Laura and Celia are identical twins. They were adopted at birth by different families and raised in different environments. However, there are a lot of behavioral similarities between them. In the context of developmental psychology, which best explains this phenomenon?

Complete Question

The diagram illustrating this question is shown on the first uploaded image

Answer:

The value is \(\theta = 27^o\)

Explanation:

Generally the distance covered by the ball thrown at angle 45° that did not bounce is mathematically represented as

\(D = v cos (45) * t\)

Here t is the total time duration which is mathematically represented as

\(t = \frac{v sin (45)}{g}\)

This distance distance is also mathematically represented as

\(D = vcos(\theta)* t_1 + \frac{v}{2} cos(\theta )*t_2\)

Here \(\theta\) the angles made as shown in the diagram

Here \(t_1\) is the time before the first bounce which is mathematically represented as

\(t_1 = \frac{v sin (\theta )}{g}\)

\(t_1\) is the time duration before the final point which is mathematically represented as

\(t_2 = \frac{\frac{v}{2} * sin (\theta )}{g}\)

So

\(v cos (45) * \frac{v sin (45)}{g} = vcos(\theta)* \frac{v sin (\theta )}{g} + \frac{v}{2} cos(\theta ) * \frac{\frac{v}{2} * sin (\theta )}{g}\)

=> \(cos (45) sin(45) = cos(\theta)sin(\theta ) + cos(\theta )sin(\frac{\theta}{4})\)

=> \(0.5 = \frac{5}{8} * sin(2\theta )\)

=> \(\theta = 27^o\)

Answer:

b. the electromagnetic spectrum

Explanation:

the electromagnetic spectrum contains all the forms of light, including gamma rays, x-rays, ultraviolet radiation, visible light, infrared, radio waves, microwaves, etc

Answer:

Work is defined as a force doing a movement, for example, if with a force F we move an object a distance D, the work done is:

W = F*D

(note, the force is causing the movement, the product here is a dot product, this means that if the force and the displacement are perpendiculars, the product is zero)

So the examples where there are not work being done may be:

We do not have any movement:

For example, you can go to a wall in your house and push it really hard.

There is a force, but the wall will not move, so we have D = 0

and W = F*D = F*0 = 0

Because we have no motion.

Another case is where the force and the direction of motion are perpendiculars.

If we have for example a car, moving at a constant speed, and you push it sidewise (perpendicular to the direction of movement) we have a force being applied and movement, but those are in different directions (so the force does not cause the movement) so we dont have work being done.

Answer:

atmosphere, gravitational pull, magnetic field

Explanation:

the astroids burn up in the atmosphere, gravitational pull alters the path of the astroids, and the magnanetic field deflects them of path.

Answer:  If the woodpecker drums upon a tree 5 times in one second, then the frequency is 5 Hz; each drum must endure for one-fifth a second, so the period is 0.2 s.

When an object is thrown at an angle from the horizontal, the path followed by the body is called the projectile motion. The duration in seconds that the object is above the height of 14 m is 4.698 s.

Speed is the time rate at which velocity is changing.

Vertical speed component is

V₀y = 52sin 30°= 26 m/s

Given is the height h=14m

Using second equation of motion,

S=ut+ 1/2 at²

Substituting the values, we get

14 = 26t - 4.9t²

4.9t² - 26t +14 =0  

Solving the quadratic equation, we get the time as

taking the positive sign, t =4.698 s

taking the negative sign , t = 0.6082 s

Thus, the duration in seconds that the object is above the height of 14 m is 4.698s.

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Answer:

31

Explanation:

a. The magnitude and direction of the centripetal acceleration and force when he is spinning at constant angular velocity is 8.72 m/s^2 and 654.0 N respectively.

b.  The astronaut is experiencing 0.89 g when moving at constant angular velocity.

c. The torque that is needed to bring the centrifuge to a stop 6875 Nm.

Angular velocity is described as a pseudovector representation of how fast the angular position or orientation of an object changes with time.

The magnitude of the centripetal acceleration and force, we will use the formula: a = v^2 / r, where v is the tangential velocity and r is the radius of the centrifuge.

a = (2pi20m15.02pi/60)^2 / 20m = 8.72 m/s^2

To calculate the force, we will use the formula

F_ = ma, where m is the mass of the astronaut, 75.0 k

F_ = 75.0 kg * 8.72 m/s^2 = 654.0 N

b. To calculate  the number of g's the astronaut is experiencing when moving at constant angular velocity, we will divide the centripetal acceleration by the acceleration due to gravity, 9.8 m/s^2

8.72 m/s^2 / 9.8 m/s^2 = 0.89 g

c.

