An adventurer pulls a loaded sled with a mass of 56 kg along a horizontal meadow at a constant speed. The adventurer applies 260 N of force the rope and the angle of the rope between the sled and the adventurer is 55°. What is the coefficient of friction between the sled and the ground?
Answer:his tension is 262 N
Explanation:1) Call T the tension of the rope2) Split T into its horizontal and vertical components.3) Horizontal component of the tension, Tx = T cos(55°)4) Vertical component of the tension, Ty = T sin (55°)5) Force equilibrium in the vertical direcction:∑Fy = 0Ty + normal force - weight of the sled = 0Call N the normal forceTy + N - 56 kg * 9.8 m/s^2Ty + N = 56 kg * 9.8 m/s^2Ty + N = 548.8NT sin(55) + N = 548.8N6) Force equilibrium in the horizontal directionconstant velocity => ∑Fx = 0Tx - Fx = 0Tcos(55) - Fx = 07) Fx is the friction force.The friction force and the normal force are related by the kinetic friction coefficient.Call μk the friction coefficientFx = μk N=> Tcos(55) - μk N = 0Tcos(55) - 0.45N = 08) Solve the system of two equations:Eq (1) T sin(55) + N = 548.8Eq (2) T cos(55) - 0.45N = 0Eq(1) 0.819T + N = 548.8Eq(2) 0.574T - 0.45N = 0The solution of the system is T = 262.01 N and N = 334.21 NThen T ≈ 262N
What is the change in the momentum of a 1,600 kg car if its velocity goes
from 20 m/s to 0 m/s?
Answer:
1) 22,240kg m/s
2) 9.26
Explanation:
1) Mass × Velocity
2) 22,240 ÷ 2400
PLS ANSWER THERE IS A TIME LIMIT Which of the following would be the best at transferring thermal energy?
A. Styrofoam cup
B. Rubber floor mat
C. Iron radiator
D. Fiberglass insulation
WILL GIVE BRAINLIEST
Answer:
Iron radiator
Explanation:
iron is a metal
What is the elastic potential energy of a spring with a 80 N/m spring constant
that has been moved 0. 6 m from equilibrium?
Why is the moon’s gravitational force less than the earth’s gravitational force
Answer:
no idea
Explanation:
i have absolutely no idea
Yellow light (600 nm) passes
through a diffraction grating. Its first
order (m = 1) maximum occurs at
an angle of 21. 2°. What is the slit
separation d?
[?] x 10-6 m
HELP PLSS!!!
This question involves the concept of the grating equation.
The slit separation is "1.66 x 10⁻⁶ m".
Grating EquationThe grating equation is used to derive a relationship between the wavelength of the light falling on the grating and the slit separation for a given order and angle of diffraction. Mathematically, the grating equation is written as follows:
[tex]m\lambda = dSin\theta\\\\d=\frac{m\lambda}{Sin\theta}[/tex]
where,
d = slit separation = ?m = order = 1λ = wavelength of the yellow light = 600 nm = 6 x 10⁻⁷ mθ = angle of diffraction = 21.2°Therefore, using the given values in the formula, we get:
[tex]d=\frac{(1)(6\ x\ 10^{-7}\ m)}{Sin(21.2^o)}\\\\[/tex]
d = 1.66 x 10⁻⁶ m
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Answer:
1.66
Explanation:
What would happen if a nuclear power plant blew up?.
Answer:
look at Chernobyl it is a nuclear power plant that blew up
good morning to you all! someone please answer this, ill give you brainliest and you will earn 50 points.
Natural hazards do not have to be natural disasters. What are some of the ways modern technology can help prevent future natural disasters?
Satellite imaging to make future disaster predictionMonitoring seismic activity using seismographsSatellite imaging helps in predicting disasters like hurricane. Before hurricane, the satellite can help detect the movements in ocean.
Seismographs are the devices that respond to the ground shaking before volcanic eruption, earthquake and explosions.
