At what angle relative to the north-south direction should this bird head to travel directly southward relative to the ground?
Answers
To travel directly southward relative to the ground, the bird should head
to an angle direction of approximately South 23.58° East.
The velocity of the bird can be directed such that the resultant velocity of
the bird and the wind will be in the southward direction.
component of the velocity is;
The magnitude of the velocity of the bird = 100 km/h
The direction of the bird = North-South direction
The magnitude of the velocity of the wind = 40 km/h
The direction of the wind = East-west direction
The component vector of the two velocities are;
Velocity of bird, v = -100·j
The velocity of wind, v = 40·i
The direction of the velocity of the bird will be southward if it has a
component of velocity to accommodate the velocity of the wind.
Let θ represent the angle of the direction of the bird relative to the
negative x-axis, we have;
-100 × cos(θ) = -40·i
θ ≈ 66.42° in the third quadrat, given that both the y, and x, values are
negative.
In the South-West direction, the angle is, therefore; 90 - 66.42 ≈ 23.58°
Therefore, the bird should fly in the direction south 23.58° east to fly
directly southward relative to the ground.
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Related Questions
A 77.0 kg woman slides down a
42.6 m long waterslide inclined at
42.3º. At the bottom, she is
moving 20.3 m/s. How much work
did friction do on the woman?
(Unit = J)
(Hint: Her starting height is NOT 42.6 m.)
Answers
Assuming the woman starts at rest, she descends the slide with acceleration a such that
(20.3 m/s)² = 2 a (42.6 m) → a ≈ 4.84 m/s²
which points parallel to the slide.
The only forces acting on her, parallel to the slide, are
• the parallel component of her weight, w (//)
• friction, f, opposing her descent and pointing up the slide
Take the downward sliding direction to be positive. By Newton's second law, the net force in the parallel direction acting on the woman is
∑ F (//) = w (//) - f = ma
where m = 77.0 kg is the woman's mass.
Solve for f :
mg sin(42.3°) - f = ma
f = m (g sin(42.3°) - a)
f = (77.0 kg) ((9.80 m/s²) sin(42.3°) - 4.84 m/s²) ≈ 135 N
Compute the work W done by friction: multiply the magnitude of the friction by the length of the slide.
W = (135 N) (42.6 m) ≈ 5770 N•m = 5770 J
Answer:
-5770 J
Explanation:
look above this lol
. What voltage is required to move 2mA through 0.5kΩ?mm DS m. M m m. Feed
Answers
Answer: The voltage required to move a current of 2mA through a resistor with a resistance of 0.5 kΩ can be calculated using Ohm's law, which states that the voltage across a resistor is equal to the current flowing through it multiplied by the resistance:V = I * RV = 2mA * 0.5 kΩV = 1VSo, the voltage required to move 2mA through 0.5 kΩ is 1 Volt.
PLS ANSWER FAST WILL GIVE BRAINLY!!!!! BUT ONLY IF YOU KNOW
what happens outside of the nucleus?
Answers
Answer:
electrons
Explanation:
i think this is right
If you apply the same amount of force to a 0.1-kilogram baseball and a 0.05-kilogram tennis ball, which one will accelerate more?
Answers
Answer:
The tennis ball.
Explanation:
Because the baseball is heavier, it requires more force to move it, whereas the tennis ball requires less force, so it will move more. Hope that makes sense!
If we apply the same amount of force to a 0.1-kilogram baseball and a 0.05-kilogram tennis ball, then the 0.05-kilogram tennis ball will accelerate more because the force is the product of the mass and acceleration.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
As given in the problem statement If you apply the same amount of force to a 0.1-kilogram baseball and a 0.05-kilogram tennis ball,
force on any object = acceleration × mass of the object
As given the same amount of force is applied to both the objects then the object having less mass would experience a greater amount of acceleration.
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Fighter jets on aircraft carriers are accelerated down a 270 foot "runway" in two seconds when they are taking off. A fully loaded, combat ready F-15 has a maximum take-off weight of 62,000 pounds. To ensure the pilot can reach sufficient velocity within 2 seconds a pneumatic cannon propels the plane down the runway. If this same cannon was used to launch your Toyota Corolla (mass is 2646lbs), how fast in miles per hour would you be going after reaching the end of the runway?
Answers
The speed of the Toyota Corolla would have been 143.9 mph.
What is the acceleration of the F-15?
