oe and bill are playing tug- of- war. joe is pulling with a force of 200 n. bill is simply hanging on 180) to the rope. neither person is moving. what is the tension of the rope?
Answers
The tension of the rope is Static Equilibrium and tension on string is 200N.
What is Static Equilibrium?When all the forces that act upon an object are balanced, then the object is said to be in a state of equilibrium. The forces are considered to be balanced if the rightward forces are balanced by the leftward forces and the upward forces are balanced by the downward forces.
This however does not necessarily mean that all the forces are equal to each other. Consider the two objects pictured in the force diagram shown below. Note that the two objects are at equilibrium because the forces that act upon them are balanced; however, the individual forces are not equal to each other. The 50 N force is not equal to the 30 N force.
According to question:We have,
If no one is moving then,
Tension on string = 200 newton.
Thus, required tension on string is 200 N.
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Related Questions
What is the position and kind of image produced by the lens below?
Complete the ray diagram to support your answer.
Answers
a lifeguard picks up a chair and moves it from one side of the pool to the other, using 50 joules of work to lift the chair in 5 seconds. how much power did the lifeguard use to lift the chair?
Answers
The lifeguard used 10 watts of power to lift the chair.
What is power?Power is the ability to influence and control others or to influence the outcome of events. It is the capacity to make decisions and carry out actions that result in a desired outcome. Power is often seen as an advantage and can be used to bring about positive change. Power can also be abused and used in a negative way.
This was calculated by-
50 joules of work / 5 seconds = 10 watts.
This power is the rate at which the lifeguard was able to do work. It is the amount of energy that the lifeguard was able to transfer in order to move the chair from one side of the pool to the other.
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If a fish looks upward at 45 degrees with respect to the water's surface, it will see:
a. the sky and possibly some hills. b. another fish in the pond. c. the bottom of the pond. d. only the waters surface
Answers
If a fish looks upward at 45 degrees with respect to the water's surface, it will see option a, the sky and possibly some hills.
When a fish looks upward at a 45-degree angle with respect to the water's surface, it will see the sky and possibly some hills. This is because light rays refract when they pass from one medium to another with different optical densities.
As light travels from air to water, it slows down, and its path bends towards the normal, which is perpendicular to the water's surface. This bending of light is called refraction. When the fish looks upwards, it sees the light that has been refracted by the water, and this light carries information about the sky and the surrounding landscape.
However, the amount of refraction depends on the angle of incidence of the light ray, so the fish will not see the entire sky but only a portion of it. At a 45-degree angle, the fish will see a wider view of the sky and possibly some hills, depending on the surrounding topography. Therefore, the fish will not see the bottom of the pond, which is below its line of sight.
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Please help me as fast as possible
What is the geologic time scale is and how it is used?
Describe the concept of using radioactive elements to establish the age for a fossil, including how the parent and daughter elements are used in the determination of age?
List two examples of measurements of time that are relative?
List two examples of measurements of time that are absolute?
Describe the conditions on Earth billions of years ago and the factors that controlled the evolution of life?
Answers
There was no oxygen and layer of ozone in the atmosphere of earth billions of year ago.
What is the geologic time scale?The geologic time scale is a “calendar” that show events that occur in Earth history. It is used by geologists and other Earth scientists in order to describe the timing and relationships of events in geologic history.
Describe the concept of using radioactive elements?Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon as reliable clocks in order to date ancient events.
Describe the conditions on Earth billions of years ago?The early Earth had no ozone layer and no free oxygen. Without an oxygen atmosphere very few things could live on the early Earth which did not need oxygen for their survival.
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The kinetic energy of a bullet fired from a gun is 40j. If the mass of the bullet is 0.1kg, calculate the initial speed of the bullet
Answers
Answer:
KE = 1/2 M V^2
V = (2 KE / M)^1/2 = (2 * 40 / .1)^1/2 = 28.3 m/s
How can water cause the loss
of soil from bare farm fields on slopes?
How can this erosion be prevented?
