The uniform bar weighs 40.0 N and is subjected to the forces shown. Find the magnitude, location, and direction of the force needed to keep the bar in equilibrium
Answers
Determine the amount, location, and direction that the force is required to maintain the balance of the bar: [Ans: 106 North, 0.675 Left at 49"] G0 N 70 N.
Which three equilibrium conditions apply?If all three of a following three conditions are true, a solid subjected by three forces with opposing lines or action is in equilibrium: There are coplanar action lines (in the same plane) The lines of activity have intersected (they cross at the same point) These forces combine to form a vector that sums to zero.
What is an illustration of forces that are balanced?An object is now in equilibrium or moving at a constant speed if it is subjected to two equal and opposing forces. A object resting on the a horizontal surface serves as an illustration of this. The object's weight is equal to and in opposition to the upward resistive force.
To know more about direction visit:
https://brainly.com/question/30173481
#SPJ1
Related Questions
if the angular momentum of a rigid body is changing, does that mean that there must be a net torque acting on the body?
Answers
The attribute of any rotating object determined by the product of the moment of inertia and the angular velocity is known as angular momentum.
What is Angular Momentum?Without a kickstand, attempting to balance while getting on a bicycle will definitely result in you falling off. However, these wheels gain angular momentum once you begin pedaling. They're going to be resistant to change, which will make balance simpler.The definition of angular momentum is: any rotating object's characteristic determined by moment of inertia times angular velocity.It is a characteristic of rotating bodies determined by the sum of their moment of inertia and angular velocity. Since it is a vector quantity, the direction must also be taken into account in addition to the magnitude.Angular Momentum Examples : We encounter this property frequently, whether knowingly or unknowingly. The following provides some examples : Ice-skaterIn order to begin a spin, an ice skater starts with her hands and legs spread widely from the center of her body. She moves her hands and leg closer to her body when she needs to spin with more angular velocity, though. As a result, she conserves angular momentum and spins faster.
To Learn more About angular momentum refer to :
https://brainly.com/question/26889176
#SPJ4
a boy on a skateboard pushes off the ground with his foot. he and the skateboard accelerate down the sidewalk due to the force
Answers
A boy on a skateboard pushes off the ground with his foot. he and the skateboard accelerate down the sidewalk due to the force on the ground in one direction.
The ground applies an equal and opposite force on the boy in the opposite direction. This force causes the boy and the skateboard to accelerate forward.
According to Newton's second law of motion, the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass.
Therefore, the acceleration of the boy and the skateboard will depend on the force applied by the boy's foot and the combined mass of the boy and the skateboard.
To know more about force here
https://brainly.com/question/12785175
#SPJ4
A pole 10 m long lies on the ground next to a barn that is 8 m long. AN athlete picks up the pole, carries it far away and then runs with it towards the barn at speed 0.8c. The athlete's friend remains at rest, standing by the open door of the barn.
Answers
Answer:
okay
Explanation:
but what is the question here?
True or False: Solar energy drives winds around the globe as warm water and land heat the air.
Answers
Answer:
False
Explanation:
A bird flies 20 meters North, 10 meters South, and then 10 meters East. What’s the bird’s displacement? Also, can you explain how you did it? Thank you
Answers
Answer:
14.14 metres
Explanation:
Given that a bird flies 20 meters North, 10 meters South, and then 10 meters East.
the bird’s displacement can be calculated by first subtracting the value of distance from the south from the north.
20 - 10 = 10m
The displacement will be achieved by using pythagorean theorem
Displacement = sqrt ( 10^2 + 10^2 )
Displacement = sqrt( 200)
Displacement = 14.14 m
Therefore the displacement of the bird is 14.14 metres.
why was Idi Amin labeled as one of the Africa's cruelest dictators
Answers
Answer: He was labeled as one of Africa's cruelest dictators because during his eight year reign many civilians were massacred. He drove out Uganda's Indian and Pakistani citizens and spent large amount of money on the military which led to the economic decline of the country.
Explanation:
After the water has boiled, the temperature of the water decreases by 22 °C.
The mass of water in the kettle is 0.50 kg.
The specific heat capacity of water is 4200 J/kg °C.
Calculate the energy transferred to the surroundings from the water.
