A makeshift sign hangs by a wire that is extended over an ideal pulley and is wrapped around a large potted plant on the
roof as shown in the figure below. When first set up by the shopkeeper on a sunny and dry day, the sign and the pot are in
equilibrium. The mass of the sign is 27.5 kg, and the mass of the potted plant is 67.5 kg.
Plant
sale
today!
(a) Assuming the objects are in equilibrium, determine the magnitude of the static friction force experienced by the
potted plant.
N
(b) What is the maximum value of the static friction force if the coefficient of static friction between the pot and the
roof is 0.707?
N
Answers
Answer:I know the answer for B cus I’m doing the same problem. For B, you would only take the coefficient of friction given and then multiply it by the Normal Force, which in this case is the same as the Gravitational Force.
Explanation:
Related Questions
Brainlist!! Help!! Atom A consists of 10 protons, 12 neutrons, and 10 electrons.
Atom B consists of 10 protons, 10 neutrons, and 12 electrons.
The atoms are isotopes of each other.
The atoms are not isotopes of each other.
Answers
Atom A has 10 protons, 12 neutrons, and 10 electrons, while Atom B has 10 protons, 10 neutrons, and 12 electrons.
Atom A and Atom B are not isotopes of each other. Isotopes are atoms of the same element that differ in the number of neutrons but have the same number of protons. In this case, Atom A and Atom B have different numbers of protons, which means they are not isotopes of each other.
The number of protons determines the element, and since Atom A and Atom B have different numbers of protons, they belong to different elements.
Isotopes, on the other hand, have the same number of protons but differ in the number of neutrons.
This variation in the number of neutrons gives isotopes different atomic masses while retaining the same chemical properties.
However, Atom A and Atom B do not fulfill this criterion, so they cannot be considered isotopes of each other.
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symbol of science hhshsjsiwtwwisjzhJava
Answers
Answer:
is this a company name.? java is a computer software right..
Order the substances from least dense at the top (1) to most dense at
the bottom (5).
Carbon
dioxide
Lead
Water
Helium
Gold
1
O
O
O
O
2
O
O
O
O
3
O
O
O
4
O
O
O
O
O
*
50 puntos
5
O
O
O
O
Answers
The most denser among the given materials is gold and the least dense one is helium. The order of density from least to most dense is helium, carbon dioxide, water, lead and gold.
What is density?Density of a substance is the measure of its mass per unit volume. It describes how closely packed its particles. density depends on the bond type, temperature and pressure.
The density of helium is very low and it is the lightest element after hydrogen. It density is about 0.00017 g/ml. Density of carbon dioxide is 0.0019 g/ml and the density of water is 1 g/ml.
Gold is a denser metal and its density is about 19.3 g/ml and that of lead is 11.3 g/ml. Hence, the order of density from least to most dense is He < carbon dioxide< water< lead < gold.
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What is Moral subjectivism?
Answers
Answer:
What Is Moral Subjectivism? Moral subjectivism is based on an individual person's perspective of what is right or wrong. An individual can decide for themselves that they approve or disapprove of a certain behavior, and that is what determines if the behavior is right or wrong.
Please help me ASAP!!
Answers
Answer:
the ball lose kentic energy and gains potential energy rolling upward
Answer:
c
Explanation:
when a ball is rolling down it loses potential and gains kinetic, but in this case since the ball is going upwards it is losing kinetic energy and gaining potentail like a roller coaser
What is true about point M and point N on this coordinate plane?
Answers
Given,
The coordinate plane with two points M and N.
The coordinates of the point N is (7,2)
The coordinates of point M is (7,-3)
From the figure, point N is in the 1st quadrant and point M is in the 4th quadrant. Thus 1st option is not correct.
The y-coordinate of point N is 2 and that of point M is -3. Thus option 3 is not correct either.
The c-coordinate of the point N is 7 and that of M is 7 too.
Thus the correct answer is option 2
A Motorcycle Jump. You are planning to make a jump with your motorcycle by driving over a ramp that will launch you at an angle of 30.0° with respect to the horizontal. The front edge of the ramp on which you are supposed to land, however, is 25.0 ft lower than the edge of the launch ramp (i.e., your launch height).
(a) Assuming a launch speed of 55.0 mph, at what horizontal distance from your launch point should the landing ramp be placed?
(b) In order to land smoothly, the angle of the landing ramp should match the direction of your velocity vector when you touch down. What should be the angle of the landing ramp?
