Describe each type of biotechnology:
Genetic engineering:
Cloning:
Artificial selection:

Answer:

a. 0.882 N b. 9.8 m/s² c. 6.42 m/s

Explanation:

a. The net force acting on the ball is its weight W = mg were m = mass of ball = 90 g = 0.090 kg and g = acceleration due to gravity = 9.8 m/s²

W = mg = 0.090 kg × 9.8 m/s² = 0.882 N

b. The acceleration = g = acceleration due to gravity = 9.8 m/s² since it is falling freely

c. Using v² = u² + 2as where v = final velocity of ball, u = initial velocity of ball = 0 m/s, a = acceleration of ball = 9.8 m/s² and s = height = 2.1 m. Substituting the values of the variables, we ave

v² = u² + 2as = 0² + 2(9.8 m/s²) × 2.1 m = 41.16

v = √41.16 = 6.42 m/s

Final answer:

The period of oscillation for a small amplitude pendulum with a length of 2.5 meters can be calculated using the equation T = 2π√(L/g). Using the accepted value of g, the period can be determined to be approximately 3.18 seconds.

Explanation:

The period of oscillation for a small amplitude pendulum can be calculated using the equation T = 2π√(L/g), where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity. In this case, the length of the pendulum is given as 2.5 meters. Plugging in the values, we have T = 2π√(2.5/g).

To find the value of g, we can use the accepted value of 9.8 m/s². Calculating T using this value, we can find the period of the pendulum.

Example Calculation:

T = 2π√(2.5/9.8) = 2π√(0.255102) = 2π(0.5051) ≈ 3.18 seconds

The change in electrical potential energy of the system can be calculated using the equation: ΔPE = q * ΔV, where ΔPE is the change in potential energy, q is the charge, and ΔV is the change in electric potential. In this case, the change in electrical potential energy of the system is 0.060 J.

The change in electrical potential energy of the system can be calculated using the equation:

ΔPE = q * ΔV

Where ΔPE is the change in potential energy, q is the charge, and ΔV is the change in electric potential.

In this case, the charge q is 12 μC and the change in electric potential is given by ΔV = E * d, where E is the electric field strength and d is the displacement.

Plugging in the values, we get:

ΔPE = (12 μC) * (250 N/C) * (20.0 cm) * (1 m/100 cm)

Simplifying the units and the calculation, the change in electrical potential energy of the system is 0.060 J.

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To find the change in electrical potential energy, calculate the work done by the electric field as the charge moves along the x-axis. The work done equals 6 × 10⁻⁴ J, which is the change in electrical potential energy.

Change in Electrical Potential Energy

To determine the change in electrical potential energy of the system, we need to consider the direction and magnitude of the electric field and the charge's movement.

The electric field extbf(E) is directed along the positive x-axis with a magnitude of 250 N/C. The charge q is 12 μC (microcoulombs), or 12 × 10-6 C.

The initial position of the charge is at the origin (0,0), and the final position is (20.0 cm, 50.0 cm). Convert these to meters: (0.2 m, 0.5 m). The electric field works only along the x-axis, so we only need the change in the x-coordinate.

Work done by the electric field is defined as:

W = qEΔx

Here, Δx = xfinal - xinitial = 0.2 m - 0 m = 0.2 m.

Now, substitute the values:

W = (12 × 10⁻⁶ C) * (250 N/C) * (0.2 m)

W = 12 × 10⁻⁶ * 250 * 0.2

W = 12 × 10⁻⁶ * 50

W = 600 × 10⁻⁶ J

W = 6 × 10⁻⁴ J

This work is equal to the change in electrical potential energy (old{ΔU}) of the system.

The change in electrical potential energy of the system is 6 × 10⁻⁴ Joules.

