Adolescents develop what is referred to as a(n) __________, which is why they struggle with social relationships during this stage of development. A. Personal invincibility B. Increased sensitivity C. Self-perception D. Imaginary audience Please select the best answer from the choices provided A B C D.

Answer:

40

as it goes up 2second

20+20=40

Answer:

v= 1.5286624 ml

Explanation:

d=m/v

despejar V= m/d

v= 1.2g/0.785g/ml

v=1.5286624 ml

Answer:

-34.3m/s

Explanation:

first lets find the time befor it hit the ground by using free fall equation and we know we use that in one condition which is a constant acceleration in this case its a gravitational acceleration which is -9.8

[tex]h = \frac{1}{2} g {t}^{2} [/tex]

[tex]t = \sqrt{ \frac{2 \times 60}{9.8 } } = 3.5s[/tex]

now we know that the initial velocity its zero :

so applu the another kinematic equation which is

[tex]v = u - gt[/tex]

v is final velocity and u is the initial velocity and its equal zero.

v = - 9.8 × 3.5 = - 34.3

[tex]\huge\sf\red{A}\pink{N}\orange{S}\green{W}\blue{E}\gray{R}[/tex]

Given,

mass of the ball, m=2 kg ;

height of the ball, h=60 m

The initial potential energy of the ball,

[tex]{\boxed{\underline{\sf{E_{p}=m g h=(2)(10)(60)=1200 \mathrm{~J}}}}[/tex]

When the ball reaches the ground, its potential energy becomes zero as it is entirely converted into its kinetic energy ( [tex]{\sf{E_{K}[/tex] ), i.e.,

[tex]{\Rightarrow{\sf{E}_{\sf{k}}=1200 \mathrm{~J}}}[/tex]

If v is the velocity attained by the ball just before reaching the ground,

[tex]{\Rightarrow{\sf{E}_{\sf{k}}=\frac{1}{2}{mv}^{2}}}}[/tex]

[tex]{\sf\Rightarrow{v=\sqrt{\frac{2 \sf{E}_{\sf{k}}}{\sf{m}}}=\sqrt{\frac{2 \times 1200}{2}}}[/tex]

[tex]{\Large{\mid{\underline{\overline{\Rightarrow{\sf{34.64\:m/s}}}}\:{\mid}[/tex]

Answer:

Thus, to plan a classical concert hall that satisfies the acoustic performance, the acoustic design and evaluation should be conducted considering the acoustic parameters (i.e., reverberation time (RT), clarity (C80), and lateral fraction (LF)) of the classical music from the early

In design considerations, such as arched structures and ceiling, wood should be stressed to be prevent vibrations

Explanation:Hope this helps

Answer:

1. The distance of image from the plane mirror is same as the distance of object (person) from the plane mirror but the image is formed behind the mirror.

v=u=3 m

Thus distance between image and the person d=u+v=3+3=6 m

2.A concave mirror has a radius of curvature of 1.0 m. An object is placed 2.0 m in front of the mirror. Can you determine the location of the image (in cm)

1/v = 1/f - 1/u = 1/50 - 1/200 = 4/200 - 1/200 = 3/200

v = 200/3 c

NUMBER 3 Ans: 18.75 cm.

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Answer:

important – mass, and distance.

Answer:

14J

20000J

200J

Explanation:

formula :W=FS

W:work done

F:force (N)

S:displacement moved in direction of force (m)

1) 20N×0.7m

=14J

2) 400N×50m

= 20000J

3) 10N×20m

=200J

Answer: A

Explanation:

Answer:

255 [m].

Explanation:

1) the formula is (d - requred distance, V₀ - initial velocity, t - elapsed time, a - deceleration):

[tex]d=V_0t+\frac{at^2}{2};[/tex]

2) according to the formula above the required distance is:

d=10*30-0.5*0.1*900=300-45=255 [m].

Apply second equation of kinematics

[tex]\\ \tt\longmapsto s=ut+\dfrac{1}{2}at^2[/tex]

[tex]\\ \tt\longmapsto s=10(30)+\dfrac{1}{2}(-0.1)(30)^2[/tex]

[tex]\\ \tt\longmapsto s=300+(-0.1)(450)[/tex]

[tex]\\ \tt\longmapsto s=300-45[/tex]

[tex]\\ \tt\longmapsto s=255m[/tex]

[tex] \tt \: SOLUTION \leadsto[/tex]

It is dangerous to move towards the top of the branches of a tree because The exposed wood tissues begin to decay or either are too dilute. Due to which the branch can break and we can fall Down.

Answer:

Explanation:

It is dangerous to move towards the top of a tree because as we will move towards the top the branch gets thinner and thinner and we can fall down because of the breaking of the branch.

Answer:

1. as initial speed is 0 and acceleration is g=9.8 m/s^2 velocity at any time

2. 15m

3. gravity and force

4. the flower pot would break from impact

Explanation:

Using the clues in the photo and reading the questions this should be the best answer. Good Luck!

Explanation:

Sun shining hope i help you! :)

Answer:

Central City is the county seat and the most populous municipality of Gilpin County. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth".

The total distance you would have covered is equivalent to going around the earth 22 times.

