d) A Body of mass 12.0 kg is placed on an orange tree 20.0 metres above the ground.
i. Calculate its potential energy with respect to the ground.
ii. If the body is released from this height, what will be its kinetic energy just before it hits the ground.
[Take g = 10 ms2]

The uneven gamete division causes chromosomal abnormalities.

A gamete is a fully developed reproductive or sex cell with haploid chromosomes that has the capacity to mate with another haploid gamete to create a diploid zygote. The fusion (or combining) of two gametes, namely a male and a female gamete, results in the zygote. Fertilization is the process through which two gametes combine to form a zygote.

One of the gametes is typically bigger and non-motile, which is characteristic. It is sometimes referred to as an ovum or an egg cell. The second gamete cell is smaller and motile. It is also known as a sperm cell or a male gamete. In humans, each gamete has 23 chromosomes, and when they fuse, a diploid zygote with 46 chromosomes is created. These reproductive cells are created in the gonads, or reproductive organs, of the male and female animals. The male gametes in seed-bearing plants are the pollen, whereas the female gametes are housed in the plant's ovules. The gamete in plants, however, is not invariably a haploid cell.

Hence, Uneven gamete division causes the chromosomal abnormalities.

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A rope competition is played out between four participants. They both pull on the rope to the right while producing forces between 330 N and 380 N. The other two pull to the left with forces of 320 N and 410 N, respectively.

T2 = 250 and T1 = 250.57 [N] .57[N]

In order to create a free body diagram with all the forces acting on the body, we must first extract all the information they provide about the issue.

The free body diagram and associated forces are shown in the accompanying figure.

The T1 and T2 forces can be found by adding up the forces on the Y-axis; these forces are equal because they are a precondition for the problem. Therefore, this equation can be solved.

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Urban or rural infrastructure can play an important role in a community recreation because these infrastructure is used by people of the community for the recreational purpose.

Urban Community:

The density of population and networks of activities, the cities contain publics buildings as well as government buildings which have organized religion, commerce, social interactions. So these peoples and the buildings provide the focus for communities.

The Urban infrastructure consists of gas distribution, urban transport, primary health services and many other things.

Rural Community:

Agriculture is the main fundamental need for the rural areas people which forms the basis of rural economy. A farmer has to perform various agriculture activities for which he needs the cooperation of his family and usually need a very large area for the farming.

So we can conclude that Urban or rural infrastructure can play an important role in a community recreation because these infrastructure is used by people of the community for the recreational purpose.

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The ball's velocity after it has travelled a total distance of 50.0 meters is 40.63 m/s

The following data were obtained from the question:

We can obtain the final velocity as illustrated below:

v² = u² + 2gh

v² = 25.9² + (2 × 9.8 × 50)

v² = 670.81 + 980

v² = 1650.81

Take the square root of both sides

v = √1650.81

v = 40.63 m/s

Thus, the velocity after travelling 50 m is 40.63 m/s

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The block's oscillation frequency is 1.1 Hz.

The block's distance from equilibrium when the speed is 57 cm/s  is 14.2 cm.

The block's distance from equilibrium at t = 7.0 s  is 10.37 cm.

The oscillation frequency of the block is calculated as follows;

f = 1/2π√(k/m)

f = 1/2π √(9/0.19)

f = 1.1 Hz

ω = 2πf

ω = 2π x 1.1

ω = 6.91 rad/s

x(t) = A cos(ωt + Φ)

ωX sin(Ф) = v

6.91 x 29 sin(Ф) = 116

sin(Ф) = 116/200.39

sin(Ф) = 0.579

Ф = arc sin(0.579)

Ф = 0.62 rad

29 = A cos(6.91 x 0  +  0.62)

29 = A cos(0.62)

29 = A(0.814)

A = 35.63 cm

when the speed is 57 cm/s, the distance of the block is calculated as follows;

ωX sin(Ф) = v

(6.91)X sin(0.62) = 57

X(4.015) = 57

X = 57/4.015

X = 14.2 cm

x(t) = A cos(ωt + Φ)

x(7) = 35.63 cos(6.91 x 7   +  0.62)

x(7) = 10.37 cm

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Answer:

I would interpret it to mean:

Vx = (6 - 0) = 6

Vy = (3.5 - 1) = 2.5

or V = (6, 2.5)

V refers to the vector itself and not its relative position in space

Answer:

pascal

energy,

power,

electric charge,

Explanation:

According to the given data initial volume =0.667 L

Boyle observed that the product of the pressure and volume are observed to be nearly constant. For a perfect gas, the result of volume and pressure is a precise constant. Boyle's Law is the name given to the relationship among pressure and volume in his honor.

Boyle was a modern chemical pioneer in the 17th century, best known for his law of gases. Robert Boyle (1627–1691) is credited with discovering the renowned Boyle's law, which states that a gas's volume decreases with rising pressure and vice versa

Since the change occurs at constant temperature (i.e. an isothermal change), Boyle's law applies,

i.e. p[tex]_1[/tex]V[tex]_1[/tex] = p[tex]_2[/tex]V[tex]_2[/tex]        where p[tex]_1[/tex] = 125 kPa,  p[tex]_2[/tex] = 200 kPa  and  V[tex]_2[/tex]=0 .5L

Hence,                 (150)V[tex]_1[/tex] = (200)(0.5)

from which,          volume V[tex]_1[/tex] = 200×0.5/150=0.6667L

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Resistivity is the resistance between opposite faces of a unit cube.

The electrical resistance of a conductor with a unit cross-sectional area and unit length is called resistivity. Resistivity is a distinctive attribute of any material that may be used to compare different materials based on how well they conduct electric currents. Low conductivity is indicated by high resistance.

The Greek letter rho is frequently used to represent resistance, which is numerically equivalent to the resistance R of a wire-like specimen, multiplied by its cross-sectional area A, and divided by its length l; RA/l. The ohm is the measurement of resistance. Units of ohm-centimeter can be used to represent resistance when lengths are measured in centimeters. The temperature of the material also affects the value of resistivity.

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Answer:

The computer uses 5 of these they are mechanical, sound, heat, light, and electric energy.

Explanation:

hope this helps

Answer:

the right answer is d

Explanation:

The graph is displayed in the following attachment.

The graph shows that the answers to the problem are x = -1.2 and x = 1.7.

From the image, we may deduce that

The graph is displayed in the following attachment.

The graph shows that the answers to the problem are x = -1.2 and x = 1.7.

We must create the graph of the function for the given range of values based on the image (that is for values of x from -3 to 3)

We will first establish the function's table of values.

Values for the function x y -3 in a table 1.33 -2 2 -1 4 0 Definable

1 -4 2 -2\s3 -1.33

(The docx attachment provides a better view.)

Additionally, the function's graph (purple lines) is

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The correct answer is :

P = ρgh yields the hydrostatic pressure, which is accurate.

The pressure a liquid applies to nearby bodies when it is at rest is known as hydrostatic pressure.

Water at rest exerts a force known as hydrostatic pressure. It is caused by the water's continual pressure on the basement walls.

The force that blood applies to blood channel walls is a typical illustration of hydrostatic pressure.

Depending on the liquid's density ('ρ'), the height of the water column ('h'), and the acceleration caused by gravity ('g'), the hydrostatic pressure is indicated by the letter "P" of a liquid column.

Because of this, the parameters and the supplied equation P = gh are both accurate.

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Answer:

section 2

Explanation:

section 2 contains Alkali, Alkaline, Transition, and Post-transition metals

Answer:

Below

Explanation:

Distance is considered a scalar measurement, meaning it does not have direction associated with it.

Displacement is a vector measurement. This means that direction is important and changes the value depending on which way it goes

The question can be solved using the principle of Newton's second law of Motion. Newton's second law of motion  is often stated as F=ma, which means the force acting on an object is equal to the mass (m) of an object times its acceleration.

