Which element has similar properties to neon

The best explanation of the energy in the circuit is, the energy in the battery was transformed into electrical energy, light energy, and heat energy.

option A is the correct answer

The law of conservation of energy states that the total energy of an isolated system remains constant, that is the total energy of the isolated system is said to be conserved over time.

According to the law of conservation of energy, energy can neither be created nor destroyed but can be converted from one form to another.

For instance, electrical energy can be converted into heat and light energy, mechanical energy can be converted into electrical energy, and vice versa, chemical energy can be converted into light and heat energy.

Thus, when she finds that the battery no longer has a charge, the best explanation of the energy in the circuit would be the energy in the battery was transformed into electrical energy, light energy, and heat energy.

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Answer:

Explanation:

It's A I got this question wrong twice and I got it correct when I clicked A. Hope this helps!

The graph representing average speed ( s ) vs length ( m ) and square of average speed ( s² ) vs length ( m ) is shown in the image attached below.

The value of time period of three trials each for all three length are given. The average value of all the given time periods are found by using  

s = ( s1 + s2 + s3 ) / 3

Then the average time period is squared. In graph 1, the the length of pendulum ( y-axis ) is plotted against average time period ( x-axis ). In graph 2, the the length of pendulum ( y-axis ) is plotted against square of average time period ( x-axis ).

Therefore, the graph representing average speed ( s ) vs length ( m ) and square of average speed ( s² ) vs length ( m ) is shown in the image attached.

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The balloon hits the ground right before the professor gets there.

The balloon picks up speed due to gravity and we can calculate the time taken for it to fall to the ground as follows:

Gravity (g) = 9.81 m/s²

Height or distance (s) = 11 meters

Initial Speed (u) = 0 m/s

using equation of motion

[tex]s = ut + \frac{1}{2}at^{2}[/tex]

where s = height

u = initial speed

a = acceleration due to gravity

t = time taken

then using above values we get

11 = 0 x 2 + 0.5 x (9.8 x t²)

t = 1.4975

So we can see that the balloon takes 1.4975 seconds to fall to the ground, and since the professor takes 2 seconds to get to that place.

The balloon hits the ground right before the professor gets there.

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An 80 kg bicyclist is coasting down a long hill that has a 10° slope. The speed that a cyclist has eventually attained is mathematically given as

v = 26 meters per second. or v = 26 m/s

This is further explained below.

Generally, the equation for balancing the equation of Force is  mathematically given as

F1 = F2 + F3

Therefore

F3 = F1 - F2

Where

sinθ = sin(10) = 0.1736

and

cosθ = cos(10) = 0.9848

F1 = m g sinθ

F1=80 x 9.81  x 0.1736

F1= 136.24 N

F2 = μ m g cosθ

F2= 0.02 x 80 kg x 9.81 m/s2 x 0.9848

F2 = 15.46 N

Hence

F3 = F1 - F2

F3= 136.24 N - 15.46 N

F3= 120.78 N

In conclusion, The equation for is  mathematically given as

v = speed reached by a bicyclist

v= ((2 x F3 / (ρ x CD x A)) 0.5

Therefore

v = ((2 x 120.78 N / (1.2041 kg/m3 x 0.85 x 0.35))1/2

v= 25.97 m/s

v = 26 m/s

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Complete Question

An 80 kg bicyclist is coasting down a long hill that has a 10 ∘ slope. His cross-section area is 0.35 m2, his drag coefficient is 0.85, his bicycle's coefficient of rolling friction is 0.02, and the air temperature is 20∘C.

What speed those he eventually reach?

When the scientists draw conclusions the scientist find out whether the hypothesis was supported.

A hypothesis is a theory put up to explain a phenomenon. A hypothesis cannot be called a scientific hypothesis unless it can be tested using the scientific process.

Once your experiment is complete, you collect your measurements and analyze them to see if they support your hypothesis.

Scientists frequently discover that their hypotheses and predictions were not supported by the results of their experiments. In these circumstances, they will discuss the results of their experiment before reevaluating their initial theories and predictions in light of the fresh information. The scientific method is essentially restarted in this way. Even if they discover that their theory was correct, they could still wish to verify it once more using a different approach.

The correct option is (a).

