4 Which statements apply to compressional waves? Choose more than one answer. Similar to ocean waves Cause molecules to vibrate Travel through outer space Travel through air, liquid, or solid Move in the same direction as energy flow Move at right angles to the direction of energy flow​

Answer:

1st box: increase

supporting evidence: As the girl swings downward she will gain more height due to the increasing force pushing her

2nd box: increase

supporting evidence: the magnetic force of the earth will increase the kinetic energy of the girl when she goes downward slightly as she swings forward

3rd box :increase

supporting evidence:As the girl swings downward she will gain more speed due to the gravitational pull

Explanation:

Answer:

m₁ = 5.507 x 10⁻³ kg = 5.507 g

Explanation:

The heat released by the steam must be absorbed by the melting wax, according to the law of conservation of energy:

Heat Released by Steam = Heat Absorbed by Wax

Latent Heat of Fusion of Steam = Heat Absorbed by Wax + Latent Heat of Fusion of Wax

m₁H₁ = m₂CΔT₂ + m₂H₂

where,

m₁ = mass of water = ?

H₁ = Latent Heat of Fusion of Water = 2260 KJ/kg = 2.26 x 10⁶ J/kg

m₂ = mass of wax = 50 g = 0.05 kg

C = specific heat capacity of wax = (0.7 cal/g°C)(1000 g/1 kg)(4.184 J/1 Cal)

C = 2928.8 J/kg.°C

ΔT₂ = Change in Temperature of Wax = 55°C - 20°C = 35°C

H₂ = Latent Heat of Fusion of Wax = (35 cal/g)(1000 g/1 kg)(4.184 J/1 Cal)

H₂ = 146440 J/kg

Therefore,

m₁(2.26 x 10⁶ J/kg) = (0.05 kg)(2928.8 J/kg.°C)(35°C) + (0.05 kg)(146440 J/kg)

m₁ = (5125.4 J + 7322 J)/2.26 x 10⁶ J/kg

m₁ = 5.507 x 10⁻³ kg = 5.507 g

Answer:

Air temperature and air pressure both decreases

Answer: A

Explanation:

Answer:

energy transfer electric to heat

Answer:

c. Identify relationships

Explanation:

One of the most important feature of concept-mapping is to identify relationships between the phenomenon being mapped.

Answer:

its a... i have seen one for every letter lol

Explanation:

Answer:

true

Explanation:

Answer:

Is Falseeee

Explanation:

Hope it helps

The standard in the United States is 120-volt and 60Hz AC electricity.

Answer:

120-volt and 60Hz AC electricity.

Explanation:

Answer:

Its most likely answer number 2

Answer:

Females like technology and science, but they are not confident in their mathematics abilities.

and

Females are more likely to pursue STEM education in societies where females have STEM jobs.

Im doing this assignment right now

Answer:

Since these two forces are of equal magnitude and in opposite directions, they balance each other. The book is said to be at equilibrium. There is no unbalanced force acting upon the book and thus the book maintains its state of motion. When all the forces acting upon an object balance each other, the object will be at equilibrium; it will not accelerate.

Explanation:

Answer:

U.S. Federal Government Law addresses government interactions on a national scale, and is largely composed of administrative law and constitutional law. ... State law also establishes and regulates local government for cities, towns, counties, and other communities.In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory

Explanation:

Explanation:

p=5kw=5000w t=? p=w/t, t=w/p

w=25000j t=25000j/5000w

=5s

Answer:

0.88 seconds

1.33 seconds

on edge (when four washers are attached)

Explanation:

Answer:

0.88 seconds

1.33 seconds

Explanation:

Answer:

786.2m/s²

Explanation:

Given parameters:

Force  = 114N

Mass  = 0.145kg

Unknown:

Acceleration of the baseball  = ?

Solution:

According to newton's second law of motion, the product of mass and acceleration is the net force on the body;

   Force  = mass x acceleration

Insert the parameters and find the acceleration;

    114  = 0.145 x acceleration

   Acceleration  = [tex]\frac{114}{0.145}[/tex] = 786.2m/s²

Answer:

What are the opinions?

Explanation:

We need to see a question and opinion

Answer:

they provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.

Explanation:

they provide six main functions.

Answer:

B. -38.2 m/s

Explanation:

Given parameters:

Time of fall  = 4s

Unknown:

Final velocity of the rock  = ?

Solution:

To solve this problem, we use the expression below;

       V = U + gt

V is the final velocity

U is the initial velocity

g is the acceleration due to gravity  = 9.8m/s²

t is the time taken

Now, insert the parameters and solve;

   V  = 0 + (9.8 x 4) = 39.2m/s

Answer:

Explanation:

Scientific modelling is a scientific activity, the aim of which is to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate by referencing it to existing and usually commonly accepted knowledge.