F=ma

According to the given data,

Force of 20N is applied to the object

acceleration of 5 m/s^2 is obtained on the object

From Newton's second law of motion,

F=ma

20N =m x 5

m=4kg

To obtain an acceleration of 1 m/s^2, the force required will be

F= ma

F= 4 X 1 = 4 N

To obtain an acceleration of 10 m/s^2, the force required will be

F=ma

F= 4 x 10

   = 40 N

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According to the research, the correct option is to refine the original solution design. It is the last part of the technological design process.

It is the process and problem solving using design as a methodological strategy that allows identifying and solving a problem through inductive procedures and logical reasoning.

In this sense, the last part of this process includes what refers to the production of a first model of the solution, which is tested to evaluate its performance, the result of this evaluation must influence the modification or refinement of the original solution design that is implemented in the solution of the problem that gave rise to the generation of the project.

Therefore, we can conclude that according to the research, the correct option is to refine the original solution design. It is the last part of the technological design process.

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The correct answer is option ( A) the ratio of their average speeds (bird 1/bird 2) is 1.0

velocity = distance / Time

Let us assume distance covered by Bird 1 = d

case 1 (Bird 1) :-

time = 6 hours

velocity(Bird1) = d/6 = 0.167*d

case 2 (Bird 2) :-

time = 12 hours

distance is twice of Bird 1 = 2d

velocity(Bird2) = 2d/12 = 0.167*d

now, velocity of Bird1/Bird2 =  (0.167*d)/(0.167*d) = 1.0

So,velocity of (Bird1/Bird2) is  1.0 .

Average velocity / Average speed = Total displacement / Total distance. Remember that the numerator is less than or equal to the denominator. As a result, the ratio is always equal to or less than one. Distance traveled divided by time taken is the most commonly used formula for calculating average speed. The other formula is to add the initial and final speeds together and divide by two.

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Answer:

acceleration =Force/mass

a=1000/200=5m/s

The measurement of Sasha, given the data from the question is 57.57 watts (Option E)

The following data were obtained from the question:

To obtain Sasha's measurement, we shall determine the experimental measurement. This is illustrated below:

Absolute error = Experimental measure - theoretical measurement

2.17 = Experimental measure - 55.4

Collect like terms

Experimental measure = 2.17 + 55.4

Experimental measure = 57.57

Thus, we can conclude that Sasha' measurement is 57.57 watts (Option E)

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A. The car's average velocity (in m/s) in the interval between t = 1.0 s to t = 1.5 s is 1 m/s

B. The car's acceleration (in m/s²) at t = 1.5 s is 0.4 m/s²

C. The speed of the car is increasing with time

Average velocity = total distance / total time

Average velocity = 0.5 / 0.5

Average velocity = 1 m/s

We'll begin by calculating the velocity at t = 1.5 s. This can be obtained as follow:

Velocity = Distance / time

Velocity = 0.9 / 1.5

Velocity = 0.6 m/s

Finally, we shall determine the acceleration . This is shown below:

Acceleration = velocity / time

Acceleration = 0.6 / 1.5

Acceleration = 0.4 m/s²

The acceleration we calculated above (i.e 0.4 m/s²) is positive. This simply indicates that the speed of the car is increasing.

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Missing part of the question:

(a) What is the car's average velocity (in m/s) in the interval between t = 1.0 s to t = 1.5 s?

(b) Using data from t = 1.0 s to t = 2.0 s, what is the car's acceleration (in m/s2) at t = 1.5 s?

(c) Is the car's speed increasing or decreasing with time?

Answer:

See below

Explanation:

The lead swimmer will finish in   44 m / 5 m/s = 8.8 seconds

   the second swimmer has to cover the 44 m PLUS the length he is behind

     the first swimmer in the same amount of time

         (44 m +  1/2 s * 5 m/s) / 8.8 s   = 5.284 m/s

Answer:

90%

Explanation:

The energy efficiency formula runs like efficiency = useful energy output/energy input * 100%.

The energy output here is 600 (300+240) and the input is 600J. However since its heat energy of 60 you won't include that. So you will input the output and the energy input in the formula and you will get 540/600=0.9

So your answer is 90%.