Answers
a. the landing ramp should be placed at 276.298 ft horizontally from the launch point.
(b) the angle of the landing ramp is 30°.
How do we calculate?(a)
Launch speed = 55.0 mph * (1.467 ft/s)
= 80.685 ft/s
Horizontal distance = Launch speed * Time of flight
Vertical velocity = Launch speed * sin(30.0°)
Time to reach maximum height = Vertical velocity / g
Vertical distance = (1/2) *g * t²
and Time = √(2 * Vertical distance / g)
Total time of flight = 2 * Time to reach maximum height + Time for descent
Horizontal distance = Launch speed * Total time of flight
The Vertical velocity = 80.685 ft/s * sin(30.0°)
= 40.3425 ft/s
Time to reach maximum height = 40.3425 ft/s / 32.2 ft/s²
Time to reach maximum height = 1.253 s
Time of descent = √(2 * 25.0 ft / 32.2 ft/s²)
Time of descent = 0.913 s
Total time of flight = 2 * 1.253 s + 0.913 s
Total time of flight = 3.419 s
In conclusion, the horizontal distance = 80.685 ft/s * 3.419 s
horizontal distance = 276.298 ft
b.
the angle of the landing ramp is 30.0 be the same as the launch angle.
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2 coplas o pregones inventadas por ti relacionadas con la región caribe.
Answers
a roller coaster weighs 2000 kg This ride includes an initial vertical drop of 59.3 m.
Assume that the roller coaster has a speed of nearly zero as it crests the top of the hill.
If the track was frictionless, find the speed of the roller coaster at the bottom of
the hill.
Answers
The speed of the roller coaster at the bottom of the hill if the track was frictionless is 34.04 m/s.
Given that the weight of the roller coaster is 2000 kg and the initial vertical drop of the ride is 59.3 m. We are to find the speed of the roller coaster at the bottom of the hill if the track was frictionless.We know that the roller coaster will lose potential energy due to the vertical drop. Assuming there is no friction, the potential energy will be converted into kinetic energy at the bottom of the hill.Considering the conservation of energy between the potential and kinetic energy, we can set the initial potential energy equal to the final kinetic energy. We can use the formula to calculate potential energy, which is PE = mgh where m = 2000 kg, g = 9.8 m/s², and h = 59.3 m. Therefore,PE = 2000 kg × 9.8 m/s² × 59.3 m = 1,157,924 JWe can use the formula to calculate kinetic energy, which is KE = 1/2mv² where m = 2000 kg and v is the final velocity. Therefore,KE = 1/2 × 2000 kg × v².The total energy remains constant as we know there is no friction. Therefore the final kinetic energy will be equal to the initial potential energy,1,157,924 J = 1/2 × 2000 kg × v²v² = (2 × 1,157,924 J) / 2000 kgv² = 1157.924v = √1157.924v = 34.04 m/s.
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Match the measurements with the proper SI unit.
Acceleration:
A. Meters
B. Meters per second
C. Meters per second squared
Velocity:
A. Meters
B. Meters per second
C. Meters per second squared
Distance:
A. Meters
B. Meters per second
C. Meters per second squared
Answers
Explanation:
C. meter per second squared
B. meter per second
A. meter
Answer:
b. meters per second
c.meters per second squared
c.meters
Explanation:
ginawa ko na rin KC toh
A light bulb is shown below, shining into a concave mirror, with its original light lines visible. Which statement best explains why the image of the bulb appears behind the mirror, as shown? .
A. The original light comes from there.
B. The reflected light comes from there.
C. The original light appears to come from there. This is often indicated with dotted apparent light lines.
D. The reflected light appears to come from there. This is often indicated with dotted apparent light lines.
Answers
Answer:
the answer is c
Explanation:
see the light appears from there and with the dotted lines you can clearly see the green line touches the dot okay, then the light appears smaller because of water and light source
A block of mass 10 kg on a 30° inclined plane is being pushed by a horizontal force F as shown in the figure below. Find: 1) II) iii) the time it takes to move the block up the incline by a distance of 2 m, if the block starts from rest and the surface of the inclined plane is smooth and F = 100 N. [5] the horizontal force needed to move the block 2 m up the incline in a time of 1 s, if the surface is rough with coefficient of kinetic friction of 0.2 between it and the block and the block starts from rest. [8] the time the block will take to reach a speed of 5 ms¹ starting from rest at the top when the force F is removed and the surface is smooth. [7] F=100N 10 kg 30
Answers
The diagram and specific values for angle, mass, and force are missing from the question, making it difficult to provide exact numerical solutions. However, the provided solution approach should help you solve the problem once you have the necessary values.