Answer:

the bell has potential energy equal to,

18 x 9.8 x 45 = 7938 joules

Answer:

Explanation:

According to columbs law;

F = [tex]kq1q2/r^{2}[/tex]

F is the attractive or repulsive force between the charges = 12N

q1 and q2 are the charges

let q1 = - 8.0 x 10^-6 C

q2=?

r is the distance between the charges = 0.050m

k is the coulumbs constant =9*10⁹ kg⋅m³⋅s⁻⁴⋅A⁻²

On substituting the given values

12 = 9*10⁹*( - 8.0 x 10^-6)q2/0.050²

Cross multiplying

[tex]0.03=9*10^{9}* -8.0*10^{-6} q2\\0.03 = -72*10^{3} q2\\q2 = \frac{0.03}{ -72*10^{3}} \\q2 = -4.17*10^{-7}C[/tex]

Answer:

q₂ = + 4.17 x 10⁺⁷ C

Explanation:

From Coulomb's Law, we know that force of attraction or repulsion between two charges is given by:

F = kq₁q₂/r²

where,

F = force = 12 N

k = Coulomb's Constant = 9 x 10⁹ Nm²/C²

q₁ = magnitude of 1st charge = 8 x 10⁻⁶ C

r = distance between charges = 0.05 m

q₂ = magnitude of second charge = ?

Therefore,

12 N = (9 x 10⁹ Nm²/C²)(8 x 10⁻⁶ C)(q₂)/(0.05 m)²

0.03 Nm² = (72000 Nm²/C²)(q₂)

q₂ = (0.03 Nm²)/(72000 Nm²/C²)

q₂ = + 4.17 x 10⁺⁷ C

It is a positive charge, because there is attraction between opposite charges only.

Any force that's not cancelled by another force, with identical strength but pointed the opposite way, will cause a change in the object's speed or direction (or both).

When that happens, we say that the forces on the object are "unbalanced", and the object is experiencing "acceleration".

Forces cause changes in an object's motion, including starting movement, changing speed, or altering direction. Types of forces that can initiate these changes are spring forces and applied forces, following Newton's laws of motion.

Forces are essential concepts in physics responsible for causing changes in the motion of objects. They can produce different effects, such as causing an object to start moving, changing its speed or direction, or even deforming it. Types of forces include gravity, spring forces, and applied forces, derived from various actions like pushing, pulling, or thrust.

According to Newton's laws, a force is defined as any interaction that, when unopposed, will change the state of motion of an object. This means that if no other forces are at play, a single force can accelerate an object. Moreover, when a force is applied at an angle to the direction of motion, it can change both the speed (magnitude of velocity) and the direction of the object. The component of force in the direction of motion affects speed, while the perpendicular component affects direction.

An everyday example of force is the action of a garage door opener. When you press the button, your finger is not directly applying force to the door, but it triggers a mechanism that applies force to move the door. Similarly, pulling on a leash exerts force that changes the motion of a reluctant dog; the forces are between the leash and the dog, not directly from your hand.

Answer:

lymph nodes

tonsils and adenoids

thymus

Explanation:

-Arteries are the blood vessels that take the blood that contains oxygen from the heart to the tissues and are part of the circulatory system.

-Lymph nodes are glands that take care of filtering the fluid that goes through the lympathic system and are also important for the functioning of the immune system.

-Capillaries are blood vessels that connect the veins and arteries and are part of the circulatory system.

-Tonsils and adenoids are located in the throat and they help protect the body from diseases and they are part of immune system and the lympathic system.

-Veins are the vessels that take the blood to the heart and they are part of the circulatory system.

-Thymus is an organ in which the T cells develop and they help protect the body against virus and bacteria and it is part of the immune and lympathic systems.

According to this, cells or organs that are considered to be part of both the immune and lymphatic systems are:

lymph nodes

tonsils and adenoids

thymus

Answer:

B), D), & E)

Explanation:

Edge 2021

Answer:

The kinetic energy lost by the electron ΔK.E is 3.5244 × 10⁻¹⁵ J

Explanation:

Here we have;

Change in electric potential, ΔV, of the screen = 25000 V

The energy gained by the electron can be derived from the relation of change in electrical potential energy, ΔEPE, as follows;

ΔEPE = -Charge, q × ΔV

Therefore, since charge, q = -1.602 × 10⁻¹⁹ C we have;

ΔEPE = -(-1.602 × 10⁻¹⁹ C) × 25,000 V = 3.5244 × 10⁻¹⁵ C·V =

Also, since the electron is accelerated to the screen by the electrical potential energy, we have;

From the principle of conservation of energy in a given system;

The change in potential energy, ΔEPE of the electrons = Change in kinetic energy, ΔK.E, of the electrons3.5244 × 10⁻¹⁵ J

[tex]\Delta KE = \frac{1}{2} \cdot m \cdot v_f^2 - \frac{1}{2} \cdot m \cdot v_i^2[/tex]

Where:

m = Mass of the electron = 9.11 × 10⁻³¹ kg

[tex]v_i[/tex] = Initial velocity of the electrons = 0 m/s (electrons at rest)

[tex]v_f[/tex] = Final velocity of the electrons

[tex]\therefore \Delta KE = \frac{1}{2} \cdot m \times (v_f^2 - \cdot v_i^2)[/tex]

[tex]\therefore \Delta KE = \frac{1}{2} \cdot m \times (v_f^2 - 0) = \frac{1}{2} \cdot m \cdot v_f^2[/tex]

Hence;

The kinetic energy lost by the electron ΔK.E = ΔEPE = 3.5244 × 10⁻¹⁵ J.

Great Britain's climate is milder than Newfoundland's primarily due to the warming influence of the Gulf Stream, which brings warm tropical waters to the western coast of Europe. Additionally, the surrounding waters and geographical features also have a moderating effect on the climate.

The climate in Great Britain is milder than in Newfoundland due to the influence of the Gulf Stream. This ocean current transports warm water from the tropics northward along the western coast of Europe, which moderates temperatures.

Great Britain benefits from this effect, having a type C climate characterized by more temperate weather despite its northern latitude. On the other hand, Newfoundland, located on the eastern coast of Canada, does not receive the same warming benefits of the Gulf Stream, resulting in harsher winters and a more extreme climate.

Different geographical features also contribute to climatic variations. The presence of surrounding water bodies and the moderating effect of the ocean help to maintain a more stable, moderate climate. Coastal areas are generally warmer in the winter and cooler in the summer due to the ocean's temperature regulating properties. Meanwhile, Newfoundland experiences a colder climate partly because it is further from the moderating influence of the Gulf Stream and also because it is more removed from other major bodies of water compared to Great Britain.

Answer:

Because they don’t happen every month, a lunar eclipse is a special event. Unlike solar eclipses, lots of people get to see each lunar eclipse. If you live on the nighttime half of Earth when the eclipse happens, you’ll be able to see it. Remembering the Difference. It’s easy to get these two types of eclipses mixed up.

Explanation:

Final answer:

Multiple factors, including visibility, atmospheric conditions, and Earth's shadow, can cause each lunar eclipse to look different.

Explanation:

A lunar eclipse can look different each time due to several factors:

These factors combined contribute to the unique appearance of each lunar eclipse, making each one a distinct astronomical event.

Neither form nor genre usually determines the other. They coexist and influence each other to create diverse literary works. Form is a tool authors use to express their ideas and stories, while genre provides a framework and context within which these ideas are explored.

The relationship between literary form and genre is a nuanced one, and it's not accurate to suggest that one usually determines the other. Instead, they are interrelated but serve different functions in the world of literature.

Form and Genre Defined:

Form: Literary form refers to the structure or style in which a piece of writing is composed. It encompasses elements such as rhyme scheme, narrative perspective, and literary techniques.