The acceleration of the F-15 can be calculated as follows:
Acceleration = Velocity Change / Time = (Take-off Speed) / Time
where;
Take-off Speed = √(2dg /t²)
Take-off Speed = √(2 x (270 ft) x 32.2 ft/s² / (2 s)²)
T = √(17496) = 131.6 ft/s
Acceleration = Velocity Change / Time
= (131.6 ft/s) / (2 s) = 65.8 ft/s²
We can use the same acceleration to launch the Toyota Corolla, and calculate its final velocity:
Final Velocity = Initial Velocity + Acceleration x Time
where;
Initial Velocity = 0 (because the car is not moving initially), Time = 2 sFinal Velocity = 0 + (65.8 ft/s²) * (2 s) = 131.6 ft/s
Finally, we can convert the velocity from feet per second to miles per hour:
Velocity (mph) = Velocity (ft/s) x (1 hour/3600 s) x (5280 ft/mile)
= 131.6 ft/s x (1 hour/3600 s) x (5280 ft/mile)
= 143.9 mph
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Dev is trying to figure out what kind of career he wants. He knows that he does not want to be stuck behind a desk. He has always been a bit of a foodie and loves to entertain his friends with delicious dishes. Based on this information, which would be the BEST thing for him to major in at college? A. Physics B. Education C. Hospitality D. Criminal justice
Answers
Based on the information provided, the BEST major for Dev to pursue would be Hospitality.
What is force?Force is a physical quantity that describes the interaction between two objects or systems. It is a vector quantity, which means that it has both magnitude and direction. Force can cause an object to accelerate, change direction, or deform. Force is typically measured in units of Newtons (N) in the International System of Units (SI). One Newton is defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared. In other systems of measurement, such as the British system, force may be measured in units such as pounds or ounces. Some common examples of forces include gravity, friction, electromagnetic forces, and applied forces such as pushing or pulling. Understanding the concept of force is important in many areas of physics, engineering, and other sciences, as it helps explain how objects interact with each other and how they move and change over time.
Here,
This major would allow him to explore his passion for food and entertaining while also providing opportunities for hands-on experience and creativity. A degree in Hospitality can lead to careers in the food and beverage industry, hotel management, event planning, and more, all of which would offer the chance to work in dynamic, interactive environments rather than being stuck behind a desk all day.
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A student claims that the total momentum of a system of objects is conserved when there is no net force on the system.
To test the claim, the student uses a cue ball (white) and rolls it into an eight ball (black). When the balls collide, the cue
ball comes to a complete stop and the eight ball begins to move. The mass of the cue ball is 0.17 kg, and the mass of
the eight ball is 0.16 kg. A radar is used to measure the speed of the cue ball immediately before it comes in contact
with the eight ball, and another radar is used to measure the speed of the eight-ball immediately after the point of
contact. The cue ball approaches the eight ball at a speed of 4.00 m/s. After contact, the eight ball moves away from the
cue ball at a speed of 4.25 m/s. The scenario is shown in the picture.
Answers
The total momentum of the system is conserved and the momentum did not change.
The given parameters:
Mass of the white ball, m₁ = 0.17 kgMass of the black ball, m₂ = 0.16 kgInitial velocity of the white ball, u₁ = 4 m/sFinal velocity of the black ball, v₂ = 4.25 m/sThe initial momentum of the system is calculated as follows;
\(P_i = m_1 u_1 + m_2 u_2\\\\P_i = 0.17 \times 4 \ + \ 0.16(0)\\\\P_i = 0.68 \ kg m/s\)
The final momentum of the system is calculated as follows;
\(P_f = m_1 v_1 + m_2 v_2 \\\\P_f = 0.17 (0) \ + 0.16(4.25)\\\\P_f = 0.68 \ kg m/s\)
Thus, the total momentum of the system is conserved and the momentum did not change.
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The gravitational force between two objects will be greatest in which of the following situations?
Both objects have small masses are close together.
One object has a large mass, and the objects are close together.
Both objects have large masses and are close together.
Both object have large masses, and they are far apart.
Answers
Answer:
One object has a large mass, and the objects are close together.
The energy flux from the sun has a peak value of around 1500 W/m2, and solar cells are around
15% efficient. Estimate the area needed to satisfy US energy needs using solar cells, using the
estimates that there are about 350 million people in the US and that we use an average of 90
kW/person. Also assume that there are about 6 hours of "peak" sunlight per day. Answer in square
kilometers (do not put units in your answer, however).