To solve the given problems, we need to use principles of Newton's laws of motion and the equations of motion. Here are the solutions to each part:
To find the time it takes to move the block up the incline by a distance of 2 m, we need to consider the forces acting on the block. The force component acting parallel to the incline is F_parallel = F * sin(30°). The force component perpendicular to the incline is F_perpendicular = F * cos(30°). The net force acting up the incline is F_net = F_parallel - frictional force.
Using Newton's second law, F_net = m * a, we can calculate the acceleration of the block. Then, we can use the equation of motion, d = v_i * t + (1/2) * a * t^2, where d is the distance (2 m) and v_i is the initial velocity (0 m/s) to solve for time (t).
To find the horizontal force needed to move the block 2 m up the incline in 1 second, considering a rough surface with a coefficient of kinetic friction (μ = 0.2), we need to calculate the frictional force. The frictional force can be determined as F_friction = μ * N, where N is the normal force. The normal force can be found as N = m * g * cos(30°). Then, we can find the net force acting up the incline as F_net = F - F_friction and use the same approach as in part 1 to find the required force.
To find the time it takes for the block to reach a speed of 5 m/s starting from rest at the top, when the force F is removed and the surface is smooth, we need to use the equation of motion, v_f = v_i + a * t, where v_f is the final velocity (5 m/s), v_i is the initial velocity (0 m/s), and a is the acceleration due to gravity (g). Rearranging the equation, we can solve for time (t).
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Define each of the three heat transfer methods:
Conduction
Convection
Radiation
Answers
convection- is like when water is moving it gets all the water hot
Radiation- is when heat is transferred through the air like a campfire.
Hope this helps
during a baseball game you are running home and slide into home plate. However you come up short and you are tagged out. Which force stops you from sliding all the way home? a friction b gravity c pull d push
Answers
Answer:1 because
Explanation: it’s pointing to the earth and gravity
Pulls things down to earth
is it second or first law
Answers
Answer:
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration.
Explanation:
What has to happen to make new elements?
Answers
A chemical change means a new substance with new properties was
formed.
True
False
Answers
Answer:
False
Explanation:
The 7.4 N weight is in equilibrium under
the influence of the three forces acting on it.
The F force acts from above on the left at
an angle of a with the horizontal. The 5.9 N
force acts from above on the right at an angle
of 44° with the horizontal. The force 7.4 N
acts straight down.
Ĵ
44°
5.9 N
7.4 N
What is the magnitude of the force F?
Answer in units of N.
part 2 of 2
What is the angle a of the force F as shown
in the figure?
Answers
a) Magnitude of force is 5.37N
b) Angle of force is - 37.88°
What is force?In physics, we define a force is an influence that can change the motion of object. A force can cause an object with mass to change to accelerate.
Given force from above is 5.9N
∑Fₓ = F₁ₓ + F₂ₓ+F₃ₓ = 0
F₂ cos 44° + Fₓ = 0
Fₓ = - 5.9 cos44°
= - 4.24 N
Given force that acts downward as 7.4N
∑Fy= Fy1+ Fy2 +Fy3 =0
Fy+ 5.9 sin 44° - 7.4= 0
F = 3.30 N
F =√Fₓ² +Fy²
= 5.37 N
b) angle of force= tan⁻¹ (3.30/-4.24)
= - 37.88°
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Four cuboids are shown in the diagram below. The position of their center of mass is also shown. Which of the cuboids is the most stable.
Answers
The position of their center of mass is also shown. the square cuboids is the most stable. Hence option B is correct.
A cuboid is a six-sided solid known as a hexahedron in geometry. Quadrilaterals make up its faces. Cuboid is short for "like a cube". A cuboid is similar to a cube in that a cuboid may become a cube by varying the lengths of the edges or the angles between the faces.
The square cuboid has its center of mass on the center of square, the masses are uniformly distributed about it.
Hence option B is correct.
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A 17-kg
piece of metal displaces 2.8 L
of water when submerged. what is its density?