The correct ones are
Satellite imaging to make future disaster predictionMonitoring seismic activity using seismograph.The reasons are
Satellite imaging can find out the current weather status by which we can be warned about Tsunami,cyclones etc. Seismic waves monitoring can help us to find out at where the next earth quake going to happenA boy pushes a 54kg cart with a force of 81N. What is the cart's acceleration?
Explanation:
maturity also get disorganised
brainly A bicycle wheel has a diameter of 64.0 cm and a mass of 1.80 kg. Assume that the wheel is a hoop with all the mass concentrated on the outside radius. The bicycle is placed on a stationary stand, and a resistive force of 120 N is applied tangent to the rim of the tire. (a) What force must be applied by a chain passing over a 9.00-cm-diameter sprocket in order to give the wheel an acceleration of 4.50 rad/s2
For a bicycle wheel has a diameter of 64.0 cm, a mass of 1.80 kg and a resistive force of 120 N, The force must be applied by the chain is mathematically given as
F=862.413N
What force must be applied by a chain passing over a 9.00-cm-diameter sprocket in order to give the wheel an acceleration of 4.50 rad/s2?Generally, the equation for the Inertia is mathematically given as
I=0.5mr^2
Therefore
I=0.5(1.8)(0.32)^2
In conclusion
Znet=0.091*4.49
Znet=0.4086N.m
Hence
[tex]x*\frac{0.09}{2}-120*0.32=Znet\\\\x*\frac{0.09}{2}-120*0.32=0.4086[/tex]
F=862.413N
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A capacitor has a capacitance of 0. 40 µF at a voltage of 9. 0 V. What is the charge on each plate of the capacitor? µC.
The capacitor is a device that can store electrical energy. It is a two-conductor configuration. The charge on each plate of the capacitor will be 3.6 µC.
What is a capacitor?A capacitor is a device that can store electrical energy. It is a two-conductor configuration separated by an insulating medium that carries charges of equal size and opposite sign.
An electric insulator or vacuum, such as glass, paper, air, or a semi-conductor termed a dielectric, can be used as the non-conductive zone.
The given data in the problem is;
C is the capicitence of capicitor= 0. 40 µF
V is the voltage = 9. 0 V
Q is a charge on each plate of the capacitor=?µC.
The formula for the capacitor is given as;
[tex]\rm Q=CV \\\\ \rm Q=0. 40 \times 9. 0 \\\\ \rm Q=3.6 \ \mu C.[/tex]
Hence the charge on each plate of the capacitor will be 3.6 µC.
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Answer:
3.6
Explanation:
Find the current produced when a voltage of 60 V is applied to a resistance of 15 Ω? What is the equation?
Answer:
V = IR
Explanation:
V = voltage
I = current
R = resistance
What are real and virsual image explain with the help of examples
Here is your Answer:-
In optics, an image is defined as the collection of focus points of light rays coming from an object. A real image is the collection of focus points made by converging rays, while a virtual image is the collection of focus points made by extensions of diverging rays. In other words, a virtual image is found by tracing real rays that emerge from an optical device (lens, mirror, or some combination) backward to perceived or apparent origins of ray divergences. In diagrams of optical systems, virtual rays are conventionally represented by dotted lines.
Because the rays never really converge, a virtual image cannot be projected onto a screen. In contrast, a real image can be projected on the screen as it is formed by rays that converge on a real location.
A ball with 5j of GPE falls to the ground. What is the KE of the ball at the moment it hits the ground
Answer:
6j
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6) If Bam was hit by the hand with a force of 1200N. If he has a mass of 81kg, what acceleration did
Bam feel?
Answer:
14.81 m/s^2
Explanation:
f=m×a
1200=81×a
a=1200/81
a=14.81
what do we need to know in order to make motion safe for all?
Answer:
motion changes with time of the position or orientation of a body. Motion that changes the orientation of a body is called rotation.