Torque = I * alpha, where I is the moment of inertia and alpha is the angular acceleration.

I = (1/2) * 5500.0 kg * 20.0m^2 = 55000 kgm^2

The angular acceleration can be found using the formula

Alpha = (change in angular velocity) / (change in time)

The change in angular velocity is 15.0 rpm - 0 rpm = 15.0 rpm and the change in time is 2.0 minutes = 120 seconds

alpha = 15.0 rpm / 120 s = 0.125 rad/s^2

Torque = 55000 kgm^2 * 0.125 rad/s^2 = 6875 Nm

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The velocity of the car 1 can be seen from the calculation as 20 m/s West

A coordinate system or point of view used to observe motion is known as a frame of reference. It can be used as a guide when describing an object's position, speed, and acceleration. Different frames of reference may result in various motion observations.

The relative velocity is the velocity of an object or observer as observed from a particular frame of reference.

We can see that the velocity of the car 1 is;

45 m/s - 25 m/s

= 20 m/s West

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The galaxies that I would most likely find at the center of a large cluster of galaxies is option (b) a giant elliptical galaxy.

It is generally accepted that galaxy mergers are what create giant elliptical galaxies. It is also possible for regular elliptical galaxies to form in this way or through the gravitational collapse of an interstellar gas cloud.

Therefore, The majority of elliptical galaxies are made up of older, low-mass stars with sparse interstellar space and little star formation, and they typically have a lot of globular clusters all around them.

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If A 5kg objects is sliding across a floor at 10m/s.then the work done by friction to bring the 5 kg object to a stop is -250 Joules.

To calculate the work done by friction to bring the object to a stop, we need to determine the change in kinetic energy.

Given:

Mass of the object, m = 5 kg

Initial velocity, u = 10 m/s

Final velocity, v = 0 m/s (object comes to a stop)

The work done by friction can be calculated using the equation:

Work = Change in Kinetic Energy

The change in kinetic energy (ΔKE) can be calculated as:

ΔKE = (1/2) * m * (v^2 - u^2)

Plugging in the values:

ΔKE = (1/2) * 5 kg * (0 m/s)^2 - (10 m/s)^2

= (1/2) * 5 kg * (0 - 100 m^2/s^2)

= (1/2) * 5 kg * (-100 m^2/s^2)

= -250 J

The negative sign indicates that the work done by friction is in the opposite direction of the displacement of the object.

Therefore, the work done by friction to bring the 5 kg object to a stop is -250 Joules.

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The potential energy of the roller coaster is 176,400 J (joules).

The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.

In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).

Using the formula, we can calculate the potential energy:

PE = mgh

= (900 kg)(9.8 \(m/s^2\))(20 m)

= 176,400 J

Therefore, the potential energy of the roller coaster is 176,400 J (joules).

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Answer:

D. Bulb 2 will go out but bulbs 1 and 3 will remain lit.

Explanation:

If switch at B is opened then, Bulb 2 will go out but bulbs 1 and 3 will remain lit. This is because the positive and negative current flow still fully passes through the two closed switches at switch A and C which allows the bulbs to receive both currents and thus allowing it to turn on. When Switch B is opened it cuts off access for the negative charge to get to bulb 2 and without it, bulb 2 will not turn on.

Answer:all 3 bulbs will go out

Explanation:

Just did it and got it right

Weight is best defined as C) the force of gravity on an object.

Answer:

The angular width is "\(1.575\times 10^{-3} \ rad\)" and the linear width is "\(2.835\times 10^{-3} \ m\)".