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Both the Moon's orbital period and its gravitational force on the Earth would be different.

Any two objects with mass are drawn together by the gravitational force. We refer to the gravitational force as attractive because it consistently seeks to draw masses together rather than pushing them apart. In fact, everything in the universe is pulling on everything else, including you.

The rise and fall of ocean tides is a result of the moon's gravitational effect. Their gravitational attraction to self-destructive behavior has been the focus of extensive research. of or pertaining to a strong movement or natural tendency toward something or someone.

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The statement that a teacher sitting in her rolling chair pushes against the wall and moves in the opposite direction exemplifies the third law of motion by Newton.

Newton's third law of motion states that for every action, there is an equal and opposite reaction.

This law describes the nature of a force as the result of a mutual and simultaneous interaction between an object 1 and a second object 2.

According to Newton's third law of motion, whenever two objects A and B interact with each other, they both exert equal but opposite forces upon each other.

Therefore, the statement that a teacher sitting in her rolling chair pushes against the wall and moves in the opposite direction exemplifies the third law of motion by Newton.

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Average speed must the car have for the average speed for the entire 24.0 km trip 67.039 km/hr.

Average speed for entire journey (jogging + drive) = 20 km/hr

total distance traveled = 24 km

total time spent (on jog + drive) = total distance/average speed

total time spent (on jog + drive) = 24/20

total time spent (on jog + drive) = 1.2 hr

Jogging:

Speed = 9.5 km/hr

Distance = 8.0 km

Time spent jogging = Distance/Speed

= 8.0 / 9.5 = 0.842 hr

Driving car :

Speed = ?

Distance = 24 km

time spent driving = total time spent on journey - time spent jogging

time spent driving = 1.2 - 0.842 = 0.358 hr

average speed for driving = distance / time

average speed for driving = 24/0.358

average speed for driving = 67.039 km/hr

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The net force on an object equal to zero When the forces acting on the object are balanced

Option C is correct answer.

Newton's first law states that when the resultant of all forces acting on an object (the net force) is zero, the thing  is in equilibrium. If the thing  is initially at rest, it remains at rest. If it's  initially in motion, it continuously  move with constant velocity.

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Answer:

Explanation:

yes, it will.40

Answer: Hydrothermal vents is your answer.

Explanation:

it's very hot, there is no light, there are bacteria, and there it's mineral-rich.

By using Specific heat capacity, 741.76 x [tex]10^4[/tex]heat energy is needed to raise the temperature.

The amount of heat required to increase the temperature of 1 gram of a substance by 1 degree Celsius (°C) is known as the specific heat capacity.

The importance of specific heat capacity may be summed up as the quantity of energy needed to heat or cool an item of a given mass by a certain amount.

Given:

Mass of vat, mvat = 20kg

Mass of water, mwater = 3kg

ΔT = 90 – 10 = 80℃

Specific heat capacity of iron, Ciron = 450J/kg

Specific heat capacity of water, Cwater = 4186J/kg

To find:

Heat energy required, Q = ?

Formula:

C = Q / (m ΔT)

Calculations:

Q = mCΔT

Q = Qempty + Qwater

Q = (20 x 450 x 80) + (3 x 4186 x 80)

Q = 172.464 x [tex]10^4[/tex]J

Result:

Heat energy required is 172.464 x [tex]10^4[/tex]J

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Answer:

D- moves with constant velocity

Explanation:

As we know that acceleration is tge rate of change in velocity.

Since velocity is constant, the change in velocity is zero (∆v=0)

[tex]{ \tt{acceleration = \frac{ \triangle v}{t} }} \\ \\ { \tt{acceleration = \frac{0}{t} }} \\ \\ { \tt{acceleration = 0}}[/tex]

1. The waterfall is 8.54 m high

2. The velocity with which the swimmer enters the water is 14.836 m/s

s = ut

2.5 = 1.9 × t

Divide both sides by 1.9

t = 2.5 / 1.9

t = 1.32 s

h = ½gt²

h = ½ × 9.8 × 1.32²

h = 8.54 m

The velocity with which the swimmer enters the water can be obtained as follow:

v = u + gt

v = 1.9 + (9.8 × 1.32)

v = 1.9 + 12.936

v = 14.836 m/s

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The correct answer is V_f = 1.81 × 10^14.