The total distance traveled at a given speed and time of motion is calculated as follows;

Distance = speed x time

[tex]Distance = \frac{25 \ miles}{day} \times \frac{365 \ days}{1 \ year} \times 60 \ years\\\\Distance = 547, 500 \ miles[/tex]

The distance round the earth or circumference of the earth of the earth has been given as 25,000 miles

[tex]n = \frac{547,500}{25,000} \\\\ n = 21.9 \ times \ \approx 22 \ times[/tex]

Thus, the total distance you would have covered is equivalent to going around the earth 22 times.

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Air Conditioner.

Washing Machine.

Refrigerator.

Induction Stove.

Vacuum Cleaner.

Camera

Microwave Oven.

Water Purifier

Hii :))

Force = mass × acceleration

630 = 45 × acceleration

630/45 = acceleration

14 m/s² = acceleration

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Question:Where do most astronomers think the solar system formed from?.

Answer: Most Astronomers think the solar system formed from a Nebula

Answer:

A Pulse Wave is a short, non periodic, wave formed by a single input of energy rather than a continuous or repeated input of energy.

Explanation:

A pulse wave or pulse train is a kind of non-sinusoidal waveform that includes square waves and similarly periodic but asymmetrical waves. It is a term is used in synthesizer programming, and is a typical waveform available on many synthesizers.

Answer:

An object orbiting the sun in a circle can be said to be. Always accelerating. :)

Answer:

140km/hr

Explanation:

This is a simple converstion.

We know that the bus travels 350km/150min.

We want to know the speed in km/h. All we need to know is that per 1 hr there are 60 min.

350km/150min * 60min/1hr  (we want to make sure that the value we are trying to eliminate, in this case the minute, is on the opposing side.)

(350*60)/150 = 21,000km/150hr

let's simplify to only per 1 hr.

21000/150 = 140

150/150 = 1

Therefore, the speed of the bus is 140km/hr

A bus travels a total of 350 km in 150 minutes, so the average speed of the bus in km/hr will be 140 km/hr.

The object's average speed is how far it travels overall in a predetermined amount of time. The scalar quantity represents the average speed. It has no direction; instead, magnitude is used to describe it.

Average Speed =  [tex]Total \ Distance/Total\ time[/tex]

An indicator of a vector is average velocity. Average velocity is calculated by dividing the change in position or displacement by the intervals during which it occurs. The average velocity may be positive or negative depending on how the displacement is dispersed. The standard international unit of average velocity is meters per second (m/s).

Average Velocity = [tex]Total \ Displacement/Total \ Time[/tex]

According to the question, the given values are :

Distance, d = 350 km

Time, t = 150 minutes or

t = 2.5 hours.

Average Speed = 350/2.5

Average speed = 140 km/hr

Hence, the average speed of the bus will be 140 km/hr.

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The change in velocity of the baseball is 39.72 m/s

This is the difference between the final and the initial velocity of a body.

To calculate the change in velocity of the ball, we use the formula below.

Where:

Make Δv the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, The change in velocity of the baseball is 39.72 m/s

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Answer:

Distance for which the balloon has been pulled by the child = 12 meter

Force applied by the child to pull the balloon = 1.0 Newton

The angle below horizontal = 60 degree

These information's are already given in the question. Based on the above information's the answer to the question can be easily determined.

We know that

Work done = Force * Distance * Cos(60)

                  = 1 * 12 * (1/2)

                  = 1 * 6

                  = 6 Joules

So the work done by the child is 6 joules. I hope the procedure is clear enough for you to understand. Based on the above mentioned procedure, you can always solve problems of similar kind without taking any outside help.

Explanation:

The maximum height of the ball if A ball is launched at 5.5 m/s at 76 degrees above the horizontal is 1.45 meters.

Distance, regardless of the direction of the travel, is the entire path that an object in motion has taken. Since the direction of motion is ignored while measuring distance, it is referred to as a scalar quantity. There is only one possible value for the distance: positive.

Given:

A ball is launched at 5.5 m/s at 76 degrees above the horizontal, It starts and lands at the same distance from the ground,

Calculate the maximum height as shown below,

Maximum height = [tex]v^2sin^2a / 2g[/tex]

Maximum height = 5.5² × sin²76° / 2 × 9.8

Maximum height = 30.25 × 0.97² / 19.6

Maximum height = 30.25 × 0.9409 / 19.6

Maximum height = 28.46 / 19.6

Maximum height = 1.45 m

Thus, the maximum height is 1.45 meters.

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Answer:

B is directed from N to S     (upwards at the open end)

Let the magnet be oriented with the open end at the north

F = q * v X B

A positive charge would be deflected towards the East using v X B

This is the direction of the "conventional" current which is B to A

Actual charges flow from A to B but the sign of the charge is -q

The importance of a studying anthropology to teenagers is that help them to know their roles in the society as well as teach them acceptable social behaviour.

Anthropology is the scientific study of human behaviour, culture and language, both in past and present human societies.

A study of anthropology helps to educate teenagers and help them see their roles in the society as well as them acceptable social behaviour.

Area of importance of anthropology include:

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Answer:

The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. Sound waves that are closer together have a higher frequency, and sound waves that are farther apart have a lower frequency.

Explanation:

hope it helps you