Answers
Answer: Density = 6071.428571 kg/m³
Explanation: Given that mass m=17 kg
volume displaced v=2.8L
We know that
density = mass/volume
Here density=17kg/2.8L
Also 1L=1000m³ Hence
density=17kg/2.8×10⁻³m³
=6071.428571 kg/m³
a baseball leaves the bat at 76m/s, 57 degrees above the horizontal. how long is it in the air
Answers
So the time taken that the ball stays in the air was found to be 13 seconds.
what is a baseball used for ?
One of the most recognisable and crucial pieces of baseball equipment is the baseball. Every player on the field frequently uses baseballs, which are employed as the game's basic tool. There would be no game if there were no baseballs.
t = vsin∅/g
t = 76 sin 57/9.81
t = 76(0.8387)/9.81
t=63.741/9.81
t=6.497≈6.5
As the time taken for the ball for going up and down will be
2t=(6.5)2
=13
so the time that the ball stays in the air was found to be 13 seconds
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the efficiency of combine double pulley is 60 how much load is lifted using 50n effort
Answers
The amount of load lifted by the pulley when the efficiency is 60% and effort is 50 N is determined as 30 N.
What is the amount of load lifted?The amount of load lifted by the pulley is calculated by applying the formula for efficiency of a machine as follows;
E = L / E x 100%
where;
L is the load overcome or output workE is the effort applied or the input workThe amount of load lifted by the pulley is calculated as;
60 = L / 50 x 100%
60 = 100L / 50
100L = 50 x 60
100 L = 3000
L = 3000 / 100
L = 30 N
Thus, the amount of load lifted by the pulley is 30 N.
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An atom undergoes nuclear decay, but its atomic number is not changed.
What type of nuclear decay did the atom undergo?
A. Gamma decay
B. Beta decay
C. Nuclear fission
D. Alpha decay
Answers
Answer:
A. Gamma decay
Explanation:
A form of nuclear decay in which the atomic number is unchanged is a gamma decay.
The atom has undergone a gamma decay.
In a gamma decay, no changes occur to the mass and atomic number of the substance.
Gamma rays have zero atomic and mass numbers. When they cause decay, they cause no change to the mass and atomic numbers. They simply produce gamma rays during such reactions and these rays are very energetic.How do I find the mass in kg
Answers
To find the mass in kilograms, you need to know the object's weight in newtons and the acceleration due to gravity. The formula for finding mass is mass = weight / acceleration due to gravity. So if you have an object with a weight of 100 N and the acceleration due to gravity is 9.8 m/s^2, the mass would be 10.204 kg.
The mass of the block is 0.025 kg or 25 g, when the spring has k = 28 N/m, and compresses 0.11 m before bringing the block to rest.
When a block is dropped onto a spring with k=28 N/m, the block has a speed of 3.2 m/s just before it strikes the spring. If the spring compresses an amount of 0.11 m before bringing the block to rest, what is the mass of the block?The formula for the spring potential energy is given as follows; PE = (1/2) kx² where k is the spring constant and x is the amount of deformation of the spring. Substituting the values given;PE = (1/2) 28 (0.11)²PE = 0.16972 J. According to the law of conservation of energy, the potential energy stored in the spring at maximum compression is equal to the kinetic energy the block had before it struck the spring;KE = (1/2) mv²where m is the mass of the block and v is its velocity.Substituting the values;0.16972 = (1/2) m (3.2)²m = 0.025 kg or 25 gTherefore, the mass of the block is 0.025 kg or 25 g.For more questions on mass
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A candle is sitting in front of a concave mirror at a distance of 18.0 cm. It is found that an image of the ca
25.0 cm. What is the focal length of the mirror?
03.52 cm
07.50 cm
O 10.4 cm
022.1 cm
Answers
Answer:
The focal length of the mirror is 10.4 cm.
Explanation:
The object distance ( d₀ ) ( distance of the candle from the mirror) is -18 cm.The Image distance ( dᵢ ) ( distance of the image from the mirror) is -25.0 cm.The mirror equation is 1/f = 1/d₀ + 1/dᵢ.So substitute the values of object distance and image distance in the mirror equation,
1/f = 1/(-18cm) + 1/(-25.0cm)
1/f = -25cm/(-18cm x -25cm) - 18cm/(-18cm x 25cm)
1/f = ( -25cm - 18cm)/(18cm x 25cm)
1/f = -43.0/450.0
f = -10.4651 cm.
The focal length of the mirror is approximately -10.4 cm.