D = 2cm = 0.02 m

ΔV = 150 V

V_i = 2.6 × 10^5 m/s

The coulomb force,

F = qE

ma = qE

a = qE/m

Potential difference

ΔV = ED

E = ΔV/D

a = qΔV/mD

Using equation of motion,

V_f^2 = V_i^2 + 2ad

V_f = √V_i^2 + 2ad

V_f = √V_i^2 + 2d ( qΔV/mD)

here q= 1.6  × 10^-19 C

m = 9.11 × 10^-31 kg

for d= 0.1 cm =  0.001 m

V_f = √(2.6 × 10^5)^2 + 2 (0.001)(1.6  × 10^-19 C × 150V/9.11 × 10^-31 × 0.02)

V_f = √(6.76 × 10^10) + 0.002(24× 10^-18 C)/1.822× 10^-32)

V_f = √(6.76 × 10^10) + 48 × 10^-15/1.822× 10^-32

V_f = √(6.76 × 10^10) + 26.3 × 10^17

V_f = √33.06 × 10^27

V_f = 1.81 × 10^14

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projectile's vertical speed v yv y v, start , y,  drops prior to reaching its maximum height since its acceleration is in the opposite direction. Since the object's height is rising, the initial direction of the velocity is upward

.

At the projectile's highest point, vertical velocity zeroes out. After reaching the highest point, the vertical speed increases due of the same-direction acceleration. As the object's height lowers, the vertical velocity has a downward direction.

In projectile The beginning vertical velocity determines the maximum height. Increasing the launch angle raises the maximum height because steeper launch angles have a larger vertical velocity component.

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by using all the four type of parenting here is the descriptive answer which include 4 types of parenting by parents.

When a child queries the justification for a regulation, authoritarian parents are infamous for responding, "Because I said so," They are more concerned with obeying than they are with negotiating. Parental authority figures may substitute punishment for instruction. So instead of instructing a child on how to make better decisions

Parents who are authoritative put time and effort into avoiding behavioral issues before they arise. Additionally, they employ positive discipline techniques like reward and praise systems to reinforce good conduct.

Parents that are liberal with their children typically act more like friends than parents. They frequently encourage their kids to talk to them about their issues, but they typically don't make an attempt to discourage poor decisions or misbehavior because they are either uninvolved parents who don't understand how kids develop, or they are unaware of it.

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The element used is of bronze.

Now before we find out how we got the answer as bronze, firstly let us understand about the device we are talking about. That is, spring.

What exactly is a spring?

A spring is defined as a device that changes its shape in response to an external force, returning to its original shape when the force is removed. If we apply force or pressure in this device, it will change its shape but the moment we stop applying force, it will come back to its original state.

This means that this device is made of something flexible. So, the material it is made up of should also be flexible in nature.

How to find out flexibility of spring?

Flexibility of spring can be found as q = f Q, where f is the spring flexibility.

Here, in this question, we are given the mass of element in air and water. This shows a slight comparison between the mass of that particular element in air and water and thus, we get to know it is trying to draw our attention towards density.

Here, we have mass in air and water, thus, we can determine the density.

From these numbers, we can know that the density given is of bronze.

Hence, the element used is Bronze.

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With the use of formula, he car's centripetal acceleration is 0.43 m/s²

Angular velocity is the angle turned by a body per time taken. It is measured in radian per second. That is, rad/s

Given that a race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 75 km/h. What is the car's centripetal acceleration in m/s²

Centripetal Acceleration a = v² / r

Where

Substitute the two parameters into the equation

a = 20.83² / 1000

a = 434.03 / 1000

a = 0.43 m/s²

Therefore, the car's centripetal acceleration is 0.43 m/s²

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The Magnitude of the resultant velocity is given by: Vr = squareroot of the addition of (2002 + 502) = 210m/s at 14.04degrees.

The velocity would be roughly 206.16 m/s at a heading of approximately if the airplane were simply following the wind and not attempting to course correct. A compass reading of 14.04 degrees (0 deg being North, 90 deg being East).