Answers
Answer:
Soil erosion by water occurs when bare-sloped soil surface is exposed to rainfall, and the rainfall intensity exceeds the rate of soil intake, or infiltration rate, leading to soil-surface runoff.
Explanation:
Surface cover and runoff. Surface cover is a major factor to control erosion because it reduces the impact of raindrops falling on bare soils and wind removing soil particles. It also reduces the speed of water flowing over the land. Erosion risk is significantly reduced when there is more than 30% soil cover.
Answer:
by natural process of flood
by blasting of dam
increasing the water level
breadth of the widest part of a wedge is 8cm and its length 20 cm by the application of the effort pf 400N on the widest part it resist the force of 800 N inside a wooden block . Calculate its velocity ratio
Answers
The application of the effort pf 400N on the widest part it resist the force of 800 N inside a wooden block the velocity ratio of the wedge is 4.
We know the effort and resistance forces, so we can solve for the distance moved by each force:
Distance moved by effort = (Resistance x distance moved by resistance) ÷ Effort
Distance moved by effort = (800 N x 8 cm) ÷ 400 N
Distance moved by effort = 16 cm
Distance moved by resistance = length of wedge - distance moved by effort
Distance moved by resistance = 20 cm - 16 cm
Distance moved by resistance = 4 cm
Now we can plug these distances into the formula for the velocity ratio:
Velocity ratio = distance moved by effort ÷ distance moved by resistance
Velocity ratio = 16 cm ÷ 4 cm
Velocity ratio = 4
Velocity ratio is a term used in mechanics and is defined as the ratio of the distance traveled by the effort to the distance traveled by the load in a machine. It is a fundamental concept that is used to determine the mechanical advantage of a simple machine. The velocity ratio is essential in understanding how a machine works and how it can be used to make work easier.
The velocity ratio is an important factor in the efficiency of a machine. A higher velocity ratio means that the load can be moved with less effort, resulting in a higher mechanical advantage. Therefore, machines with a high velocity ratio are considered to be more efficient and can be used to perform work more easily. Understanding the concept of velocity ratio is important in designing and operating machines, especially in situations where work needs to be done with minimal effort.
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A traffic light could be suspended from a rigid horizontal beam, as shown. Let P be a pivot, so the beam can be raised and lowered. Then a strong cable is required to keep the traffic light in equilibrium when the beam is horizontal. Calculate the tension force in the cable.
M= mass of the traffic light = 105 kg (mass of the beam = 0kg)
L= length of the beam = 6.2 m
d= distance from P to the of the vertical pole = 1.8 m
Answers
The tension force in the cable is approximately 1773.82 N.
To calculate the tension force in the cable, we can use the principle of moments. Moments are the rotational force acting on an object, and when an object is in equilibrium, the sum of the clockwise moments equals the sum of the counter-clockwise moments.
First, let's find the gravitational force acting on the traffic light:
Fg = mass x gravity = 105 kg x 9.81 m/s² = 1030.05 N (approximately)
Now, let's consider the moments about point P. There are two forces acting on the beam: the gravitational force of the traffic light and the tension force in the cable. The gravitational force acts downward at the midpoint of the beam (L/2) and the tension force acts upward at the end of the beam (L).
The moment due to the gravitational force (Fg) is counter-clockwise, and the moment due to the tension force (T) is clockwise. To find the tension force, we will equate the moments:
Fg x (L/2) = T x d
We know Fg, L, and d, so we can plug in the values:
1030.05 N x (6.2 m / 2) = T x 1.8 m
Solving for T, we get:
T = (1030.05 N x 3.1 m) / 1.8 m = 1773.82 N (approximately)
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Read and analyze the situation below and solve for the unknown values.
Follow the GRESA pattern in solving the problem.
G- given
R- required
E- equation
S- solution
A- answer
Answers
(1) The initial velocity of the ball is 7.8 m/s.
(2a) The time of motion of the baseball is 6.5 seconds.