Answers
The energy transfered to the surroundings from the water of mass 0.5 kg is 46200 J.
What is energy?Energy is the ability of the capacity to perform work. The s.i unit of energy is Joules (J).
To calculate the energy transferred to the surroundings from the water, we use the formula below.
Formula:
E = cmΔt........... Equation 1Where:
E = Energy transfered to the surroundingc = Specific heat capacity of waterm = Mass of waterΔt = Change in temperatureFrom the question,
Given:
c = 4200 J/kg°Cm = 0.5 kgΔt = 22°CSubstitute these values into equation 1
E = 4200×0.5×22E = 46200 JHence, the energy transfered to the surroundings from the water is 46200 J.
Learn more about energy here: https://brainly.com/question/25959744
#SPJ1
I NEED THIS ASAP I WILL MARK YOU THE BRAINLIEST NO LINKS !!!!
Newton's First Law state
For every action there is an equal and opposite reaction.
An object in motion stays in motion unless acted upon by an unbalanced force.
Gravity acts on all objects that have mass.
Force= mass x acceleration
Answers
The part of a longitudinal wave where the particles are spread apart is called a______?
Here are the choose of answers: A- Top Wave has the highest pitch because it has the highest amplitude.
B - Bottom Wave has the highest pitch because it has the lowest frequency.
C- Bottom Wave has the highest pitch because it has the highest frequency.
D- Both waves have the same pitch because they both have the same frequency
Answers
These are the parts of a wave that are further apart and the ones that are close together are called compressions.
I don’t think it is any of the choices stated above!
which mixture is most likely to be homogeneous?
Answers
We can't tell what they're pouring glue on, but I would go for B since homogenous means of the same, and none of them are mixing things that are the same.
A ball is thrown straight upwards. at the very top of its flight the velocity of the ball is zero. what direction, if any, is the acceleration at this point?
Answers
The acceleration due to gravity is constant even at the top of its flight and its direction will be towards to ground (Downwards).
The horizontal distance of an object in projectile motion relative to its origin is referred to as its range. Only at the highest point of a thrown object's flight does vertical (y) speed equal zero. This component of velocity does not change over time since there is no horizontal acceleration in the absence of air resistance.
For many people, this is a counterintuitive idea. (Depending on the object, air resistance will result in a little or major drop in velocity. However, for the time being, this aspect is disregarded.) Gravitational acceleration must be included in a vertical motion, and as a result, the vertical velocity evolves with time.
To learn more about gravitational acceleration please visit-
https://brainly.com/question/3009841
#SPJ4
A radio wave has a frequency of 5.5 × 104 hertz and travels at a speed of 3.0 × 108 meters/second. What is its wavelength?
Answers
Answer:5.45X10^3m
Explanation:So use the formula,v= fλ
3X10^8=5.5X10^4λ what Im saying is divide both and u should get 5454.54m but do sig figs to get answer
Answer:
5.45X10^3m
Explanation:
One drops a penny from top of the Empire State Building on the ground below. The hight of the Empire State Building is 443m How long will it take for a penny yo strike the ground assuming no air resistance
Answers
Answer:
See below
Explanation:
Assuming no resistance
DISTANCE = 1/2 a t^2
443 = 1/2 (9.81)t^2 Shows t = 9.5 seconds
(Please help if you can, I need this last answer done by tonight.)
Use the universal law of gravitation to solve the following problem.
Hint: mass of the Earth is = 5.97 x 1024 kg
A scientific satellite of mass 1300 kg orbits Earth 200 km above its surface. If Earth has a radius of 6378 km, what is the force of gravity acting on the scientific satellite?
a. Write out the formula for this problem.
b. Plug in the values from this problem into the formula.
c. Solve the problem, writing out each step.
d. Correct answer
Answers
Answer:
11963.43 N
Explanation:
From the question given above, the following data were obtained:
Mass of the earth (Mₑ) = 5.97x10²⁴ Kg
Mass of satellite (Mₛ) = 1300 Kg
Radius of the earth (R) = 6378 km
Distance between the earth and satellite (r) = R + 200 Km = 6378 + 200 = 6578 Km
Force of gravity (F) =?