Explanation:

Given:

Wavelength,

\(\lambda = 630 \ nm\)

or,

  \(=630\times 10^{-9} \ m\)

Slit width,

\(a = 0.8 \ mm\)

or,

  \(=0.8\times 10^{-3} \ m\)

Distance between slit and screen,

\(D = 1.8 \ m\)

As we know,

The central bright fringe's angular height,

⇒ \(\theta = \frac{2 \lambda}{a}\)

       \(= \frac{2\times 630\times 10^{-9}}{0.8\times 10^{-3}}\)

       \(=1.575\times 10^{-3} \ rad\)

and,

The linear width will be:

⇒ \(x_o=\frac{2D \lambda}{a}\)

By substituting the values, we get

        \(=\frac{3\times 1.8\times 630\times 10^{-9}}{0.8\times 10^{-3}}\)

        \(=2.835\times 10^{-3} \ m\)

Answer:

7.34 m

Explanation:

\(u=\text{Initial velocity}=12\ \text{m/s}\)

\(v=\text{Final velocity}=0\)

\(a=g=\text{Acceleration due to gravity}=9.81\ \text{m/s}^2\)

\(s=\text{Displacement}\)

From the equations of motion we have

\(v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-a^2}{2a}\\\Rightarrow s=\dfrac{0^2-12^2}{2\times -9.81}\\\Rightarrow s=7.34\ \text{m}\)

The rock goes 7.34 m up from the point of release.

The rock goes \(30+7.34=37.34\ \text{m}\) from the ground.

Law of conservation of momentum states "The total momentum of all objects interacting with one another remains constant, regardless of the nature of the forces between the objects".

Law of conservation of energy states "Within a closed system, the total amount of energy will remain constant". The equation derived using the Law of conservation of energy is

E =m g H

E = Energy

m = Mass

g = Acceleration

H = Height

The equation derived using the Law of conservation of momentum is

\(m_{1} u_{1} +m_{2} u_{2}\) = \(m_{1} v_{1} + m_{2} v_{2}\)

\(m_{1}\) = Mass of object 1

\(m_{2}\) = Mass of object 2

\(u_{1}\) = Initial velocity of object 1

\(u_{2}\) = Initial velocity of object 2

\(v_{1}\) = Final velocity of object 1

\(v_{2}\) = Final velocity of object 2

Therefore,

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\(\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}\)

Actually Welcome to the Concept of the Kinematics in real world.

So, as given here, we have to find the Mass of the bus from the given momentum, so we get as,

P = m * V

momentum = mass * velocity

here, P= 152625 kgm/s and v= 11.1 m/s

so substituting we get as,

m = 152625 ÷ 11.1 => 13,750 kg

hence,the mass of the bus is 13,750 kg.

Answer:

magsagot kau ng inyo wag kau mag hanap tseee hahahahhahahahahabababab

Answer:

10778292789403987593790

Explanation:

I am a Cow'

D) Speed, direction, or both

Mass doesn’t just CHANGE like that.

Answer:

to meet at a single point

(causing rays of light that are initially parallel to meet at a single point)

hope this helps:)

Explanation:

Answer:

focus

Explanation:

see more here

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Answer:

V = f * λ        Velocity = frequency * wavelength

λ = V / f = 128 m/s / 256 / s= .5 m       is the wavelength

There will be nodes at o, λ/2, λ, 3λ/2      or at intervals of λ/2

The distance between nodes is ".25 m"

Answer:

Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. These types of waves are found globally across the open ocean and along the coast.

Explanation:

Since no work is done, the power exerted is zero. Therefore, the man exerts no power on the wall.

In physics, force is defined as any action that can change the motion of an object or cause an object to accelerate. Force is a vector quantity, meaning that it has both magnitude (size or strength) and direction. The unit of force in the International System of Units (SI) is the Newton (N), which is defined as the amount of force required to accelerate a mass of one kilogram at a rate of one meter per second squared (1 N = 1 kg × 1 m/s^2). Force can be measured using a variety of instruments, such as spring scales, strain gauges, or force plates. Some common types of forces include gravitational force, electromagnetic force, frictional force, and normal force. The study of forces and their effects on the motion of objects is known as mechanics and is a fundamental concept in physics.

Here,

a. The man does not do any work on the wall because the wall does not move. Work is only done when there is a displacement in the direction of the force applied.

b. Since no work is done, no energy is used or transferred.

c. The power exerted by the man can be calculated using the formula:

Power = Work / Time

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Answer:

Explanation:

True

The Best answer from the options is TRUE

A surfactant with a Hydrophile-lipophile Balance value of 18 is a solubilizing agent because a hydrophilic-lipophilic balance is used to measure the degree /level of hydrophilicness or liphophilicness of a Surfactant is at . and the

method used by the Hydrophile-lipophile balance to achieve this is by calculating the values for the different regions of the surfactant.

Hence a Surfactant with a hydrophile-lipophile Balance value of 18 is expected to function as a solubilizing agent.

Attached below is the HLB

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