Explanation:
why freezer is made in the upper part of refrigrator
why freezer is made in the upper part of refrigrator
✒ Answerthe cold air produced from it is denser than the warmer air in the bottom
ExplainationFreezer is normally provided at the top of the refrigerator, because density of the cold air is high compared to the hot air. In a refrigerator the air contacts with the cooling coil and gets cooling.Because of the high density the cold air gets down and the warm air/hot air moves upward and gets cooling from the cooling coil/evaporator coil. This process is repeated. If the Freezer is provided at the bottom place of the refrigerator, the cold air can't to move full area of the refrigerator. So the freezer is normally provided at the top at the refrigerator
A 12.0 kilogram mass weighs 84.0 newtons on a newly discovered planet. What is the magnitude of the acceleration due to gravity on this planet?
Answer:
12.0x84.0=1,008
Explanation:
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good morning! can someone please answer this, ill give you brainliest and your earning 50 points.
Answer:
With the exception of natural gas fossil fuel energies have seen an overall decrease since year 2000.
Explanation:
Just observe the graph
The Fossil fuels include-Petroleum ,coal and natural gases.
The graph of these goes fastly up during 20th century but ,then it stabled at the peak then has not shown any solid increase .Observe other energy sources graph ,nuclear energy etc have shown quite speedy increase .Option C is correct
Which of the following can be concluded from the graph
Use of coal for energy consumption has been steadily increase since the year 2000.Fossil fuels are not being used for energy as much as other alternative energy sourcesWith the exception of natural gas, fossil fuel energy sources have seen an overall decrease in use since the year 2000 ✓⤿Technology has been developed at it's highest tip since the beginning of 2000's , resulting in the foundation of various projects to reduce the use of fossil fuels
Nuclear energy is the third most used energy sourceHELP!!!
Two new planets are discovered, planet X and planet Y. The planets have identical volumes, but the mass of planet X is two times greater than the mass of planet Y. If two identical space ships land on each planet, which of the following will be true?
The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y.
The mass of the space ship on planet Y will be greater than the mass of the space ship on planet X.
The mass of the space ship on planet X will be greater than the mass of the space ship on planet Y.
The weight of the space ship on planet Y will be greater than the weight of the space ship on planet X.
The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y because mass is directly proportional to weight.
What is directly proportional?Directly proportional means if one factor is increases the other will automatically increases and vice versa so we can conclude that The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y is the correct answer.
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Need help asp will give brainlest
The scientific name is: Enteroctopus dofleini
The diet of the octopus is: Young giant Pacific octopus feeds on dead animals and is characterized as a “neustonic feeder.” Adult preys on crustaceans, such as shrimp, crabs, scallops, clams, as well as other mollusks, flatfishes, redfish and smaller octopods.
The range is: Giant Pacific octopus occurs along the Pacific coast from Southern California north to Alaska and across to Japan. It is found in habitats that range from shallow tidal pools to ocean depths of about 4,920 feet (1500 m). It is most abundant in shallow waters to 16 feet (5 m) deep.
The charecteristics are: bulbous heads, large eyes, and eight very useful arms.
5 facts are:
1. Giant Pacific octopuses can grow to 29.5 feet (9 m) wide from the tip of one arm to the tip of another and 44 pounds (20 kg).
2. Giant Pacific octopuses can change color in one-tenth of a second.
3. Giant Pacific octopuses can be found more than 330 feet (100 m) underwater.
4. Female giant Pacific octopuses never leave their eggs during the brooding process and die shortly after from self-cannibalization.1
5. Female giant Pacific octopuses lay 18,000 to 74,000 eggs that are the size of a grain of white rice.
Human impact: Not only can squids and octopuses sense sound, but as it turns out, these and other so-called cephalopods might be harmed by growing noise pollution in our oceans—from sources such as offshore drilling, ship motors, sonar use and pile driving.
Reproduction: Giant Pacific Octopus Reproduction. After about two years, the female will seek out a male for her one time to reproduce and lay eggs. Once she finds a male, he will deposit a sperm packet into the female's mantle. The female will then store the sperm packet until she is ready to fertilize eggs.
Migration: The medium to large pacific giant is believed to go through a migratory stage in which it migrates from shallow to deep water and back again, the migratory cycle runs as follows: shallow water October-November/deep water February-March/shallow water April-May/deep water August-September.
someone please answer this, ill give you brainliest and your getting 100 points.
