A 2.5 g latex balloon is filled with 2.4 g of helium. When filled, the balloon is a 30-cm-diameter sphere. When released, the balloon accelerates upward until it reaches a terminal speed. What is this speed

Answer:

I believe you are talking about Emile Durkheim

Explanation: Fun Fact:

He is most well known as the author of On the Division of Social Labor The Rules of Sociological Method, , and The Elementary Forms of Religious Life

Emotional health: expressing feelings is the phrases that belong together. The best answer from the choices provided willl be A.

The condition of complete physical, mental, and the absence of sickness and disability is called good health.

Which of the following phrases belong together?

A.

emotional health: expressing feelings

B.

physical well-being: regard for others

C.

Social health: obtaining enough sleep  

D

Mental health: living in harmony with the environment

The concepts "emotional wellness" and "expressing feelings" go hand in hand. The best response from the available options is going to be A.

Hence, the best answer from the choices provided willl be A.

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The total energy is transferred to the liquid is = 217809.9 J

It is given in the question that—

weight of the liquid= 0.3kg

specific heat capacity=22001/kg C

temperature changes between 20°C to 53°C

we can easily solve this problem by using the formula of the calorimetry principle.

The formula is —

Q= m×s×t [Q=total energy is transferred, m= mass of the substance, s= specific heat, t= final temperature - initial temperature]

by putting the value on what is given in this question —

Q= 0.3×22001×(53-20)

= 217809.9 J

So energy transferred to the liquid is=217809.9 J

Answer:

to have courage and show the strength of your character. ... A person with true grit has passion and perseverance. Goals are set and followed through.

Explanation:

for example: i had the passion and the courage to finish my school work and chores for i can go out with my friends and to get out of the house for a bit and have fun so i had the courage to finish chores from the house and do some schoolwork for i can finish ad hang out with some friends. so i had the strength to finish everything because i didn't want to be doing school work and chores any more so i had the passion to finish up quickly  

Electricity can be applied to a wire to produce a magnetic field.

Magnetic field can be defined as the area around a magnet in which the effect of magnetism is felt.

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Answer:

0.23 m/s².

Explanation:

v=u+ at.

.....

The magnitude of the electric force between the two charges is 8.99 x 10^9 N, Where one point charge has a magnitude of 5.4 x 10-7 C and  second charge that is 0.25 m away has a magnitude of 1.1 x 10-17 C.

The electric force between two point charges can be calculated using Coulomb's Law, which states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. In this case, the magnitude of the electric force can be calculated as:
Electric force = (k * |q1| * |q2|) / r^2
Where k is the electrostatic constant (8.99 x 10^9 N m^2/C^2), |q1| and |q2| are the magnitudes of the charges (5.4 x 10^-7 C and 1.1 x 10^-17 C, respectively), and r is the distance between the charges (0.25 m).
Plugging in the values, we can calculate the magnitude of the electric force as 8.99 x 10^9 N.

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Answer:

Explanation:

one and three seem right soo  answer C  

The height of the 5kg mass object with respect to the ground is 2.04m.

Potential energy refers to the energy possessed by an object because of its position (in a gravitational or electric field), or its condition (as a stretched or compressed spring, as a chemical reactant, or by having rest mass).

Potential energy = mass × height × acceleration due to gravity

According to this question, a 5kg mass has 100 J of potential energy with respect to the ground. The height can be calculated as follows:

100J = 5kg × 9.81 × h

100 = 49.05h

h = 2.04m

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The third piece of the bomb flies off horizontally in the direction opposite to the vector sum of the velocities of the other two pieces.

To determine the direction of motion of the third piece, we need to calculate the vector sum of the velocities of the first two pieces. Let's break down the given velocities into their x and y components.

