what is the net force that is the result ot combining a 30 N force at a 45° angle above the horizontal and a 45 N force 37° above the horizontal

Below  is an example of the kind of information that might be found in such a table for my HP computer:

Computer Type: Desktop

Computer Model: HP Pavilion

Manufacturer: HP

Processor Model: Intel Core i5

Processor Speed: 2.5 GHz

RAM Capacity: 8 GB

Secondary Storage: 1 TB HDD

Input Devices: Keyboard, Mouse

Output Devices: Monitor, Speakers

Input/Output (Dual) Devices: USB ports, DVD-RW drive

OS: Windows 10 (version 20H2)

The most significant program running on a computer is the operating system. In addition to overseeing all of the computer's hardware and software, it also supervises the memory and processes. Additionally, it enables communication with the computer even if you are not fluent in its language.

Therefore, A group of programs known as an operating system coordinates the actions of computer hardware and software. When man and machine are in contact, it serves as a bridge. Microsoft Windows, Linux, BOSS, and other operating systems are examples.

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The descriptions of object's motion with the position-time graph that represents at:

D. speeding up - Graph 1

C. not moving - Graph 2

B. moving with constant speed - Graph 2

A. slowing down - Graph 3

Motion is the conceptual notion in which an object moves from its position with respect to time. Motion is acceptable to be described in terms of displacement, distance, velocity, acceleration, speed.

Furthermore, Motion is a change in an object's position over time. It is the result of forces acting upon an object, and can be described in terms of distance, speed, and direction.

Therefore, it is a change of position or orientation of a body with the change of time. looking at the attached graph, it can then be concluded that the correct answers are as given above

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An object's density influences whether it will float or sink in another material. If an object is less dense than the liquid it is placed in, it will float. If an object is denser than the liquid in which it is immersed, it sinks.

The density of a substance is a measure of how tightly it is packed. It is stated in terms of mass per unit volume. Density is represented by the symbol D, and the density formula is: = m/V, where is the density, m is the object's mass, and V is its volume. A material's density is defined as its mass per unit volume. The most frequent density symbol is, however the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume.

Here,

The density of a thing influences whether it will float or sink in another substance. If an object is less dense than the liquid in which it is placed, it will float. If an object is more dense than the liquid it is immersed in, it will sink.

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By utilizing a funnel filter made of Sodium chloride salt as a filtration method. The organic solvent will be evaporated using the rotary evaporation method, leaving the sucrose behind.

All plants naturally generate sugar, the well-known and adored simple carbohydrate, also called by its chemical formula, sucrose. This includes fruits, veggies, and even nuts. Plants including berries, vegetables, and nuts naturally contain sugars like glucose in various amounts. Sucrose is also commercially generated from sugar cane and beets.

According to a research, ingesting "natural" sugar might be just as bad for your health as consuming high- fructose corn syrup. Sucrose, a carbohydrate, provides the energy your body needs to perform both mental and physical work. Your body converts foods like starch and sucrose into glucose and fructose during digestion. Your body breaks down food to provide your cells energy. Reduce the fructose and glucose down.

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Answer:

200ml

Explanation:

To determine the final volume of the gas, you can use the ideal gas law, which states that PV = nRT, where P is the pressure of the gas, V is the volume of the gas, n is the number of moles of the gas, R is the ideal gas constant, and T is the temperature in kelvins.

If you know the initial pressure and volume of the gas, and you raise the pressure to a new value, you can use the ideal gas law to determine the new volume.

For example, if the initial pressure of the gas is 20.5 kPa, the initial volume is 400 mL, the number of moles of the gas is n, the temperature is T, and the pressure is raised to 80.5 kPa, you can solve for the final volume as follows:

P1V1 = nRT

P2V2 = nRT

V2 = (P1V1)/P2

V2 = (20.5 kPa * 400 mL)/80.5 kPa

V2 = 200 mL

So, the final volume of the gas is 200 mL.

It's important to note that this calculation assumes that the temperature and the number of moles of the gas remain constant. If either of these variables changes, the final volume of the gas will also be different.