Answers
Answer:
Power required = 3.5E8 * 9.0E4 = 3.2E13 (watts)
Power supplied = 1.5E3 * .15 * 3600 * 6 (watts / m^2) * A
= 1.5E3* .15 * 3600 * 6 = 4.9E6 * A
A = 3.2 / 4.9 * E7 = 3.2 / 4.9 * 10 = 6.5 km*2 (1 km^2 = 10E6 m^2)
Note: 1 W = 1 J / sec 1 kw = 1000 W
The area needed to satisfy US energy needs using solar cells 6.5 km²
What is energy?Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.
Power required = 3.5E8 * 9.0E4 = 3.2E13 (watts)
Power supplied = 1.5E3 * .15 * 3600 * 6 (watts / m^2) * A
= 1.5E3* .15 * 3600 * 6 = 4.9E6 * A
A = 3.2 / 4.9 * E7 = 3.2 / 4.9 * 10
= 6.5 km*2
The area needed to satisfy US energy needs using solar cells 6.5 km².
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Question 3 of 5
The image shows a school of fish being located using sonar.
Which two measures are needed to calculate the distance between the fish
and the ship?
A. The number of sound waves emitted from the ship
B. The speed of sound waves
C. The amount of time it takes sound waves to travel to the fish and
back
D. The size of the ship
Answers
Answer:
Explanation:
b
Answer: The correct answers are B and C. :)
Explanation:
Estimate the energy of the characteristic x-ray emitted from a tungsten target when an electron drops from an M shell ( n=3 state) to a vacancy in the K shell (n=1 state). The atomic number for tungsten is Z=74
Answers
The energy of the characteristic x-ray emitted from a tungsten target 1.36*10³ eV.
The energy of a characteristic x-ray emitted from a tungsten target when an electron drops from an M shell (n=3 state) to a vacancy in the K shell (n=1 state) can be estimated using the equation E =hcZ²Δn²/n². Here Z is the atomic number for tungsten (Z=74) and Δn is the difference between n1, the initial orbital, and n2, the final orbital, (n1 - n2). In this case n1= 3 and n2= 1 giving (3-1=2).
Using the equation E =(hc*74²*2²)/1² = (6.63*10-34*.993*17576)/1= 1.36*10³ eV. Therefore, the estimated energy of the characteristic x-ray emitted from the tungsten target when an electron drops from the M shell (n=3) to a vacancy in the K shell (n=1) is approximately 1.36*10³ eV.
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If it takes my car 2.2 seconds to accelerate from 8.9 m/s to 35.76 m/s, what is my cars average acceleration in that time?
A -1 2.2 m/s2
B 12.2 m/s2
C 0 m/s2
D 26.86 m/s2
Answers
Arace car starts from rest and accelerates uniformly to a speed of 40 m/s in 8.
seconds. How far will the car travel during the 8 seconds?
meters
Type the correct answer, then press Enter.
Answers
Answer:
160 m
Explanation:
For computing the distance first we have to determine the acceleration which is shown below:
v = u + at
where,
v = 0 = initial velocity
u = 40 = uniformly to a speed
t = 8 = time
So, the a is
= 40 ÷ 8
= 5 m/s
Now we have to use the distance formula i.e
d = ut + 1 ÷ 2 at^2
= 1 ÷2 × 5 × 8^2
= 160 m
Basically we have to applied the above formulas so that the distance could come
will give brainlist 20 points
Answers
Answer:
A
Explanation:
take my answer with a grain of salt tho
Can anyone explain alpha decay?
Explain beta decay
Answers
Explanation:
Beta decayRadioactive decay
In nuclear physics, beta decay is a type of radioactive decay in which a beta particle is emitted from an atomic nucleus, transforming the original nuclide to an isobar of that nuclide
Answer:
In alpha decay, mass number of the nucleus decreases by 4 unit and atomic number is decreased by 2 unit. Alpha decay : ZAX→Z−2A−4Y+24He. When a parent nucleus emits an electron (beta particle) along with the daughter nucleus, then the nuclear reaction thus is called as beta decay.
dangers of fibre optics
Answers
The time between the lightning and thunder is increasing. What is happening to the storm?
Answers
The thunder and lightning happen at the same time but sound waves move more slowly than light waves. So if it takes longer for the sound to reach you, therefore the storm is farther away.
