Why does ice change into water on heating ?
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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:

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:

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:

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:

Answer:

10 m

Explanation:

200 g convert to kg = 0.2 kg

v = 50 m/s

F= ma

= 0.2(50)

= 10

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:

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:

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:

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:

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:

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:

What are the opinions?

Explanation:

We need to see a question and opinion

Answer:

energy transfer electric to heat

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.

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

Answ40x-50 =2334

Explanation:

idk

2000joules

Explanation:

work done=force×meters

Answer:

D. is the answer

Explanation:

Answer:

D

Explanation:

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.

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: Is that a question?

Explanation:

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:

Static Friction

It is the friction that exists between a stationary object and the surface on which it's resting.

Sliding friction

It is the resistance created by two objects sliding against each other.

Rolling friction:-

It is the force resisting the motion when a body rolls on a surface.

Answer:

0.88 seconds

1.33 seconds

on edge (when four washers are attached)

Explanation:

Answer:

0.88 seconds

1.33 seconds

Explanation:

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

4

Explanation:

four rays can also explain the ray diagram if the object is at infinity

Explanation:

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

w=25000j t=25000j/5000w

=5s

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:

because metals a good conductor of electricity.

Explanation:

Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.

Explanation:

Metals are good conductors of electricity and are ducitile i.e. can be drawn into thin wires hence they are used for making wires.

Answer:

Atoms

Explanation:

An atom is the smallest particle of an element that still has the properties of that element

Answer:

[tex] \huge{ \boxed{ \bold{ \sf{Atom}}}}[/tex]

✎ Let's explore about Atoms :

⟶ The smallest particle of an element which takes part in a chemical reaction without its division is called an atom. All the atoms of an element are the same. The atoms of different elements are different. All the atoms of iron in an iron nail are the same. But the atoms of iron are different from the atoms of copper. All the atoms of elements except hydrogen are made up of electron , proton and neutron. A hydrogen atom is made up of only electron and proton. Most of the atoms of elements do not exit independently except the atoms of inert gases like helium , neon , krypton etc.

____________

✑ EXTRA INFO :

STRUCTURE OF THE ATOM :

⟶ According to scientists , an atom is a sphere with a diameter of approximately [tex] \sf{ {10}^{ - 10}} [/tex] m. In the [tex] \sf{ {19}^{th} }[/tex] century , it was found that there are other smaller particles in an atom. These smaller particles are called subatomic or elementary or fundamental particles. The main subatomic particles are electrons , protons and neutrons. Among three subatomic particles of an atom , protons and neutrons are located at the centre of the atom called nucleus. The nucleus shows the positive charge due to the positive charge of protons. It also helps to find atomic weights . Electrons are revolving around the nucleus in their respective orbits or shells. The number of electrons present in an atom determines the size of the atom as it occupies more space as compared to the nucleus. In any atom , the number of negatively charged electrons in the orbits is equal to the number of positively charged protons in the nucleus. So, An atom is electrically neutral.

Hope I helped!

Have a wonderful day ! ツ

~TheAnimeGirl ♡

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