Genre: Genre, on the other hand, refers to the category or classification of literature based on shared characteristics and conventions. Common literary genres include fiction, non-fiction, poetry, drama, mystery, romance, science fiction, and more.

Interplay Between Form and Genre:

Form's Influence on Genre: While form can influence genre to some extent (e.g., sonnets are a form often used in love poetry), it doesn't rigidly determine it. Many genres can be written in various forms. For instance, a mystery novel can be written in first-person narrative form or third-person omniscient form.

Genre's Influence on Form: Genre does influence form by setting certain expectations. For example, a sonnet is expected to follow specific rhyme and meter patterns because it's often associated with love poetry.

Synonymy Misconception:

It's incorrect to consider form and genre as synonyms. They are distinct but interconnected aspects of literature.

Literature can exist in various forms within a single genre, and a single form can be used across different genres.

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Form usually determines the genre, with literary form referring to structure and organization, and genre involving characteristics and conventions of a literary work.

The statement that best describes the relationship between literary form and genre is that Form usually determines the genre. Literary form refers to how a narrative is structured and organized, such as through sentences, paragraphs, dialogue, or poetic lines and stanzas. On the other hand, genre is a set of characteristics that make up a type of literary work, which could include conventions, themes, styles, and settings. Genres shape audience expectations and experiences, while forms provide the vessels through which stories are communicated.

For example, fiction is typically written using sentences and paragraphs as its form, expressing stories through prose. Poetry, with its distinct form, utilizes lines and stanzas to create lyrical and rhythmic expressions. Drama, as a form, is predominantly written in dialogue and designed for performance.

The choice of form can influence and sometimes determine the genre, as certain forms fit better with specific genres due to their unique characteristics and reader expectations. Hence, form and genre work together to create a cohesive and identifiable work of literature.

Answer:

Explanation:

Given that,

Kinetic energy of an automobile is 2300J

K.E = 2300J

The formula for kinetic energy is

K.E = ½mv²

So, if the speed of the automobile is increased by 6, what is the kinetic energy

Now v' = 6v.

The mass of the automobile is constant.

Therefore, the kinetic energy is

K.E' = ½mv'²

Where v' = 6v

K.E' = ½m(6v)²

K.E' = ½m × 36v²

K.E' = 36 × ½mv²

Where, from above ½mv² = 2300J

Then,

K.E' = 36 × 2300 = 82,800J

The kinetic energy of the automobile when it increase it's speed is 82,800J

When the automobile moves with six times the initial speed, its kinetic energy will be 82800 J.

The kinetic energy (KE) of an automobile is given by the formula:

[tex]\[ KE = \frac{1}{2}mv^2 \][/tex]

where[tex]\( m \)[/tex]is the mass of the automobile and [tex]\( v \)[/tex] is its velocity.

If the automobile's kinetic energy is 2300 J at a certain speed, then we can denote this initial kinetic energy as [tex]\( KE_{initial} \)[/tex]and the initial speed as[tex]\( v_{initial} \)[/tex]. We have:

[tex]\[ KE_{initial} = \frac{1}{2}mv_{initial}^2 = 2300 \, \text{J} \][/tex]

When the automobile moves with six times the initial speed, its new speed is [tex]\( v_{new} = 6v_{initial} \).[/tex] The new kinetic energy[tex]\( KE_{new} \)[/tex]can be calculated using the same formula:

[tex]\[ KE_{new} = \frac{1}{2}m(6v_{initial})^2 \] \[ KE_{new} = \frac{1}{2}m \cdot 36v_{initial}^2 \] \[ KE_{new} = 36 \cdot \frac{1}{2}mv_{initial}^2 \] \[ KE_{new} = 36 \cdot KE_{initial} \][/tex]

Since [tex]\( KE_{initial} = 2300 \, \text{J} \)[/tex], we substitute this value into the equation:

[tex]\[ KE_{new} = 36 \cdot 2300 \, \text{J} \] \[ KE_{new} = 82800 \, \text{J} \][/tex]

The answer is: 82800.