Next, we shall convert 6578 Km to m. This can be obtained as follow:
1 Km = 1000 m
Therefore,
6578 Km = 6578 Km × 1000 m / 1 Km
6578 Km = 6578000 m
Finally, we shall determine the force of gravity. This can be obtained as follow:
Mass of the earth (Mₑ) = 5.97x10²⁴ Kg
Mass of satellite (Mₛ) = 1300 Kg
Distance apart (r) = 6578000 m
Gravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²
Force of gravity (F) =?
F = GMₑMₛ / r²
F = (6.67×10¯¹¹ × 5.97x10²⁴ × 1300) / (6578000)²
F = 11963.43 N
Therefore, the force of gravity on the scientific satellite 11963.43 N
why energy crisis may create big problem in the near future.
Answers
Answer:
Most energy crises have been caused by localized shortages, wars and market manipulation. Some have argued that government actions like tax hikes, nationalisation of energy companies, and regulation of the energy sector, shift supply and demand of energy away from its economic equilibrium.
by what factor is earth’s gravitational field reduced at a distance of 5 earth radii from the center of earth?
Answers
Gravitational field strength is the force per unit mass experienced by a small test mass placed in a gravitational field.
The gravitational field strength at a distance from the center of the Earth is given by the formula:
g = G * M / r^2
where g is the gravitational field strength, G is the gravitational constant, M is the mass of the Earth, and r is the distance from the center of the Earth. At a distance of 5 Earth radii from the center of the Earth, the distance from the center of the Earth is r = 5 * R, where R is the radius of the Earth. Substituting this into the formula above, we get:
g = G * M / (5R)^2
g = G * M / 25R^2
To find the factor by which the gravitational field strength is reduced at this distance, we need to compare it to the gravitational field strength at the surface of the Earth. At the surface of the Earth, r = R, so we have:
g0 = G * M / R^2
The factor by which the gravitational field strength is reduced at a distance of 5 Earth radii from the center of the Earth is therefore:
g / g0 = (G * M / 25R^2) / (G * M / R^2)
g / g0 = R^2 / (25R^2)
g / g0 = 1 / 25
Therefore, the gravitational field strength is reduced by a factor of 1/25, or 0.04, at a distance of 5 Earth radii from the center of the Earth compared to the surface of the Earth.
To learn more about gravitational field strength here:
https://brainly.com/question/18511078
#SPJ4
A stalled car is being pushed up a hill at a constant velocity by three people. The net force on the car is...a) Zerob) Up the hill and equal to the weightc) Down the hill and equal to the weightd) Down the hill and greater than the weight
Answers
The correct answer is (a) Zero.
Since the car is being pushed up the hill at a constant velocity, it means that the net force acting on the car is zero. This is because the car is not accelerating, and therefore the net force must be equal to zero according to Newton's Second Law of Motion, which states that the net force acting on an object is equal to its mass times its acceleration (F = ma).
In this case, the car has a weight force acting downward due to gravity, and the three people are pushing the car up the hill with a force that is equal in magnitude but opposite in direction to the weight force. Therefore, the net force on the car is the vector sum of these two forces, which is equal to zero since the car is not accelerating.
In summary, the net force on the stalled car being pushed up a hill at a constant velocity by three people is zero.
To learn more about constant velocity visit: https://brainly.com/question/2088385
#SPJ11
The atomic mass of sodium is 0.0230 kg/mole. How many moles are in 1.59 kg of sodium?
Answers
\(\\ \sf\longmapsto No\;of\:moles=\dfrac{Given\:mass}{Atomic\:mass}\)
\(\\ \sf\longmapsto No\:of\:moles=\dfrac{1.59}{0.0230}\)
\(\\ \sf\longmapsto No\:of\:moles=69.13moles\)
an air craft heads north at 320km/hr relative to the wind. The wind velocity is 80km/hr from the north. Find the velocity of the air craft relative to the ground
Answers
Answer:
iyuksouijz
Explanation:
ok,kcipxuoa
A physicist observes that a cannonball shot horizontally from a cannon travels 1.000 m before falling to the ground. Which of the following statements correctly explains this observation using Newton's laws?