Answer:

Farm = 98.1 [N]

Explanation:

To solve this problem we must draw the respective free body diagram, with the forces acting on the monkey. An analysis of the sums on the y-axis must be performed, in this axis the weight is acting down and the forces of both arms pulling up.

Weight is defined as the product of mass by gravitational acceleration.

W = m*g

where:

m = mass = 20 [kg]

g = gravity acceleration = 9.81 [m/s²]

W = 196.2 [N] (units of Newtons)

As this force points down, the force of both arms must go up, therefore each arm exerts a force of:

Farm = 196.2 / 2

Farm = 98.1 [N]

Answer:

10 m

Explanation:

200 g convert to kg = 0.2 kg

v = 50 m/s

F= ma

= 0.2(50)

= 10

Answer:

Option (B) is correct.

Explanation:

Given that the molecules of hydrogen gas ([tex]H_2[/tex]) react with molecules of oxygen gas ([tex]O_2[/tex]) in a sealed reaction chamber to produce water ([tex]H_2O[/tex]).

The governing equation for the reaction is

[tex]2H_2 +O_2 \rightarrow 2H_2O[/tex]

From the given, the only fact that can be observed that 2 moles of [tex]H_2[/tex] and 1 mole of [tex]O_2[/tex] reacts to produce 2 moles of [tex]H_2O[/tex].

As the mass of 1 mole of [tex]H_2 = 2[/tex] grams ... (i)

The mass of 1 mole of [tex]O_2 = 32[/tex] grams ...(ii)

The mass of 1 mole of [tex]H_2O = 18[/tex] grams (iii)

Now, the mass of the reactant = Mass of 2 moles of [tex]H_2[/tex] + mass 1 mole of  [tex]O_2[/tex]

[tex]= 2 \times 2 + 32[/tex]  [ using equations (i) and (ii)]

[tex]=4+32 = 36[/tex] grams.

Mass of the product = Mass of 2 moles of [tex]H_2O[/tex]

[tex]=2\times 18[/tex] [ using equations (iii)]

=36 grams

As the mass of reactants = mass of the product.

So, mass is conserved.

Hence, option (B) is correct.

There's some missing context here, but I would guess you're talking about a box or something with some mass m being pushed over a flat surface. Since it's moving with constant velocity, there is no acceleration and so the box is in equilibrium. In particular, the horizontal forces cancel each other. If f is the magnitude of the friction force, then

17 N + (-f ) = 0

f = 17 N

and this force points opposite the direction of motion.

Answer:

Because of the perpindicularity of the bisectors reacting with the photosynthesis of the lines.

Explanation:

Answer:

it`s quite simple

Explanation

he can use the chao esmeralds and the chaos esmeralds holds a lot of energy what makes he stronger and more quick

Answer:

D. is the answer

Explanation:

Answer:

D

Explanation:

Answer:

225 m//s

Explanation:

It ran 5m/s so 5x45=225

Answer:

225 meters

Explanation:

If it is running 5 meters per seconds, and it ran 45 seconds, you would need to multiple the seconds it ran by the speed per second: 5 • 45

5 • 45 = 225

2000joules

Explanation:

work done=force×meters

Answer:

because our some of the energy goes from our eyes

explanation;

There are several reasons why it's important to close our eyes while we sleep. Closed eyelids block light, which stimulates the brain to wakefulness. Closing our eyes also protects and lubricates the eyes while we sleep

Answer:

Newton's third law, if i'm not mistaken.

Explanation:

Any action that occurs will have a opposite and equal action. The greater the force u apply to the wall, the greater the force the wall exerts back at you, hence why ur hands become red if u try pushing extremely hard on the wall.

Answer:

The work done is 0.

Explanation:

The reason no work is done is because the equation W = Fs.

W = work

F= force

s= displacement

In this scenario F = 50 and s= 0

Therefore.

W = 50(0)

W = 0

Answer:

The system software is a collection of programs designed to operate, control, and extend the processing capabilities of the computer itself. System software serves, the interface between the hardware and the end users. Some examples of system software are Operating System, Compilers, Interpreter, Assemblers.

Explanation:

A computer software is a collection of computer programs that provides instructions for a computer on what to do and how to do it. There are two types of software:

1. System Software       2. Application software

1. System software controls the various operations performed by the computer hardware. It helps the user operate the computer system.

2. An application software is used to perform operations for a specific task.

Answer:

Air steel water

Explanation: