3
100g
0.01
Mass = density x volume
Mass = 76 x 0.76 = 57.76
Answer: 57.76g/cm3
Answer:
5776
Explanation:
help me please!
The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?(1 point)
A. The velocity is zero.
B. The acceleration is constant and non-zero.
C. The velocity is constant and non-zero.
D. The acceleration is negative.
Answer:
Explanation:
1.) Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In each trial of the experiment, the students will apply a net force on the object. They also need to take two other measurements. What are the other quantities they should measure in each trial of the experiment?
ANSWER: mass and acceleration
2.) Use the data table to answer the question. It shows the acceleration of a body when a net force is applied to it.
Net force (N) Mass (kg) Acceleration (m/s2)
5.0 5.0 1.0
10.0 5.0 2.0
20.0 5.0
Which value would complete the last cell?
ANSWER: 4.0
3.) Which statement makes an accurate comparison of the motions for objects C and D?
ANSWER: Object C has an acceleration that is greater than the acceleration for D.
4.) Use the equation for motion to answer the question.
x=x0+v0t+12at2
An object has a starting position of 2 m, a starting velocity of 15 m/s, and is moving at a constant speed. Which option shows the final position of the object after 1 s?
ANSWER: 17 m
5.) The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?
ANSWER: The velocity is zero.
hope this helps <3
As the graph shows, position over time is a horizontal line and y is not equal to 0 then the velocity is zero. Hence, option A is correct.
What is Acceleration?Acceleration is the rate at which the speed and orientation of a moving object change over time. When a spot or object moves faster or slower along a straight line, it is said to be accelerated. Even though the speed is constant, motion on a circle accelerates so because the direction is always shifting. Both by and to acceleration for all other types of motion.
It is a vector quantity because it has both magnitude and direction.
If the graph of an object's position over time is a horizontal line also y is not equal to 0 then it means that the velocity is zero, it cannot be constant or non-zero.
Therefore, it concludes that the velocity is zero and option A is correct.
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Obtain Center of Mass:
Obtain the center of mass of an axis of a thin wire with a curve defined by [tex]y=f(x)=x^{3/2}[/tex] from x=0 to x=1 and a lineal density of mass of [tex]p(x)=x^{2}[/tex]
Hi there!
To find the center of mass:
[tex]com = \frac{1}{m}\int\ {rdm}[/tex]
We can begin by changing "dm" into an available quantity by expressing the lineal density as a function:
[tex]\lambda = x^2 = \frac{m}{x}\\\\x^2 = \frac{m}{x}\\\\x^3 = m \\\\[/tex]
Differentiate both sides:
[tex]3x^2dx = dm[/tex]
Let:
[tex]r = f(x) = x^{3/2}[/tex]
Thus:
[tex]com = \frac{1}{m} \int x^{3/2}3x^2dx\\\\com = \frac{1}{m} \int }3x^{7/2}dx\\[/tex]
Evaluate:
[tex]com = \frac{1}{m} \frac{2}{3}x^{9/2}\left \| {{1 \atop {0}} \right.[/tex]
We found 'm' above, so plug the expression in:
[tex]com = \frac{1}{x^3} \frac{2}{3}x^{9/2}\left \| {{1 \atop {0}} \right. \\\\com = \frac{1}{x^3} \frac{2}{3}x^{9/2}\left \| {{1 \atop {0}} \right. \\\\com = \frac{2}{3}x^{3/2}\left \| {{1 \atop {0}} \right. = \boxed{\frac{2}{3}}[/tex]
Which statement is true about all liquids? (1 point) O They can change in volume and shape. They keep their volume but can change shape O They keep their shape but can change volume. O They keep their shape and volume
The second statement is true about liquids i.e. they keep their volume but can change shape.
The volume retention and conformity to the shape of a liquid's container are two of its most noticeable physical characteristics. When a liquid substance is poured into a container, it conforms to the shape of the container and will stay inside the container so long as the liquid state persists.Liquids do not have a set shape, only a fixed volume.You can compress liquids but to compress them, a lot of pressure is needed.Compared to solids, liquids have lower densities.The attraction between molecules is weaker than that between solids.There is a lot of room between the particles.To know more about liquid
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What is the melting pont of a champurrado?
Answer:
Well If the unknown is one of four possible compounds which melt at 102, 104, 106, and 108° C, it is most likely that which melts at 108° C. To summarize, an impure solid melts over a wide range and at a temperature lower than that of the pure solid.
Explanation:
I have known this since grade school
For anyone taking the Velocity and Acceleration Quick Check, Here are the answer.s!
1. Question: Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In each trial of the experiment, the students will apply a net force on the object. They also need to take two other measurements. What are the other quantities they should measure in each trial of the experiment?
1. Answer: mass and acceleration
2. Question: Which statement makes an accurate comparison of the motions for objects C and D?
2. Answer: Object C has an acceleration that is greater than the acceleration for D.
3. Question: An object has a starting position of 2 m, a starting velocity of 15 m/s, and is moving at a constant speed. Which option shows the final position of the object after 1 s?
3. Answer: 17 m
4. Question: The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?
4. Answer: The velocity is zero.
Hope this helps anyone!!
Answer:
this is 100% correct
Explanation:
All good if you have 4 questions.
1. Mass and Acceleration
2. Object C has an acceleration that is greater than the acceleration for D.
3. 17 m
4. The velocity is zero.
OR...if you have 5 questions...
1. Mass and Acceleration
2. 4.0
3. Object C has an acceleration that is greater than the acceleration for D.
4. 17 m
5. The velocity is zero.
Hope this helps!
What type of reflection would you get from a rough surface?
Why would a train need more than one locomotive? Apply forces and net forces to explain what problems might be solved by adding locomotives to a train.
The more the number of locomotives in the train the greater the net force supplied to move the train forward.
A train is used for transportation on land. A train consists of a locomotive engine which provides the forward force which the train requires to move from place to place.
The more locomotives, the more power is provided to pull the train forward thereby providing a greater net force that moves the train in the forward direction.
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