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define static electricity and ohms law
Answers
Answer:
Static electricity : is a familiar electric phenomenon in which charged particles are transferred from one body to another
Ohm's law : states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance
Which is most likely the reason parents and their children have similar physical traits? Responses They live in the same home. They have similar genetic structures. They are born in similar environments. They have similar blood types.
Answers
The most likely reason parents and their children have similar physical traits is that (b) they have similar genetic structures.
Physical traits are largely determined by genes, which are segments of DNA passed down from parents to their offspring. Genetic information contains instructions for the development of various physical characteristics, such as eye color, height, and facial features. Therefore, children inherit genetic variations from their parents that contribute to the similarities in their physical traits.
Genes are responsible for the transmission of hereditary traits, and variations in these genes can result in different physical appearances. Children receive half of their genetic material from their biological mother and the other half from their biological father, leading to a combination of genetic traits from both parents. This genetic inheritance process explains why children often share physical characteristics with their parents, such as hair color or body structure.
While living in the same home and being born in similar environments can influence certain aspects of physical traits, such as lifestyle choices or exposure to certain factors, these factors do not have as direct and significant an impact as genetic inheritance. They may contribute to some environmental influences, but genetic factors are the primary drivers of physical trait similarities between parents and their children.
The similarity in blood types between parents and children is a result of genetic inheritance as well. Blood type is determined by specific genes, and children inherit their blood type alleles from their parents. However, blood type alone does not account for the full range of physical traits shared between parents and children, as it is just one characteristic among many that are determined by genetics.
In summary, while living in the same home and being born in similar environments can have some influence, the primary reason parents and their children have similar physical traits is due to their shared genetic structures. Genetic inheritance is the key factor that determines the passing down of physical characteristics from one generation to the next.
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Based on the diagram, what is the difference in how economic decisions are made in a mixed economy and a market economy? E.1.2
How Economic Decisions are Made
By the Government,
command
economy
By the Consumers
mixed
economy
market.
economy
O Consumers make all economic decisions in a mixed economy, while the government makes all economic decisions in a market economy.
Government and consumers make economic decisions in a mixed economy, while consumers make economic decisions in a market economy.
Government makes all economic decisions in a mixed economy, while consumers make all economic decisions in a market economy.
O Consumers make economic decisions in a mixed economy, while consumers and government make economic decisions in a market economy.
Answers
Based on the diagram, the correct statement is: Government and consumers make economic decisions in a mixed economy, while consumers make economic decisions in a market economy.
How do we explain?In a mixed economy, economic decisions are made by both the government and consumers.
The government plays a significant role in regulating and influencing economic activities through policies, regulations, and interventions.
In market economy, economic decisions are primarily made by consumers. The market forces of supply and demand dictate the allocation of resources, production levels, and pricing.
The freedom to buy and sell whatever they choose is what ultimately determines how commodities and services are produced and distributed.
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What is momentum?.
.
.
.
Answers
The quantity of motion of a moving body, measured as a product of its mass and velocity.
What is velocity?The primary indicator of an object's position and speed is its velocity. It is the distance that an object travels in one unit of time. The displacement of the item in one unit of time is the definition of velocity.velocity is a term that describes the speed and direction of a point's motion.Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.To learn more about : Velocity
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Momentum is a vector quantity, meaning it has both magnitude and direction
The formula is p = mv where p = momentum, m = mass, and v = velocity
Electromagnetic radiation of a specific wavelength or energy is called
A. a photon
B. a speed
C. a threshold
D an optimal length
Answers
Electromagnetic radiation of a specific wavelength or energy is called a photon.
Electromagnetic radiation of a specific wavelength or energy is called a photon. A photon is a fundamental particle of light and is the smallest unit of electromagnetic radiation. It has no mass, but carries energy and momentum. Photons travel through space at the speed of light and can exhibit both wave-like and particle-like behaviors.The energy of a photon is directly proportional to its frequency or inversely proportional to its wavelength. This relationship is known as the Planck-Einstein equation and can be expressed as E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the radiation.When a photon interacts with matter, it can be absorbed, reflected, or scattered. The energy of the photon is transferred to the absorbing material, causing an excitation or ionization of the atoms or molecules. This process is the basis for many scientific techniques, such as spectroscopy, where the absorption or emission of photons by a material is used to identify its chemical composition and structure. Understanding the properties of photons and their interactions with matter is essential for many fields of science, including optics, physics, and chemistry.
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