Answer:
Option B is correct
Explanation:
A is denoted to lithosphere followed by B -asthenosphere .Which is covered by lava of E(Mantal section)
What is the heat source for convection currents in layer E?
O A
O B✓
When a volcano (present on lithosphere) erruputs, the molten material which goes down (Asthenosphere) ,results in the heating effects in the mantle .O C
O D
If two objects of the different masses are pushed with the same force; which will travel faster?
1. What kind of wave is in the picture above?
2. Label the following parts of waves above:
Rarefaction, compression, wavelength, direction of wave
Answer:
1.The above wave is a longitudinal wave, sound wave to be precise.
2. Concerning the labelling, the arrow at the top left corner is the RAREFACTION, the arrow at the top right corner is the COMPRESSION, the two arrows joined together depicts the WAVELENGTH. The horizontal arrow below is the DIRECTION OF THE WAVE.
Answer: 1. Longitudinal wave
Explanation: 2. See attachment
Why does a force in the direction opposite an object’s velocity decreasevthe object’s speed?
Answer:
If the Force Acts in the Direction Opposite to the Direction the Object Moves: In this situation, the force tends to slow the object down, thereby decreasing its kinetic energy. If the kinetic energy decreases, then the change in kinetic energy is negative.
Explanation:
Electroconvulsive therapy has been most successful in the treatment of:.
Given what we know, we can confirm that electroconvulsive therapy has been most successful in the treatment of major depression.
What is Electroconvulsive therapy?This is a relatively new procedure. It involves the intentional triggering of brief seizures in the brain. This is done while the patient is under the effects of anesthesia and is therefore painless. These seizures cause a dynamic shift in the brain chemistry of the patients, leading to greatly reduced symptoms in over 80% of patients.
Therefore, we can confirm that electroconvulsive therapy has been most successful in the treatment of major depression.
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Why can we hear sounds outside of a door when music is playing on the inside?
can someone please answer this, ill give you brainliest and your earning 50 points.
Answer:
Good morning! It's D. all of the above
Explanation:
Social backgrounds, culture, politics, education and economic reasoning might equally contribute to uncontrolled settlements. People live in disaster-prone areas partly for economic reasons. In the case of Semarang, where tidal flooding submerges houses, people stay due to economic factors.
Plus I took the test and got it right
_AnnieTheDreamGirl, 3/10/2022
What are reasons people settle in areas that are prone to natural disasters?
O avaliability of natural resources
There's an abundance of natural resources around the area prone to natural disastersO proximity (nearness) to water (rivers, ocean, etc.)
Due to frequent occurrence of disasters,the water flows down to many places and settle there forming many rivers and lakes and pondsO abundance of fertile soil
Some places where there's an eruption or erosions tend to have fertile soil rich in mineralsO all of the above ✓
From what three regions do most of the small objects in the universe come?
Answer:
Scientists who study the Sun usually divide it up into three main regions: the Sun's interior, the solar atmosphere, and the visible "surface" of the Sun which lies between the interior and the atmosphere. There are three main parts to the Sun's interior: the core, the radiative zone, and the convective zone.
Explanation:
Hopefully this helps :)
The majority, but not all, asteroids are found in the area between Mars and Jupiter, where countless other tiny rocky planets circle the sun. Some asteroids are members of groups that originated from bigger parent bodies that were broken in previous impacts with other asteroids.
What is the significance of small objects in the universe?The small objects in the universe may provide information about planet Earth, as well as the formation and evolution of the solar system, because some of these objects are thought to be only slightly altered from their original state in the young solar nebula from which the planets formed,
The bulk of asteroids are situated between Mars and Jupiter, while countless other small rocky planets orbit the sun.
Therefore, some asteroids belong to groups that descended from larger parent bodies that were shattered in past collisions with other asteroids.
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PLEASE HELP ME WITH THIS ONE QUESTION
An engine is 34% efficient. What ratio of work to heat input is possible?
Answer:
it would be 19/56 i believe !
Explanation:
Answered it correct on a test :)