Answer:

A

Explanation: The bubbles will shrink , some may vanish. SInce the bottle is unopened , squeezing the bottle will increase the pressure on the ca p.

Answer:

B) The bubbles will grow, and more may appear.

Explanation:

Answer:

True

Explanation:

This is because least resistance would allow more current to pass through it. Since current, I is inversely proportional to resistance, R.

Answer:

No, only metal with magnetic properties.

Explanation:

Brass, Gold, Silver, are just some examples of metal magnets cannot stick on.

~

Answer:

The image distance is 17.56 cm

Explanation:

We have,

Height of light bulb is 3 cm.

The light bulb is placed at a distance of 50 cm. It means object distance is, u =-50 cm

Focal length of the lens, f = +13 cm

Let v is distance between image and the lens. Using lens formula :

[tex]\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{13}+\dfrac{1}{(-50)}\\\\v=17.56\ cm[/tex]

So, the image distance is 17.56 cm.

Final answer:

Explanation on how to calculate the image distance for a light bulb placed 50 cm away from a thin convex lens with a 13 cm focal length.

Explanation:

The image distance for the light bulb placed 50 cm away from a thin convex lens with a focal length of 13 cm can be calculated using the lens formula:

1/f = 1/do + 1/di

Where:

f = focal length of the lens (13 cm)

do = object distance from the lens (50 cm)

Solving for di, the image distance would be around 15.62 cm.

Answer:These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.

Explanation:

Final answer:

The two forces involved in an interaction are contact forces and field forces; contact forces require physical contact, like the Coulomb force resulting in friction, while field forces, such as gravitational and electromagnetic forces, act at a distance.

Explanation:

The two forces involved in an interaction are commonly referred to as contact forces and field forces. Contact forces occur due to direct physical contact between two objects. An example of this is the Coulomb force, which occurs between the charges in atoms and molecules in close proximity, such as when a baseball hits a bat. On a larger scale, these forces are experienced as the force of friction and the normal force.

In contrast, field forces act without the necessity of physical contact; they occur because of the presence of a field in the space around an object. Examples of field forces include the gravitational force, which is due to mass, and the electromagnetic force, which occurs between charged particles and can manifest as either electrostatic or magnetic forces. Both of these types of forces, contact and field forces, are essential for understanding the interactions between objects in physics.

Answer:1.8

Explanation:

Critical angle=c=34.6

Refractive index =n

n=1/sinc

n=1/sin34.6

n=1/0.5678

n=1.8

Refractive index is 1.8

The refractive index of the ruby is 1.8

The refractive index of an optical medium is defined as a dimensionless number indicating the light bending ability of that medium which determines how much the path of light is bent or refracted when entering the material.

Refractive index can be expressed as:

[tex]n=\frac{c}{v}[/tex]

n= Refractive index

[tex]{c}[/tex]= Speed of light

[tex]{v}[/tex]=Phase velocity of light

It can also expressed as:

n=1/sinc

For above given information, critical angle=c=34.6

Refractive index =n= 1/sin34.6

n=1/0.5678

n=1.8

Thus, the refractive index of the ruby is 1.8

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Answer:

Astronomy is the branch of science that deals with celestial objects and space, including the physical universe.

Explanation:

Hope this helps :)

Answer:The definition of astronomy is the scientific study of matter outside of the atmosphere of the Earth including stars, planets and what they are made of and how they move.

Explanation:

Answer:use the triangle formula

Explanation:

Answer:

0.0815

Explanation:

Mechanical advantage is output force/input force. So all you have to do is 55.0N/675N ~ 0.0815

Hope this helped!

Final answer:

The mechanical advantage of the bottle opener is the ratio of the output force to the input force, resulting in a mechanical advantage of approximately 12.27.