Y axis is north, and X axis is east. The line m=rise (y2-y1)/run (x2-x1) = 200/50 has a slope of 4/1. Since a2 + b2 = c2 on the triangle, 40,000 + 2,500 = 42,500. The hypotenuse of our right triangle, which represents the total distance traveled in one second, is equal to 206.16, which is the sq root of that number.

Now, we can determine the heading using TAN = Opposite / Adjacent (the angle x of the line on our graph). TAN (x) = 50/200 = 0.25 so x = 14.04 degrees, approximately.

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It takes the cyclist 4 seconds to slow down.

Considering the acceleration is constant, we know that,

v² - u² = 2 a s

a = Δv / t

Δv  = v - u

where,

v = Final velocity

u = Initial velocity

s = Displacement

Δv = Rate of change of velocity

Given that,

u = 15 m /s

v = 3 m / s

s = 36 m

3² - 15² = 2 * a * 36

-216 / 72 = a

a = - 3 m / s²

a = ( v - u ) / t

- 3 = ( 3 - 15 ) / t

t = 4 sec

Rate of change of velocity is the velocity difference between initial and final velocity. It is denoted as Δv.

Therefore, it takes the cyclist 4 seconds to slow down.

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The ball rolling down the hill has an acceleration of 3.5 [tex]m/s^2[/tex].

Acceleration refers to the rate at which an object's velocity with regard to time changes. An object's velocity might alter depending on whether it moves faster or slower or in a different direction.

Given:

Initial velocity, u = 3m/s

Final velocity, v = 34.5m/s

Time, t = 9 seconds

To find:

Acceleration, a = ?

Formula:

v = u + at

Calculations:

a = (v – u) / t

a = (34.5 – 3) / 9

a = 31.5 / 9

a = 3.5 [tex]m/s^2[/tex]

Result:

The acceleration of the rolling ball is 3.5 [tex]m/s^2[/tex].

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The mass of an atom is its atomic mass. Although the kilogram is the standard international measurement of mass, the unified atomic mass unit, or dalton, is frequently used to express atomic mass. One Da is equal to one-twelfth of a free carbon-12 atom's mass when it is at rest in the ground state.

Which Noble Gas has the lowest average atomic mass?

Ne; Xe; Ar; He

"He - 4.0026Da"

It is written as a multiple of 1.992646547 1023 gram, or one-twelfth of the mass of the carbon-12 atom, which is given an atomic mass of 12 units. In this scale, 1.660539040 1024 gram is equal to 1 atomic mass unit (amu). In honor of English chemist John Dalton, the atomic mass unit is often known as the dalton (Da).

The total mass of the protons, neutrons, and electrons that make up an atom is a little bit less than the observable atomic mass. According to an equation where the energy (E) released equals the product of the mass (m) consumed and the square of the velocity of light in vacuum (c), the difference, known as the mass defect, is accounted for during the combination of these particles by conversion into binding energy; thus, E = mc2.

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During the nuclear change we can expect to see different chemical symbols before and after the change

Chemical and nuclear reactions are quite different from one another. Atoms can share electrons with other atoms or participate in an electron transfer to increase their stability in chemical reactions. In nuclear reactions, the atom's nucleus stabilizes itself by going through some sort of alteration. Compared to the energies involved in chemical reactions, the energies produced in nuclear reactions are many orders of magnitude higher. Environmental factors like temperature or pressure do not significantly affect nuclear reactions like they do with chemical ones.

Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei

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The thickness of the barrier that will stop a car travelling at 76.86 km/h is 0.76 m.

The thickness of the barriers can be calculated using a kinematic equation as shown below;

v² = u² + 2ad

where;

The given final velocity of the car;

v = 76.86 km/h = 21.35 m/s

Thickness of the barrier that will stop a car travelling at 76.86 km/h is calculated as follows;

d = v²/2a

d = (21.35²) / (2 x 300)

d = 0.76 m

Thus, the thickness of the barrier that will stop a car travelling at 76.86 km/h is 0.76 m.

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Answer:

F = 450N

Explanation:

clockwise stock = anticlockwise stock

F(2m) = 600N(1.5m)

2mF/2m = 900Nm/2m

F = 450N

Therefore the magnitude of the effort from the given diagram is 450N.