(2b) The horizontal distance traveled by the baseball is 206.8 m.
(3) The height of fall of the bullet before hitting the target is 0.078 m.
Initial velocity of the ball
The given parameters include;
height reached by the ball, h = 8 mhorizontal distance of the ball, x = 10 mh = Vyt + ¹/₂gt²
where;
Vy is initial vertical velocity = 0h = 0 + ¹/₂gt²
t = √(2h/g)
t = √(2 x 8)/9.8
t = 1.28 s
x = Vxt
Vx = x/t
Vx = 10/1.28
Vx = 7.8 m/s
Time of motion of the base ballThe given parameters include;
initial velocity, u = 45 m/sangle of projection, θ = 45⁰\(T = \frac{2u \times sin(\theta)}{g} \\\\T = \frac{2 (45) \times sin(45)}{9.8} \\\\T = 6.5 \ s\)
Horizontal distance of the base ballx = Vxt
x = (ucosθ)t
x = (45 cos(45)) x (6.5)
x = 206.8 m
Height reached by the bulletThe given parameters include;
horizontal velocity of the bullet, Vx = 800 m/sHorizontal distance of the bullet, x = 100 mx = Vxt
t = x/Vx
t = 100/800
t = 0.125 s
h = ¹/₂gt²
h = ¹/₂(9.8)(0.125)²
h = 0.078 m
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2. Answer the questions about circuits with LEDs. (Remember that LEDs only work in one direction.)
a. Two of the following circuits would work to light up the LED and two would not. Identify and
explain which circuit plans will work and which will not.
Answers
The following circuits will work to light up the LED; Circuit A and Circuit B and Circuit C and D will not work.
Why would the circuits work?Circuit A: The LED is connected to the positive terminal of the battery and the negative terminal of the battery through a resistor. The resistor limits the current flowing through the LED, preventing it from being damaged.
Circuit B: The LED is connected to the positive terminal of the battery and the negative terminal of the battery through a switch. When the switch is closed, current flows through the LED and it lights up.
Circuit C: The LED is connected to the positive terminal of the battery and the positive terminal of the battery through a resistor. The LED will not light up because there is no current flowing through it.
Circuit D: The LED is connected to the negative terminal of the battery and the negative terminal of the battery through a resistor. The LED will not light up because there is no current flowing through it.
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A forensics investigator discharged an assault rifle-replica such that the bullet fired at an angle of 30 (degrees) off the horizontal with an initial velocity
of 28
m/s northwest. What is the maximum height the bullet will reach?
O 14 m/s
10 m
O 30 km
O 0.4351 seconds
Answers
Answer:
Initial y-component of speed
Vy = 28 * sin 30 = 14 m/sec vertically
1/2 m Vy^2 = 2 m g h conservation of energy of y-component
h = Vy^2 / (2 * g) = 14^2 / (2 * 9.8) = 10 m
a girl stands 1.5 m in front of a plane mirror, what is the distance of her image,and what are four image characteristics
Answers
Answer:
the distance to the image is 1.5 m
Explanation:
To find the position of the image let's use the equation of the constructor
\(\frac{1}{f} = \frac{1}{p} + \frac{1}{q}\)
where p and q are the distance to the object and the image, respectively, and f is the focal length.
In this case a plane mirror has a focal length at infinity, if we substitute in the equation
1 / p = - 1 / q
q = -p
therefore the distance to the image is 1.5 m
this image has some characteristics:
* It is a virtual image, this means that light rays do not pass through it
* It is a right image, that is, the image is in the same direction of the object.
* the magnification is 1, since the height of the image and the object are the same
* has the right - left direction reversed
Through the process of blank
, old, dense crust is pushed toward a deep-ocean blank
. There, it sinks under lighter crust. It returns to molten rock, becoming part of the
again.
Answers
Answer:
Subduction, Trench, Mantle
Explanation:
Answer: subduction, trench, and mantle
Explanation:
A physics student is adjusting the settings of their projectile launcher. If the Vx =
28 m/s and the Vy = 15 m/s, what is the magnitude of its velocity?