Piece 1: Velocity = 20 m/s at 60 degrees

Piece 2: Velocity = 12 m/s at 120 degrees

Using trigonometry, we can find the x and y components of the velocities:

Piece 1:

\(V1x = 20 m/s * cos(60) = 10 m/sV1y = 20 m/s * sin(60) = 17.32 m/s\)

Piece 2:

\(V2x = 12 m/s * cos(120) = -6 m/sV2y = 12 m/s * sin(120) = 10.39 m/s\)

Now, we can find the vector sum of the x and y components:

\(Vx = V1x + V2x = 10 m/s + (-6 m/s) = 4 m/sVy = V1y + V2y = 17.32 m/s + 10.39 m/s = 27.71 m/s\)

Finally, we can find the magnitude and direction of the resulting velocity:

\(V = sqrt(Vx^2 + Vy^2) = sqrt((4 m/s)^2 + (27.71 m/s)^2) ≈ 27.99 m/s\)

The direction of motion of the third piece is opposite to this resulting velocity, so it will be approximately 180 degrees.

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Answer: W = 614 kg × 9.81 m/s² × 9.3 m

Explanation: work W is done against gravity. W = mgh

Time is needed to calculate work

At  a constant speed, a crane lifts a 614-kg roof 9.3 m above the ground, It takes 48.4 seconds to do it, so the work done by the crane is 5,704.2 J, as the work done is the product of the force and the distance.

The work done here is the product of the force, distance, and angle, which is the cosθ, and the force given is the weight of the roof, which is 614 kg; the distance is 9.3 m; and the angle is not given, so the calculation is given below.

work = force x distance x cosθ

work = 614 kg x 9.3 m x  cos0,

work = 614 x 9.3 = 5,704.2 J

Hence, at a constant speed, a crane lifts a 614-kg roof 9.3 m above the ground, It takes 48.4 seconds to do it, so the work done by the crane is 5,704.2 J, as the work done is the product of the force and the distance.

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water is not found in the periodic table.

water has a lot of empty space.

I think that's it I know those to are true.

The statements that are true about water are as followings,

Water does not appear on the periodic table of elements.

Water molecules contain a lot of empty space.

Hydrogen and oxygen have different properties when separated.

Therefore the correct options are options B, C, and E.

A chemical compound is a combination of two or more either similar or dissimilar chemical elements.

For example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

The periodic table contains only elements therefore water cannot be found on the periodic table , oxygen and hydrogen would have different properties when separated.

Thus , the correct options are B, C, and E.

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Answer:

45

Explanation:

Answer:

A chemical symbol is a one- or two-letter designation of an element. Compounds are combinations of two or more elements. A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements. Many elements have symbols that derive from the Latin name for the element.

Answer:

16 to 25 degrees f

Explanation:

After three half-lives, 1/8 (or 0.125) of the parent isotope remains. Thus, 0.125 times the parent atoms. The daughter isotope would be equivalent to the remaining parent isotope, 0.125 times the original number of parent atoms.

After three half-lives, the parent isotope has exponentially decayed, forming the daughter isotope. Each half-life reduces the parent isotope by half and increases the daughter isotope. Three half-lives have passed, reducing the parent isotope to 1/8 of its initial level. The rock sample would have 1/8 of the parent isotope.

The daughter isotope would have accumulated during decay. After three half-lives, the daughter isotope would have reached 3/8 of the parent isotope as each half-life creates one-half of it. After three half-lives, the rock sample would have 1/8 of the parent isotope and 3/8 of the daughter.

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Answer:

48 m

Explanation:

Two trains traveling towards one another on a straight track are 300m apart when the engineers on both trains become aware of the impending Collision and hit their brakes. The eastbound train, initially moving at 97.0 km/h Slows down at 3.50ms^2. The westbound train, initially moving at 127 km/h slows down at 4.20 m/s^2.

The eastbound train

First convert km/h to m/s

(97 × 1000)/3600

97000/3600

26.944444 m/s

As the train is decelerating, final velocity V = 0 and acceleration a will be negative. Using third equation of motion

V^2 = U^2 - 2as

O = 26.944^2 - 2 × 3.5 S

726 = 7S

S = 726/7

S1 = 103.7 m

The westbound train

Convert km/h to m/s

(127×1000)/3600

127000/3600

35.2778 m/s

Using third equation of motion

V^2 = U^2 - 2as

0 = 35.2778^2 - 2 × 4.2 × S

1244.52 = 8.4S

S = 1244.52/8.4

S2 = 148.2 m

S1 + S2 = 103.7 + 148.2 = 251.86

The distance between them once they stop will be

300 - 251.86 = 48.14 m

Therefore, the distance between them once they stop is 48 metres approximately.