What are sound waves?A sound wave is described as the pattern of disturbance caused by the movement of energy traveling through a medium such as air, water or any other liquid or solid matter as it propagates away from the source of the sound.
Sound waves are divided into three categories and they :
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Dr. Perkins is studying how geographic proximity impacts perception of a case by potential members of a jury. Dr. Perkins is most likely a a biopsychologist b clinical psychologist c developmental psychologist d forensic psychologist
Answers
By studying how geographic proximity impacts perception of a case by potential members of a jury, Dr. Perkins is most likely a: D. forensic psychologist.
What is psychology?Psychology can be defined as the scientific study of both the consciousness and unconsciousness of the human mind such as feelings, emotions and thoughts, so as to better understand how it functions and affect human behaviors in contextual terms.
Who is a forensic psychologist?A forensic psychologist can be defined as a professional who has been trained and licensed to study how both psychological, biological, and other social factors affect a civil or criminal investigation, so as to answer legal questions that arises during court proceedings.
In this context, we can reasonably infer and logically deduce that Dr. Perkins is most likely a forensic psychologist because he studies how geographic proximity impacts perception of a case by potential members of a jury
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Answer: D. Forensic Psychologist
A forensic psychologist combines their knowledge of the legal field and the psychology field to do their jobs. We know that the answer to this question is a forensic psychologist because Dr. Perkins is studying both law, "members of a jury", and psychological elements together, "impacts perception".
Explanation: Validity of answer is show below.
what would happen if a paper clip that is not a permanent magnet was brought close to the south pole of a permanent magnet?
Answers
Answer:
Because this pole is different from the original pole that magnetized the paperclips, the top paperclip will become demagnetized in the opposite direction and the bottom paperclip will be repelled away
What is the exact circumference of Earth?
Answers
Whilst equatorial diameter is somewhat bigger at 7930 miles, the distance between the south and north poles is roughly 7900 miles. This gives us just a circumference of the Earth of around 25,000 miles.
Is the Earth's radius 24000 miles?
The standard measurement of the earth's circumference today is 40,096 km (24,901 miles).
How do the ancient Greeks determine the circumference of the Earth?
800 kilometers, or 5,000 stades, separated the two cities when Eratosthenes employed a man to time the distance between them. The Earth's circumference can therefore be calculated using straightforward ratios; as 7.2 degrees is 1/50 or 360 degrees, 800 multiplied by 50 = 40,000 kilometers.
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Whilst equatorial diameter is somewhat bigger at 7930 miles, the distance between the south and north poles is roughly 7900 miles. This gives us just a circumference of the Earth of around 25,000 miles.
Is the Earth's radius 24000 miles?
The standard measurement of the earth's circumference today is 40,096 km (24,901 miles).
How do the ancient Greeks determine the circumference of the Earth?
800 kilometers, or 5,000 stades, separated the two cities when Eratosthenes employed a man to time the distance between them. The Earth's circumference can therefore be calculated using straightforward ratios; as 7.2 degrees is 1/50 or 360 degrees, 800 multiplied by 50 = 40,000 kilometers.
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A box weighs 25N. How much mass does it have?
Answers
Explanation:
If box weight 25N on ground
MA=F
M(10)=25
M=2.5Kg
Un cuerpo se mueve por una carretera que tiene rozamiento.¿Podríamos aplicar el principio de conservación de la energía mecánica? ¿Qué requisitos se han de cumplir para poder aplicarla?
Answers
Answer:
Sí se puede aplicar el Principio de Conservación de la Energía Mécanica siempre y cuando se considere los efectos de pérdida de energía a causa del rozamiento, de lo contrario, no se cumpliría el requisito de conservación derivado del citado principio de conservación.
Explanation:
Consideremos que el cuerpo representa nuestro sistema de estudio, el cual se desplaza por una carretera y experimenta rozamiento, significando cambios en la energía cinética y potencial gravitacional. La presencia de rozamiento indica una disipación de la energía del cuerpo, cuya energía mecánica total disminuye, significando un sistema no conservativo.
Sí se puede aplicar el Principio de Conservación de la Energía Mécanica siempre y cuando se considere los efectos de pérdida de energía a causa del rozamiento, de lo contrario, no se cumpliría el requisito de conservación derivado del citado principio de conservación.
What changes into energy in the sun?