32 m/s
13 m/s
43 m/s
1009 m/s
Answers
Answer:
32m/s
Explanation:
obtained from V=vx square roo+ vy square root but all terms are squared.
which of these galaxies is most likely to be the oldest? (a) a galaxy in the local group (b) a galaxy observed at a distance of 5 billion light-years (c) a galaxy observed at a distance of 10 billion light-years
Answers
A galaxy in the local group is most likely to be the oldest.
How many light years old is the cosmos?As a result, the cosmos is estimated to be around 25 billion light years across. In 1958, Alan Sandage reduced the Hubble's constant value once more, but he still came up with an age range for the universe between 15 and 25 billion years.It is exactly because of the expanding cosmos that we can see things that are up to 46.1 billion light-years away. There will always be restrictions on the items we can view and the objects we might be able to access, regardless of how much time passes.Our own Milky Way galaxy, according to astronomers, is 13.6 billion years old. The most recent galaxy that we are aware of originated about 500 million years ago.To learn more about galaxy refer to:
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You are asked to make a drawing of a magnet showing its field lines. A magnet's field lines always
begin near the magnet's ______ and end near the ________
A. Center, center
B. North pole, South Pole
C. South pole, center.
D. South pole, north pole.
hogy
Answers
Answer:
B. North pole, south pole
HELPPPPP
Find an article about recent findings in physics from a reputable source. A quick Internet search can help you find good sources for physics-related articles. If you're unsure about the validity of your source, consult your teacher.
After you've read your article, complete the following in a post on this page:
Summarize it in 1-2 paragraphs.
In an additional paragraph, discuss any evidence presented in the article. Use the following questions to help guide you:
What, if anything, does this evidence support? Is it relevant to the author's main idea(s)?
Is a claim made or a position taken on a scientific issue? If so, to what degree does the evidence and reasoning in the text support that claim?
Cite your source.
Answers
Answer: hope this helps
wrote this last year
Explanation:
Why it is important to study the universe
There are many reasons why it is important to study the universe, such as we would know nothing about zodiac signs, planets, why and how the dinosaurs died. The universe is an interesting place, and so much of it hasn't been explored. NASA (National aeronautics and space administration) is an agency that is responsible for development and research of vehicles and activities in space.
The eight planets in your solar system are:
Jupiter~ named after Zeus the king of the gods.
Mars~ Named after the Roman god of war.
Uranus~ named after the Greek god of the sky ( Zeus. )
Mercury~ named after the Roman messenger god.
Venus~ named after the Roman goddess of love and beauty.
Saturn~ named after the Roman god of agriculture and wealth.
Earth~ is the only planet not named after anybody but its nickname is “the blue planet”
Now if we did not study the universe then how would we know all of that? The universe is a BIG place and we are like Preons ( particles that are the building block to Quarks, Quarks are the particles in protons and neutrons ) compared to the universe.
Did you know that they have discovered an ocean on Jupiter? The ocean on Jupiter is 11 kilometer deep. It has also been discovered that it rains diamonds on Jupiter and Saturn. One thing about the universe that is interesting to me is our moon, the moon comes in many colors such as:
Blue moon
Pink moon
Red moon
Yellow moon
Orange moon
There is also different types of solar eclipse:
Total eclipse~
Partial eclipse~
Annular eclipse~
The moon also has different phases as well:
Waning crescent
Third quarter
Waning gibbous
FULL MOON
Waxing gibbous
First quarter
Waxing crescent
Here is a fun fact about the moon, the moon is neither a star nor a planet, it is a satellite object. The first man on the moon was Neil Armstrong, and he was a part of Apollo 11, and Gemini 8. One of my favorite quotes from him is “ Mystery creates wonder and wonder is the basis of man’s desire to understand.” Did you know that if you go to Death Valley, CA you can see the milky way from earth. One of the things I love about the universe is that it is full of mysteries. Lots of things we don't know about the earth and there are a lot of things we would not know if we didn't study the universe. Zodiac signs are the groups we put everyone in. These groups we are put in are deciphered by what month we are born in. The zodiac signs are what groups we are in according to the universe.