If the rest wavelength of a certain line is 600 nm, but we observe it at 594 nm, then the source is approaching us at 1% of the speed of light.

The speed of light or the speed of light symbolized by c is a universal physical constant that is important in many fields of physics. Its precise value is 299,792,458 meters per second (approx. 3.00×108 m/s), because the length of a meter is defined based on this constant and the international standard of time.[

This speed is the maximum speed that all forms of energy, matter, and information in the universe can travel. This speed is the speed of all massless particles and physical fields, including electromagnetic radiation in a vacuum. According to modern theory, this speed is the speed of gravity (the speed of gravitational waves). These particles and waves move at a speed c regardless of the source of motion or the observer's inertial frame of reference. In the theory of relativity, c is related to spacetime. This constant also appears in the physics equation mass-energy balance E = mc2.[2]

The speed of light propagating through transparent materials such as glass or air is slower than c. The ratio between c and the speed v (the speed of light in a material) is called the refractive index n of that material (n = c  / v). For example, the refractive index of glass is generally around 1.5, meaning that the light in the glass travels at a speed c  / 1.5 ≈ 200,000 km/s; the refractive index of air for visible light is about 1.0003, so the speed of light in air is about 299,700 km/s (about 90 km/s slower than c).

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The velocities of the two bodies are 4.4m/s.

M₁ = 2.5 kg

M₂ = 4.0 kg

V₁ =  7.0 m/s

V₂ = ?

To calculate the momentum before collision P₁:

P₁ = M₁ * V₁

P₁ = 2.5 kg *  7.0 m/s

P₁ = 17.5 kg m/s

The  momentum before collision P₁ = 17.5

To calculate the momentum after  collision P₂:

P₂ = M₂ * V₂

P₂ = 4.0 kg  * V₂

momentum before collision P₁ = the momentum after  collision P₂

                          17.5 kg m/s  = 4.0 kg  * V₂

Making  V₂ subject of the formula we have:

V₂ = 17.5 kg m/s  

              4.0 kg

V₂ = 4.375

V₂ ≈ 4.4m/s

Hence the velocities of the two bodies is 4.4m/s.

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In the situation described, the kinetic energy of the sled is the movement of the sled and its speed. The motion of the body signifies the kinetic energy of the body.

In physics, the kinetic energy ( KE) of an object is the energy that it possesses due to its motion. kinetic energy is the energy of the body by which it moves to the way ahead. energy has two parts one is kinetic energy and the another one is potential. kinetic energy is the energy of the motion of the object and the potential energy of the body is the energy by the height of the body. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. by this particular information, we can consider firmly that in the situation described, the kinetic energy of the sled is the movement of the sled and its speed. The motion of the body signifies the kinetic energy of the body.

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The correct answers are "Heat the magnet up" and "Strike the magnet with a heavy blow".

The domains of the permanent magnet of the magnet are aligned then the permanent magnet is magnetized. When it loses its magnetic field under some condition then it becomes Demagnetized. Demagnetization is to remove the magnetic properties from the magnet.

The permanent magnet can be demagnetized by the following ways:

By hammering or striking it.

By heating a magnet over a curie temperature.

By placing the magnet in the stronger opposite magnetic field.

Therefore, the correct option is both B and C.

Answer:

ecliptic

Explanation:

its actually the intersection of the plane and the Earth's orbit with the celestial sphere.

In a free fall, acceleration doesn't rise. 9.8 m/s2 is roughly the acceleration at the surface of the earth. While the acceleration is constant, the velocity is not.

What transpires during a free fall of an object?

When objects are stated to be falling freely, they are only being pulled downward by gravity and do not experience much air resistance. All objects will fall with the same rate of acceleration under these circumstances, regardless of their mass.

What kind of acceleration does anything undergo during free fall?

The acceleration of an item in free fall is -9.8 m/s/s. (The minus symbol represents a downward acceleration.) Whether it is stated explicitly or not, the acceleration value in the kinematic equations.

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The longest possible distance of hole-in-one is achieved when  the angle of initial velocity is 45⁰ from the horizontal. The highest tree the ball could clear is 104.5 m.