The resultant velocity of the parachute is 3.4 m/s.

The term resultant velocity refers to the effective velocity  with which the parachute moves. We know that velocity is a vector quantity. Recall that a vector is known to have both magnitude and direction.

Given that the magnitude of the resultant vector can only be obtained geometrically we have;

Vertical component =   3.0 m/s

Horizontal component = 1.6 m/s

Resultant velocity = √(3)^2 + (1.6)^2

= 3.4 m/s

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Answer:

The answer is B.

Explanation:

A Block has a density of 0.97 g/cm 3. That is why 97 percent of the ice will sink in below the water.

Answer:

True

True

True

False

False

True

True

Answer:

Yes, a mixture can be made up of just elements and no compounds. The elements never experiance a chemical interaction and stay only in physical contact with each other.

BRAILIEST PLS I NEED LEVEL UP!

Answer:

hey mate your answer is here

The fundamental frequency of pipe in helium is 879Hz while in air is 300Hz indicating the increase in frequency of helium.

Given the fundamental frequency of pipe in air (fa) = 300Hz

The molar mass of Helium = 4

Let the specific heat ration = α

The length of the pipe = L

We know that for the open ends of pipe frequency = v/2L while for the closed ends the frequency is v/4L where v is the velocity of sound wave.

We can see that f is directly proportional to v

We also know that the velocity of wave is calculated as: v = √αRT/M such that v is directly proportional to √α/M

Let the frequency of air = fa and frequency of helium = fh such that:

fh/fa = √αh/αa x Ma/Mh = √1.68 x 28.8 / 1.4 x 4

fh/fa = 2.93

fh = 300 x 2.93 = 879Hz

Hence the frequency of helium = 879Hz

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complete question: Now consider a pipe that is stopped (i.e., closed at one end) but still has a fundamental frequency of 285 in air. How does your answer to Part A, , change? a. fHe increases. b. fHe decreases. c. fHe stays the same.

Answer:

4.9L hope this helped!

A batter is struck with a baseball that weighs 0.15 kg at a speed exceeding 32.0 m/s. When a 0.94 kilogram bat. After a collision, the baseball's final speed was 24 m/s.

The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and indeed the basic unit pf distance are combined to form the Special name of speed.

Speed indicates how quickly thing or an individual are moving. If you know how far something has traveled and how long it took to get there, you can calculate its average speed. Speed is calculated as follows: speed = distance * time.

Mass of baseball, m=0.15kg,

Mass of bat, M=1.4kg,

Initial speed of baseball, u=-32 m/s,

Initial speed of bat, U=41 m/s

Final speed of bat, V=35 m/s,

Linear momentum, mu+MU = mv+MV

(0.15" " kg×-32" " m/s)+(1.4" " kg×41" " m/s)

=(0.15" " kg ×v)+(1.4" " kg×35" " m/s)

-4.8+57.4 = 0.15v+49

0.15v = 3.6

v=(3.6)/(0.15)

v=24m/s

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Answer:

Explanation:

The addition of a solute to solvent increases the boiling point of the solution . Higher the concentration of the solute , higher will be the boiling point . But if we measure the boiling point of distilled water , since there is no solute in it , there will not be any change in its boiling point .

So following statements are not appropriate  .

A) The addition of sucrose to pure water will lower the boiling point .

Answer:

B the more sucrose added, the greater the concentration o the solution

Explanation: correct

Answer:

Mantle will be the required answer

From the calculations, the volume of the gas is obtained as 9.3 L

The gas laws show the relationship between the volume, pressure, temperature and the number of moles of a gas.

Given that;

V1 = 10 L

T1 =  0 ºC + 273 = 273 K

V2 = ?

T2 =  -20 ºC + 273 = 253 K

It then follows that;

V1/T1 = V2/T2

V1T2 = V2T1

V2 = V1T2/T1

V2 = 10 L * 253 K/273 K

V2 = 9.3 L

If the gas were to be hydrogen, the volume of the gas will decrease even further,

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Answer:

I dont know what you mena by road and the people