Explanation:

The mechanical advantage (MA) of a simple machine is the ratio of the output force to the input force. In this scenario with the soda bottle opener, you are given an output force of 675 N and an input force of 55.0 N. To calculate the mechanical advantage, you divide the output force by the input force:

MA = Output Force ÷ Input Force

MA = 675 N ÷ 55.0 N = 12.27

The bottle opener has a mechanical advantage of approximately 12.27, meaning the force exerted on the cap is about 12.27 times greater than the force applied by the user.

Answer:

5.11 kg

Explanation:

Hooke's law states that stress is directly proportional to strain. It can be represented by the equation:

F = -kx

Where x is the displacement of the spring’s end from its equilibrium position, F is the force applied to the spring, k is a constant known as spring constant.

At first a force (F) of 62 N i used to stretch a spring by 12 cm (x).

Substituting into Hooke's equation:

F = kx

k = F/x = 62 / 12 = 5.17 N/cm

The spring is then held vertically and an object. The object is acted by upon by acceleration due to gravity since it is vertically upward. Therefore the force created by the object F = mg where g = acceleration due to gravity = 9.8 m/s². It causes a stretch (x) of 9.7 cm

Therefore:

mg =  5.17 N/cm × 9.7 cm

9.81m = 50.117

m = 50.117 / 9.81 = 5.11 kg

Answer:

More than 150 meters

Explanation:

Answer:

more than 150 meters

Explanation:

Answer: C

Explanation: 1+7 = 6+2 =8 -protons

1+15 = 12+4 = 16 -  protons +neutrons

The complete equation for the given nuclear reaction can be represented as:

[tex]\ce {^{1}_{1}H}+ \ce {^{15}_{7}N}\longrightarrow \; \ce {^{12}_{6}C} + \ce {^{4}_{2}He}[/tex]

In nuclear chemistry, a nuclear reaction can be defined as a nuclear process in which two nuclei and subatomic particles, collide to produce one or more new nuclides. Therefore, a nuclear reaction will be caused a transformation of one nuclide to another nuclide.

The term "nuclear reaction" can be referred either to a change in a nuclide by collision with a subatomic particle or to a spontaneous change of a nuclide without any collision.

The given incomplete reaction can be represented as:

[tex]\ce {^{1}_{1}H}+ \ce {^{15}_{7}N}\longrightarrow \; ? + \ce {^{4}_{2}He}[/tex]

The sum of the mass number on both sides will be equal:

1 + 15 = A + 4

A = 16 - 4

A = 12

The sum of the atomic numbers on both sides of the arrow will be equal :

1 + 7 = Z + 2

Z = 8 - 2

Z = 6

Therefore, the missing nuclide is ¹²C₆. The complete nuclear equation will be written as:

[tex]\ce {^{1}_{1}H}+ \ce {^{15}_{7}N}\longrightarrow \; \ce {^{12}_{6}C} + \ce {^{4}_{2}He}[/tex]

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Answer:

unsure

Explanation:

Final answer:

The force that knocks an object moving forward sideways is an external force, as described by Newton's first law of motion. This could be due to a collision, friction, or other forces changing the object's direction, like the effect felt during a sharp turn in a car.

Explanation:

The force you are asking about, when an object moving forward gets knocked sideways, is typically called an external force. In accordance with Newton's first law of motion, which states that an object will maintain its state of motion unless acted upon by a net external force, this sideways force changes the object's state of motion. In real-world situations, several forces can act as this external force, such as friction, tension, normal force, or even another object colliding with the one in motion.

For example, if an object like a rolling ball is knocked sideways by another ball, the sideways force is the result of the collision between the two balls. This changes the direction of the ball's momentum, creating a new motion path. Similarly, when a car makes a sharp turn, the force exerted by the friction between the tires and the road surface is what changes the direction of the car's velocity. This is why you might feel a force pushing you sideways in the seat, often referred to as a centrifugal effect, which is in fact the inertia of your body wanting to continue in a straight line.