The ball will undergo a projectile motion. The longest possible horizontal distance is achieved when the angle of initial velocity is 45⁰ from the horizontal.

The maximum height occurs when the  vertical component of the velocity is equal to zero, or vy = 0.

The maximum height is:

h_max = vo² sin²θ/2g

Where:

vo = initial velocity = 32 m/s

θ = 45⁰

g = acceleration due to gravity = 9.8 m/s²

Hence,

h_max = 32² x (sin 45⁰)²/ (2x9.8)

h_max = 1,024 x (√2/2)²/ (2x9.8)

h_max = 1024 / 9.8 = 104.5 m

Hence, the highest tree the ball could clear is 104.5 m

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The main goal of a value articulation cycle is to discover, articulate, and enhance your value proposition in order to increase buy-in both internally and externally.

The value chain framework consists of four secondary activities, procurement and purchasing, human resource management, technological development, and business infrastructure, in addition to five primary activities: inbound operations, operations, outbound logistics, marketing and sales, and service.

The alignment of actors, objects, and social contexts that together create a story that legitimises and articulates particular values may be referred to as value articulation processes.

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When 1 kilogram of ice at 0 degrees Celsius is mixed with another substance, it will absorb heat until it melts and reaches its melting point of 0 degrees Celsius.

The amount of heat required to melt the ice is called the heat of fusion, which is typically around 333.55 joules per gram. Therefore, it will absorb approximately 333,550 joules of energy to completely melt.

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Answer:

ultraviolet

Explanation:

The increase in the gravitational potential energy of the man-earth system is 1.117 kJ.

An object's position relative to some reference point, zero, causes it to store a certain amount of energy known as potential energy.

The formula for determining potential energy, denoted by the letter P, is as follows:  

P = mass x gravity x height.

According to the information provided:

The mass (m) of the man (in kilograms) is 114 kilograms

Displacement or height (h) = 1 meter

The acceleration of gravity (g) = 9.8 meters per second squared.  

Therefore, potential energy (P) is 114 kg x 9.8 m/s x 1 m= 1,117.2 joules = 1.117 kJ

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The moment of inertia of the rigid body about an axis perpendicular to the rod and through the center of mass is 0.48 kgm²

The mass of the first particle = 0.2 kg

The mass of the second particle = 0.3 kg

The distance between the mass = 2 m

The moment of inertia between this rigid body can be found using the formula,

            I = m₁m₂r² / (m₁ + m₂)

where I is the moment of inertia

           m₁,m₂ is the mass of the first and second particles

           r is the distance between the particles.

Let us substitute the known values in the above equation, we get

              = (0.2 x 0.3 x 2²) / (0.2 + 0.3)

              = 0.24 / 0.5

              = 0.48 kgm²

Therefore, the moment of inertia of the rigid body is 0.48 kgm²

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Inca civilization invented communications networks, an accounting system, Terraces, and an effective government system whereas the Maya civilization invented the language of hieroglyphs and also an accurate calendar system.

Inca civilization made the invention of communications networks.  The Inca's communication system was remarkably outstanding. They also invented the accounting system, Terraces, Freeze drying, the surgery of the Brain, an effective government system, and Rope bridges. Engineering was the Inca's greatest technological skill.

The best example is their wonderful network of roads. The Incas built a web of roads across the entire empire. They carved staircases and made tunnels to create ways of transportation through steep mountain ranges. Maya civilization also developed a written language of hieroglyphs and also invented the concept of zero. With their expertise in astronomy and mathematics, the Maya developed an accurate calendar system.

so we conclude that Maya and Inca civilizations invented different technologies.

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The acceleration due to gravity on asteroid X is approximately 0.5 m/s². The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity.

To calculate the acceleration due to gravity on asteroid X, you need to first determine the mass of the astronaut. Since weight is a measure of the force of gravity on an object, and the force of gravity is directly proportional to the mass of the object, the mass of the astronaut can be calculated by dividing the weight on Earth by the acceleration due to gravity on Earth.