Answers
Answer:
The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom. During the fusion process, radiant energy is released. :D
How can i get the distance of echo equals to 17m?
Answers
To get the distance of an echo that equals 17m, you need to know the speed of sound and the time it takes for the echo to bounce back.
The speed of sound in air is approximately 343 meters per second. So, to calculate the time it takes for the sound to travel to the object and back, you need to divide the distance by the speed of sound.
Here's the formula:
Time = Distance / Speed of Sound
So, if you want to find the time it takes for sound to travel to the object and back and reach your ears as an echo, you can use this formula.
Time = 17m / 343 m/s
Time = 0.0496 seconds
This means that it takes approximately 0.0496 seconds for the sound to travel to the object and back, and for the echo to reach your ears. Keep in mind that this calculation assumes that the sound waves travel directly to and from the object, without any obstructions or other factors that could affect the speed or distance of the sound.
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A turtle crawls along a straight line, which we will call the x-axis with the positive direction to the right. the equation for the turtle's position as a function of time is:______
Answers
The equation for the turtle's position as a function of time is: x = 2t
The equation for the turtle's position as a function of time can be represented by the equation x = vt + x₀, where x is the turtle's position on the x-axis, v is its velocity, t is the time elapsed, and x₀ is the initial position of the turtle.
In this case, since the turtle is crawling along a straight line on the x-axis, its velocity will be constant. Let's say the turtle's velocity is 2 units per second and its initial position is at x = 0.
Using the equation x = vt + x₀, we can substitute the values: x = 2t + 0.
Simplifying the equation, we get x = 2t.
This means that the turtle's position on the x-axis is equal to 2 times the elapsed time. For example, if the turtle has been crawling for 5 seconds, its position would be x = 2(5) = 10 units.
In this case, x = 2t represents the equation for the turtle's position as a function of time.
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A bar magnet is separated four times, the number of monopoles and dipoles formed are __.
[the answer is 0 monopoles and 4 dipoles, but I think it should be 8 dipoles.]
Kindly Help me understand !
Answers
The characteristics of the magnetism allow to find the results for the questions related to the division of the magnetic bar are:
The magnetic monopoles do not exist. When cutting the magnet there are 4 magnetic dipoles.
The magnetic field is understood today as the effect of the movement of electric charges, in this sense there is no magnetic monopole since the orbital or spin movement of the charges is continuous.
The dipole or magnetic moment is caused by the movement of the electrons around the nucleus, in some cases the movements are in the opposite direction and can be annulled and the electrons grinding on themselves called spin.
A magnet is a material where there is a permanent magnetic field formed by the sum of all the microscopic contributions, this sum gives a dipole or total magnetic moment different from zero.
They indicate that a bar-shaped magnet is cut into four parts, each part forms a smaller magnet, that is, each part is a magnetic dipole.
In conclusion, using the characteristics of magnetism we can find the results for the questions about the division of the magnetic bar are:
The magnetic monopoles do not exist. When cutting the magnet there are 4 magnetic dipoles.
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Convert 1 metre per second square into 1 kilo metre per second square
Answers
1 meter per second squared is equivalent to 0.001 kilometer per second squared.
To convert 1 meter per second squared (m/s²) into kilometer per second squared (km/s²), we need to consider the conversion factor between meters and kilometers.
1 kilometer is equal to 1000 meters, so we can use this conversion factor to convert the units.
First, let's convert the acceleration from meters per second squared to kilometers per second squared:
1 m/s² = (1/1000) km/s²
Therefore, 1 meter per second squared is equal to 0.001 kilometer per second squared.
So, 1 m/s² = 0.001 km/s².
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A dog has a mass of69kg and an acceleration of 2m/s/s. What is the force of the dog?
Answers
Answer:
138 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 69 × 2
We have the final answer as
138 NHope this helps you
Which types of light are absorbed by genetic material?
ultraviolet (UV)
visible
infrared (IR)
microwave F radio
Answers
Explanation:
the answerer is visible
Genetic material is known to absorb UV light. Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.
What light does genetic material absorb?Genetic material is the hereditary substance in the cell. It carries all information specific to an organism. It is known as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid)
UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.
Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.
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The _______scale is called an absolute temperature scale, and its zero point is called
absolute zero.
O A. Celsius
O B. Fahrenheit
O C. Kelvin
Answers
Answer:
It is C the kelvin scale
Explanation:
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