A man is pushing a heavy crate up an inclined plane into the back of semi trailer.What can the man do to make it easier to get the crate up the ramp
Answers
Answer:
B) Make the ramp longer
Explanation:
A machine is a device that makes work more easier and faster. A machine also saves time.
A ramp is a simple machine that is used to lift heavy object with a force that is lesser than the actually force needed. A ramp is in the shape of an inclined plane, which makes pushing an object easier than the required force needed.
The formula for a ramp is given by:
Force needed to push * length of the ramp = weight of object * height of ramp.
Force needed to push = (weight of object * height of ramp) / length of ramp
We can see that the force needed is inversely proportional to the ramp length. Hence for a ramp with longer length you need lesser force to raise the object.
Use Newton's third law to construct an argument that the net force is the same everywhere along the entire rope
Answers
Explanation:
Newton's third law states that " Every action has an equal and opposite reaction ".
Since, the Tension force acting on the rope is same.
So, the net force is the same everywhere along the entire rope.
Use Newton's third law to construct an argument that the net force is the same everywhere along the entire rope. The argument is tension force acting on the rope is same so net force is same.
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.
Newton's third law states that " Every action has an equal and opposite reaction ".
Since, the Tension force acting on the rope is same.
So, the net force is the same everywhere along the entire rope.
The argument is tension force acting on the rope is same so net force is same.
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A stone is thrown straight upward and reaches a maximum height of 32.3 m above itslaunch point. What was the initial speed with which the stone was thrown upwards?Answer:m/s
Answers
The initial speed = 25.16 m/s
Explanation:The maximum height, H = 32.3 m
The initial speed, u = ?
The formula for the maximum height of a projectile is:
\(H=\frac{u^2}{2g}\)Substitute H = 32.3m and g = 9.8 m/s² into the formula and solve for u
\(\begin{gathered} 32.3=\frac{u^2}{2(9.8)} \\ \\ u^2=32.3(2)(9.8) \\ \\ u^2=633.08 \\ \\ u=\sqrt{633.08} \\ \\ u=25.16\text{ m/s} \end{gathered}\)The initial speed = 25.16 m/s
Which data set has the smallest standard deviation?
A. 55, 90, 34, 78, 15, 20, 19
B. 1000, 1001, 1002, 1000, 1001, 1001
C. 1, 9, 120, 9, 1, 1, 9
D. 7, 8, 89, 1005, 23400, 5, 3
Answers
each graduation on the beam of a vernier caliper is equal to
Answers
The graduation on the beam of a vernier caliper is typically in millimeters or inches and represents the length measurement on the object being measured. However, the key feature of a vernier caliper is its ability to provide precise measurements beyond the smallest unit of graduation.
The vernier caliper works by using a sliding scale, called the vernier scale, which is positioned parallel to the main scale or beam. The vernier scale has a number of graduations that are slightly shorter or longer than the graduations on the main scale. These graduations are spaced so that they correspond with a certain fraction of the smallest graduation on the main scale.
When the vernier scale is positioned so that its graduations align with the main scale graduations, the length measurement is determined by adding the length indicated by the main scale to the length indicated by the vernier scale. The difference between the lengths indicated by the main scale and the vernier scale is equal to the length of one vernier scale graduation.
Therefore, the length of one graduation on the beam of a vernier caliper depends on the smallest graduation of the main scale and the number of graduations on the vernier scale. In general, the length of one vernier scale graduation is equal to the smallest graduation on the main scale divided by the number of graduations on the vernier scale.
For example, if the smallest graduation on the main scale is 1 millimeter and there are 10 graduations on the vernier scale, then the length of one vernier scale graduation is 0.1 millimeters (1/10th of 1 millimeter).