The acceleration due to gravity on Earth =  9.8 meters per second

      The mass of the astronaut = 500 Newtons / 9.8 m/s^2, 50 Kg

       The equation for gravitational force is F = Gm1m2/r^2,

where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between them . Solving for r, you can calculate that the distance between the               astronaut and the center of asteroid X is approximately 5 meters. That is 0.5 m/s².

Therefore, The acceleration due to gravity on asteroid X is approximately 0.5 m/s². The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity.

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A weather balloon is designed to expand to a minimum radius of 20 m when in flight at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the balloon is filled at atmospheric pressure and 300 K,  its radius at lift-off will be 6.83 m

The radius can be calculate as follows:

P₁ is Initial pressure = 0.03 atm

P₂ is Final pressure = 1 atm

r₁ is Inital radius = 20 m

V₁ is Intial volume of gas = 4/3 x 3.14 x r1^3

V₂ is Final volume of gas = 4/3 x 3.14 x r2^3

T₁ is Initial temperature = 200 K

T₂ is Final temperature = 300 K

Let the radius at the liftoff be r₂

From ideal gas law we have

P₁V₁/T₁ = P₂V₂/T₂

P1V1T2 = P2V2T1

P₁ x (4/3 x 3.14 x r₁³) x T₂ = P₂ x (4/3 x 3.14 x r₂³ )x T₁

P₁ x  r₁³ x T₂ = P₂ x r₂³ x T₁

r₂³ = P₁ x  r₁³x T₂ / P₂  x T₂

r₂³ = 0.03 x 20³ x 300/ 1 x 200

r₂³ = 360 m

r₂ = 6.83 m

Hence, The radius at liftoff is 6.83 m

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A 12 kg book is pushed from rest to final velocity of 10 m/s, the book was pushed with a force of 99.96 N.

In physics, force is an influence that changes the motion of object. A force can cause an object with to change its velocity.

Given, Mass (m) = 12Kg

Initial velocity (U) = 0

Final Velocity (V) = 10 m/s

Distance travelled (s) = 6m

Using formula;

V² = U² + 2as

10² = 0 + 2 x a x 6

100 = 12a

a = 8.33 m/s²

As we know, F = m x a

F = 12 x 8.33

F = 99.96 N

The book was pushed with a force of 99.96 N.

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Harrison's chronometer is in the Flamsteed House at the Royal Observatory in Greenwich.

John Harrison was a self-taught English carpenter and watchmaker who invented the marine chronometer, a device for solving the problem of calculating latitude while at sea.

John Harrison devoted his long life to making the 5 chronometers. The most famous chronometer is the No.4 chronometer.

Harrison's clock achieved one-second accuracy in a month, far better than any clock at the time. To solve the Longitude problem, Harrison planned to design a portable clock that would keep the time in three seconds a day. This would make it far more accurate than the best watches of the time.

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The nickel must be placed at a distance of 2.96 meters from your eyes, in order to have the same angular size of the moon.

We can determine the distance at which the nickel must be placed in order to have the same angular size by using the tangent of the angle as before, where the adjacent is the distance between your eyes and the nickel, so we have, knowing the angular size, and knowing the diameter of the penny "the opposite".

The diameter of a nickel is 21 mm = 21 x 10⁻³

(21 x 10⁻³ / adj) = tan 9.037 x 10⁻³

adj = (21 x 10⁻³) / (tan 9.037 x 10⁻³)

= 2.96 m

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The north end of a magnet in a compass which is installed in the ship align itself with earth's magnetic north which is therefore denoted as option C.

This is referred to as a type of material or object that produces a magnetic field.

Magnetic north on the other hand is referred to as the direction that a compass needle points to as it aligns with the Earth's magnetic field and in this case we were told that the north end of a magnet in a compass which is installed in the ship align itself which is therefore the reason why option C was chosen as the correct choice.

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The factors that make an animal to be preserved as a fossil includes that the fossils such a bones, skull etc can be preserved for longer time and can be studied to analyse their structure living era and behaviors.

Fossils are decomposing plans and animals. They are rich in carbon and can be preserved for a long time. Study of fossils reveals the structural and behavioral characteristics of the organism.

Fossilization can occur through five ways. Which are :preserved remains,permineralization, molds and casts, replacement and compression.