Sorry if its confusing, have a good day! :D

Answer:

hope it help

Explanation:

E1=2Ecosθ=[x2+l2]3/22kq(l)   alongAC;E2=2Ecosθ=[x2+l2]3/22kq(l)   alongDB

So, E1⊥E2. Net field is

E0=E12+E22=[x2+l2]3/222kql=2πε0[x2+l2]3/2ql

The magnitude of the electric field at the center of the square is[tex]√(2 * k * |Q| / L^2).[/tex]

Electric field is a physical field that surrounds electrically charged particles and exerts force on other charged particles within the field. It is defined as the force per unit charge experienced by a test charge in the field.

The magnitude of the electric field at the center of the square is given by the formula:

[tex]E = kQ/2L^2[/tex]

where k is the Coulomb constant.

The distance from the center of the square to each vertex is [tex]L/√2.[/tex]

The electric field due to the charges at the vertices with charge Q is:

[tex]E1 = kQ/(L/√2)^2 = 2kQ/L^2[/tex]

The electric field due to the charges at the vertices with charge -Q is:

[tex]E2 = k(-Q)/(L/√2)^2 = -2kQ/L^2[/tex]

The net electric field at the center of the square is:

[tex]E = E1 + E2 = 2kQ/L^2 - 2kQ/L^2 = 0[/tex]

Therefore, the magnitude of the electric field at the center of the square is zero.

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The correct answer is nuclear fusion, radiation, and conduction.

It is a nuclear process in which energy is produced by colliding light atoms. It is the opposite of fission, which results in the disintegration of heavy isotopes. The sun and other stars produce light and heat through fusion.

According to the energy of the emitted particles, radiation is frequently classified as either ionising or non-ionizing. More than 10 eV is often carried by ionising radiation, which is sufficient to ionise atoms and molecules and rupture chemical bonds.

Conduction is an observable occurrence in all states of matter and is the process of transmitting energy through the motion of particles in touch with one another (solids, liquids and gases). Conductors are substances that permit conduction. Conduction is divided into three categories: conduction of heat, conduction of electricity, and conduction of sound.

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The value of spring constant (k) is 25 N/m.

Conservation of energy, potential energy of a stretched spring, gravitational potential energy, frequency of oscillation in a spring coupled to a mass, and variation of acceleration due to gravity with altitude are the principles necessary to answer the given problem.

To begin, use energy conservation to equal change in gravitational potential energy on mass attached to spring and elastic potential energy of stretched spring. Then, in the equation, substitute the specified numbers and solve for the spring constant. Then, calculate the amplitude by taking half of the value of spring stretching from equilibrium, and the frequency of oscillation by using the calculation for frequency of oscillation in a stretched string in terms of mass and spring constant.

Formula apply

U=mgh

U=1/2kx^2

putting the value of K ,x ,mass and g then

k is 25N/m

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Answer:

+4m/s

Explanation:

You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min, then  velocity is 4 m/s.

When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.

Uniform motion an object is said to have uniform motion when object cover equal distance in equal interval of time within exact fixed direction. For a body in uniform motion, the magnitude of its velocity remains constant over time.

Given in the question you drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min.

The velocity in m/sec is given as 4 m/s.

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The graph C best describes the cliff jumper's vertical displacement as shown in the attachment.

The initial vertical velocity of the cliff jumper would be zero as the cliff jumper runs off the cliff horizontally. As he jumps off, he is subjected to gravitational pull. This increases his velocity with respect to time.

During some of the initial time, the displacement would be lesser as his velocity increases with increase in time. Also the graph is in the 4th quadrant because the vertical displacement is downwards ( Negative ) as the time increases ( Positive ).

Therefore, the graph with a curve that lies in 4th quadrant with a lesser initial displacement is the correct answer.

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Explanation:

Q=mc(T2-T1)

or

q = mcΔT ,

where m is the mass of the sample,

c is the specific heat,

and ΔT is the temperature change.

Q=2.0 × 2000 × 5

Q=20000J⋅kg −1 ⋅K −1

I hoped I helped pls rate as brainliest