In summary, the length of one graduation on the beam of a vernier caliper depends on the smallest graduation of the main scale and the number of graduations on the vernier scale. It can be calculated by dividing the smallest graduation on the main scale by the number of graduations on the vernier scale.
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The storage method used for radioactive wastes generated from fission nuclear reactors must be designed to last for how long?
A.months
B.years
C.centuries
D.weeks
Answers
Answer:
c centuries
Explanation:
Answer:
C: centuries
is correct
A student carried out an experiment adding different weights to a spring and recording the results. Look at the table of results. What force do you think would be needed to give the spring an extension of 25cm?
Answers
Answer:Add 2 more weights of equal weight
Explanation:
A cat with a mass of 5.00 kg pushes on a 25.0 kg desk with a force of 50.0N to jump off. What is the force on the desk?
Answers
Answer:
i dont know
Explanation:
Sorry and good luck
a train moves from a train station at 30meter per second after 5 seconds its cover the distance of 100 m and the acceleration is ten meters per second square find the speed
Answers
The speed of a train that moves from a train station at 30 meters per second after 5 seconds and covers a distance of 100 m with an acceleration of ten meters per second square would be 80 m/s.
Speed of a trainWe can use the equation of motion to solve for the final velocity of the train:
v = u + at
where:
v = final velocityu = initial velocity = 30 m/sa = acceleration = 10 m/s^2t = time = 5 sSubstituting the values, we get:
v = 30 + 10(5)
v = 80 m/s
Therefore, the speed of the train after 5 seconds is 80 m/s.
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In which of the following scenarios will the frequency decrease? Select all that apply. A. Speed decreases and wavelength remains constant. B. Speed remains constant and wavelength decreases. C. Speed increases by a factor of 2 and wavelength decreases by a factor of 0. 5. D. Speed decreases by a factor of 4 and wavelength increases by a factor of 2. E. Speed remains constant and wavelength increases
Answers
The option A is correct. When the speed of a wave remains constant and the wavelength of the wave increases, the frequency of the wave decreases.
The frequency is a measure of the number of waves that pass a point in a given period of time and the speed of a wave is inversely proportional to the frequency. As a result, when the speed of a wave decreases, the frequency of the wave decreases. When the wavelength of a wave decreases, the frequency of the wave increases. Therefore, option B is incorrect. When the speed of a wave increases by a factor of 2 and the wavelength of the wave decreases by a factor of 0.5, the frequency of the wave remains constant.
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What must happen for electricity to be useful in your home?
Answers
Answer:
current must flow and chemical energy must take place
Jasmine and her partner want to test to see if there is a relationship between how much of her solar panel is exposed to sunlight and how fast her solar car will move. She uses a piece of paper to cover the solar panel different amounts of her solar panel. The chart below shows the data she collected.
Which of the following is the best reason for Jasmine and her partner to take three (3) different trials for this experiment?
They had to fill out all of the lines on the chart.
They wanted at least 15 points to put on her graph.
Any one trial might have been done incorrectly.
The car didn’t work at first.
Answers
If a roller-coaster car has 40,000 J of gravitational potential energy when at rest on the top of a hill, how much kinetic energy does it have when it is ½ of the way down the hill?
Answers
=============================================
Work Shown:
PE = potential energy
KE = kinetic energy
m = mass
g = acceleration of gravity
h = height of the object
PE = m*g*h = 40,000 joules
---------
If the car is halfway down the hill, then that means the height of the car is h/2 instead of h
We can then say:
m*g*(h/2) = (m*g*h)/2 = (40,000)/2 = 20,000 J
is the amount of potential energy at this location. The amount of kinetic energy must be the remaining amount that adds to this, to get 40,000 J again.
Put another way: The 40,000 J of PE to start off with, when KE = 0, means we have a total energy of 40,000 J
---------
So,
PE+KE = total energy
PE+KE = 40,000 J
20,000 J + KE = 40,000 J
KE = (40,000 J) - (20,000 J)
KE = 20,000 J when the car is halfway down the hill.