O Objects tend to remain in the state of motion they are in unless acted upon by an unbalanced force. Friction and gravity acted on the cannonball, slowing it down and slamming it into the ground
O Objects at rest tend to remain in their cument state of motion unless acted upon by an unbalanced force, but objects in motion require a continual application of force to stay in motion
The force on the cannonball produced by the cannon was less than the force of friction on the cannonball, causing the cannonball to slow down and fall to the ground.
O The force on the cannonball produced by the cannon exactly equaled the force of friction on the cannonball, balancing the forces and causing it to fall to the ground.
Answers
The correct statement that explains the observation using Newton's laws is objects at rest tend to remain in their current state of motion unless acted upon by an unbalanced force, but objects in motion require a continual application of force to stay in motion. Here option A is correct.
According to Newton's first law of motion, an object will continue moving at a constant velocity in a straight line unless acted upon by an external force. In this case, when the cannonball is shot horizontally from the cannon, it initially possesses a forward velocity due to the force applied by the cannon. However, once the cannonball is in motion, the only forces acting on it are gravity and friction.
Gravity acts vertically downward, causing the cannonball to accelerate downward. Friction acts horizontally in the opposite direction to the motion of the cannonball. As the cannonball moves forward, friction opposes its motion and gradually slows it down.
Since there is no force continuously propelling the cannonball forward, and the forces of friction and gravity act on it, the cannonball eventually comes to a stop and falls to the ground. Hence option A is correct.
For more such questions on Newton's laws
https://brainly.com/question/28171613
#SP8
High tide from Moon's pull on
oceans
High tide from Moon's pull on
solid ground
Low tide ahead of Moon's
orbit
Low tide behind Moon's orbit
3
TE
Label the diagram with descriptions of the tides at each location.
Sign out
ES
Feb 2
8:
PLEASE HURRY
Answers
I'm sorry but I don't know
High tide from Moon's pull on oceans
Low tide ahead of Moon's orbit
High tide from Moon's pull on solid ground
Low tide behind Moon's orbit
QuestionThe temperature of a body is the measure of average kinetic energy of the molecules of a body. ATrueBFalse
Answers
A. True. The temperature of a body is indeed a measure of the average kinetic energy of the molecules of that body.
The temperature of a body is related to the random motion of its constituent particles, such as atoms or molecules. The greater the kinetic energy of the particles, the higher the temperature of the body. Temperature is measured using a thermometer, which works by detecting the expansion or contraction of a material in response to changes in temperature. This expansion or contraction is caused by the kinetic energy of the particles in the material, which increases or decreases as the temperature changes. The relationship between temperature and kinetic energy is a fundamental concept in thermodynamics, and is used to describe many physical phenomena, such as heat transfer, phase transitions, and chemical reactions. Therefore, it is important to understand that temperature is indeed a measure of the average kinetic energy of the molecules of a body.
To learn more about temperature click the link below
brainly.com/question/7510619
#SPJ4
I need help with this one.
Answers
The correctly written chemical equation that demonstrates the conservation of mass is:
\(H_{2} + O_{2} - > H_{2}O\)
What is conservation of mass?The law of conservation of mass is a fundamental principle in chemistry and physics that states that mass cannot be created or destroyed in a chemical reaction or a physical process. In other words, the total mass of the reactants must be equal to the total mass of the products in any chemical reaction. This means that the number of atoms of each element present in the reactants must be equal to the number of atoms of the same elements in the products.
\(H_{2} + O_{2} - > H_{2}O\)
This equation shows the reaction between hydrogen gas and oxygen gas to produce water vapor. The equation is balanced, which means that the number of atoms of each element on both sides of the equation is equal, and therefore, the law of conservation of mass is upheld.
The law of conservation of mass is important in chemistry because it allows chemists to predict the outcome of a reaction and to calculate the amount of reactants needed to produce a certain amount of product. It also ensures that the total amount of matter in the universe remains constant, which is a fundamental concept in modern physics.
Learn more about conservation of mass, here:
https://brainly.com/question/13383562
#SPJ1
Which statement best describes twins with identical DNA?
O A. The twins will not be similar physically but may have similar behaviors.
OB. The twins will not share any similarities.
c. The twins will be identical physically and behaviorally.