Using fossil samples, it is easy to determine the age of the material rather than comparing with a ancient relative of a living organism. The age of rock can be determined using the measurement of radioactive uranium in the fossils.

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The force body diagram is given below:

Here,

F(N) = Normal force

F = Force

a = acceleration

m = mass

g = acceleration due to gravity

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At 300 K, the energy gap for silicon is 1.1 eV, whereas that of germanium is 0.78 eV.

Wavelength (nm) (nm) All of these places will be along the same line and have the same slope when measured in arbitrarily units (A.U.). Now, when we plug the wavelength value into equation 2 of the Planck-Einstein equation, we obtain the band gap of a P-type monocrystalline silicon wafer, which is 1.127907 eV.

The conduction band is the region of energy where an electron must be in order for it to participate in the conduction of electricity. The band gap or energy gap refers to the separation between the valence band and conduction band.

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The maximum height reached by the ball having initial velocity of 99.4 m/s is 494 meters.

According to the third law of motion , v² = u² + 2gH ,

where v is the final velocity of the ball, u is the initial velocity of the ball, g is the acceleration due to gravity and H is the height reached by the ball.

At maximum height, final velocity, v = 0.

Given that u = 99.4 m/s, g = -10 m/s (as the ball is moving upward). Hence,  0² = 99.4² + 2(-10)H ,20H = 99.4², H = 494.01 meters ~ 494 meters.

The maximum height reached by the ball with initial velocity of 99.4m)s is 494 meters.

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The ion will repel the substance because it has lost two electrons.

An ion is a charged specie. We can see from the question that the ion has twelve positive and ten negative particles.

If there are more positive particles than negative particles, then the ion is positively charged.

If the ion is positively charged, it will repel another positively charged particle because like charges repel while opposite charges attract.

These two ions have a very prominent main difference.

The net electric charge in this case is a prominent difference where positive ions have a net negative electric charge, whereas negative ions actually contain a net positive electric charge.

An understanding of what positive and negative ions are will be more complete if you also know the detailed differences between the two.

Below are some indicators of the difference between positive and negative ions:

1.Net Cost

Net charge became the first indicator used to differentiate between positive and negative ions. In this case, the positive ion is the type of ion that has a negative net charge.

Vice versa, if the negative ion is a type of ion that contains a net charge in the form of a positive charge.

2. Ionization

In the ionization or formation process, positive ions are exothermic while negative ions are more endothermic.

3. Electrode

The electrode is the third indicator to distinguish positive ions and negative ions. During electrolysis, positive ions will be attracted to the anode. Unlike the negative ions which will be attracted to the cathode during electrolysis.

4. Establishment

In ionization or the formation process, positive ions are formed by attracting electrons, whereas for negative ions are formed due to lost electrons.

5. Element Type

Element types are also included in the positive and negative ion distinguishing indicators. In general, positive ions are formed by non-metallic elements, while negative ions are formed by metallic elements.

6. Content Example

The last indicator that can be used to distinguish the two types of ions is to identify the contents in them.

With the groups of substances in it, then later you can determine the difference between the two.

Some of the substances that include positive ions are fluorides, sulfides, chlorides, iodides, bromides, nitrides and hydrides. While negative ion content is found in Sodium, Lead and Iron.

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To see the south celestial pole at your zenith, you would have to be located at a point on the Earth's surface that is directly below the south celestial pole. The south celestial pole is the point in the sky around which the stars appear to rotate in a counterclockwise direction as viewed from the Southern Hemisphere.

The location on the Earth's surface that is directly below the south celestial pole will vary depending on the time of year and the Earth's position in its orbit around the Sun.

However, as a general rule, the south celestial pole is highest in the sky and closest to the zenith for an observer at a latitude of about 90 degrees south. This means that to see the south celestial pole at your zenith, you would have to be at or near the South Pole.

Therefore, It is worth knowing that the south celestial pole is not visible from the Northern Hemisphere, as it is below the horizon for observers located north of the equator. Similarly, the north celestial pole, which is located directly above the North Pole, is not visible from the Southern Hemisphere.

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