D. The twins will be very similar physically but will have some unique behaviors.
Answers
The best description of twins with identical DNA is that the twins will be identical physically and behaviorally. Thus, the correct option is C.
What are the identical DNA twins?Identical twins are also called as the monozygotic twins which result from the fertilization of a single egg by a single sperm, or with the fertilized egg which are then splitting into two individual offspring. Identical twins share the same genomes and are also of the same sex.
Identical twins are also called as monozygotic twins, these result from the fertilization of a single egg by a single sperm, with the fertilized egg which then splitting into two identical cells. Identical twins share the same genomes and are always of the same sex.
Therefore, the correct option is C.
Learn more about DNA here:
https://brainly.com/question/21668095
#SPJ6
A force of 30 Newtons is used to push a basket along the floor a total distance of 3 meters. How much work is done on the basket?
Answers
Answer:
the total work done is 90J
Explanation:
the reason why is because you are the force (30 newtons) and the metere (3) so you will be multiplying those two numbers together.
W= FD 30(3)= 90J
A 1.0 kg weight suspended from a spring is pulled to 0.25 m below its equilibrium point.
If the spring has a spring constant (k) of 50.0 N/m, at what rate will the mass accelerate when it is released?
O 200 m/s²
O 12.5 m/s²
○ 2.7 m/s²
O 6.5 m/s²
Answers
Answer:
B.12.5m/s²Explanation:
Greetings!!!
Given values :-weight= 1.0kg
Extension (x)= 0.25m
spring constant (k)= 50.0N/m
Required value :-Acceleration= ?
Solution:-\(firstly.recall \: the \: hooks \: law\)
F=Kx\(substitute \: known \: varabiles \: into \: the \: equation\)
F= (50)(0.25)\(solve \: for \: force\)
F= 12.5N\(secondly \: reall \: the \: newtons \: second \: law\)
F= ma\(substitute \: known \: variables \: into \: the \: equation \: \)
(12.5)= (1.0)a\(solve \: for \: acceleration \: \)
a= 12.m/s²Hope it helps!!!
A car drives 40 miles at an angle of 35 degrees north of east then drives for 50 miles due north and finally 10 miles at an angle of 20 degrees north of west what is the cars resultant magnitude and direction
Answers
Answer:
Below
Explanation:
FIND TOTAL NORTH DISPLACEMENT
40 sin 35 + 50 + 10 sin 20 = 76.363 mi
FIND TOTAL E-W DISPLACEMENT
40 cos 35 - 10 cos 20 = 23.369 mi
Total resultant displacement ( using pythag theorem)
sqrt ( 76.363^2 + 23.369^2 ) = 79.86 mi
angle = arctan ( 79.23 / 23.37) = 73 ° North of East
the part of the electromagnetic spectrum most absorbed by water is group of answer choices infrared. lower frequencies in the visible. higher frequencies in the visible. ultraviolet. middle frequencies in the visible.
Answers
Red light is more easily absorbed by water than other visible wavelengths and has a little bit more energy than infrared light that is invisible to the human eye.
What frequency range of the electromagnetic spectrum does water absorb most of?Red light is more easily absorbed by water than other visible wavelengths and has a little bit more energy than infrared light that is invisible to the human eye. Red fish appear almost black at 20 meters because of this. Compared to light with shorter wavelengths, longer wavelength light is absorbed more quickly.At normal temperature and pressure, atmospheric water vapor causes absorption that extends from about 200 cm-1 (50 m) to longer wavelengths approaching the microwave area in the far-infrared spectrum.To learn more about far-infrared spectrum refer to:
https://brainly.com/question/14783701
#SPJ4
Can someone help with the problems?
Answers
Answer:
utrhh
Explanation:
hrtyrt
Explanation:
the answer is b
the second one is a
Can the sun explain global warming? ( 2 points) Suppose that the Earth has warmed up by 1 K in the last hundred years. i) How much would the solar constant have to increase to explain this? ii) Compare this to the observed fluctuation of the solar constant over the past 400 years (shown in class) For part (i), begin with the standard 'blackbody' calculation from class, that is: set α=0.30, and assume that the Earth acts as a blackbody in the infrared.
Answers
No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.
This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.
i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.
ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.
The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.
To know more about global warming :
brainly.com/question/29625243
#SPJ11