Water from a fire hose is directed horizontally against a wall at a rate of 44.1 kg/s and a speed of 46.5 m/s. Calculate the magnitude of the force exerted on the wall, assuming the water's horizontal momentum is reduced to zero.

The sentence describes the energy changes that occur when a chemical reaction happens is energy is absorbed to break bonds in the reactants and to form bonds in the products.

Chemical reactions are the result of the transformation that occurs in substances, where atoms rearrange themselves, modifying their initial state. Thus, chemical compounds undergo changes generating new molecules.

In this case, the chemical reaction is energy is absorbed to break bonds in the reactants and to form bonds in the products.

See more about chemical reaction  at brainly.com/question/22817140

#SPJ1

Energy is absorbed to break bonds in the reactants and to form bonds, sentence describes the energy changes that occur when a chemical reaction happens Thus, the correct option is D.

A reactant is a substance that enters a chemical process and is changed as a result.

The reacting compounds have distinct elemental compositions. Varied sorts of elements with different electronegativities make up this elemental composition. When two chemicals react, there must be a tendency for a stable product to form. This is accomplished by severing the ties. Higher electronegative species break the bonds because they have a lot of energy to react with species that have less energy. As a result, the bond breaks and new bonds develop. Everyone wants to save energy, and this result has more energy than the reactant.

For more information regarding reactant, visit:

https://brainly.com/question/26283409

#SPJ1

Answer:

mass

Explanation:

Density is the measure of how much mass of a substance is squeezed into a given volume of that substance. It is the mass per unit volume, and substances with lesser density will float in materials with denser density. Buildings are generally more obviously denser that air, if not we'll see then float upwards into the atmosphere, but that is not the case. Different liquids too can separate and form layers on one another due to their differences in volume.

The angle between the ladder and the ground is changing at rate of 2.4ft/s.

A right tringle is formed when ladder is against the wall,

x²+y² = 13²

dy/dt = -4ft/s

y = 5 feet

2[dx/dt] + 2[dy/dt] = 0

y = 10, x= √69 z = 13ft

2×√69[dx/dt] + 2×5×(-4) = 0

16.6[dx/dt] = 40

dx/dt = 40/16.6

dx/dt = 2.4 ft/s

The angle between the ladder and the ground is changing at rate of 2.4ft/s.

To know more about calculus visit

brainly.com/question/22810844

#SPJ4

Peak voltage and total current path resistance both serve as limits on the enormous peak current that flows static charge. However, because there is little charge stored, the overall power is poor.

learn more about static current from here: https://brainly.com/question/821085#SPJ4

The voltage as a function of time for the power source oscillating at the given frequency is determined as V = 169.7sin(120πt).

The peak voltage of the source is calculated as follows;

Vrms = 0.7071V₀

120 = 0.7071V₀

V₀ = 120/0.7071

V₀ = 169.7 V

ω = 2πf

where;

f is frequency = 60 Hz

ω = 2π x 60

ω = 120π rad/s

V = V₀sin(ωt)

V = 169.7sin(120πt)

Learn more about peak voltage here: https://brainly.com/question/6249123

The voltage equation is a function of a time is V = 169.7sin(120πt) if the 1. 5-kω resistor and 27. 7-mh inductors are connected in series to a vrms = 120 v ac power source oscillating at a frequency of f = 60 Hz.

Electromagnetic induction causes the induced voltage. Electromagnetic induction is the process of creating emf (induced voltage) by exposing a conductor to a magnetic field.

We have:

\(\rm V{rms} = 120\)

We know:

\(\rm V_{rms} = 0.7071V_o\)

\(\rm 120 = 0.7071V_o\)

\(\rm V_o = 169.70\) Volts

Expression for the angular frequency is given by:

ω = 2πf

Where f is frequency

ω = 2π x 60  

ω = 120π rad/s

Voltage equation as a function of time is given by:

V = V₀sin(ωt)

V = 169.7sin(120πt)

Thus, the voltage equation is a function of a time is V = 169.7sin(120πt) if the 1. 5-kω resistor and 27. 7-mh inductors are connected in series to a vrms = 120 v ac power source oscillating at a frequency of f = 60 Hz.

Learn more about the induced voltage here:

brainly.com/question/19482771

#SPJ4

Answer:

Water has an especially high heat capacity at 4.18 J/g*C, which means it takes more heat to warm a gram of water. ... Air that is in contact with the ocean will be much cooler from energy transfer between water and air, while air that sits above land will heat up much more quickly

A BTU is the amount of energy required to raise the temperature of one pound of water by one degree Celsius: False

The energy needed to raise the temperature of one pound of water by one degree Fahrenheit is known as a BTU.

British thermal units are used to assess the capacity of the majority of air conditioners (BTU). One pound (0.45 kilos) of water needs one BTU of heat to increase its temperature by one degree Fahrenheit (0.56 degrees Celsius). One tonne is 12,000 BTU in terms of heating and cooling.

Heat is measured in British thermal units. One BTU is about 1055 joules (J), the joule being the current SI unit for heat energy.  This represents the fact that the temperature change of a mass of water caused by the injection of a particular quantity of heat (measured in energy units, often joules) varies somewhat depending upon the water's beginning temperature.

To know more about energy visit this:

https://brainly.com/question/1932868

#SPJ4

The strength of the magnetic force is inversely proportional to the square of distance between the magnets. Thus, as the distance increases, force between the magnets decreases.

Magnetic force, is the force generated by magnetic flux lines arised from a magnetic field.  A magnet have a south pole and north pole. There will be repulsive force between two like poles and attractive force between two unlike pole.

The force between two objects is always in inverse proportion with the distance and this is well explained by Coulomb's law of forces.

Thus, F ∝ 1/r² where, r is the distance.

Therefore, as the distance between two magnets increases the magnetic force between them decreases.

To find more on magnetic force, refer here:

https://brainly.com/question/3160109

#SPJ1

If two identical sound waves arriving at the same point are in phase, the resulting wave, compared to the original waves, will have (C) a larger amplitude.

When two sound waves are in phase, their peaks and troughs align perfectly. This alignment causes constructive interference, which results in the combined wave having a larger amplitude.

The amplitude is a measure of the energy in the wave, so a larger amplitude means a louder sound or greater intensity.

The speed (A) and frequency (B) of the combined wave remain unchanged because these properties depend on the medium through which the sound waves travel and not on the interaction between the waves.

The period (D) of the combined wave also remains unchanged because it is the inverse of the frequency.

In summary, when two identical sound waves are in phase and arrive at the same point, they create a new wave with a larger amplitude due to constructive interference, while other properties like speed, frequency, and period remain the same.

To know more about sound waves, refer here:

https://brainly.com/question/11797560#

#SPJ11

The correct option is (C) a larger amplitude.

When two identical sound waves are in phase, their peaks and troughs align, resulting in constructive interference. This means that the amplitude of the resulting wave will be the sum of the amplitudes of the original waves. Therefore, the resulting wave will have a larger amplitude compared to the original waves.

The amplitude of a sound wave is related to the loudness of the sound. So, when two identical sound waves arrive at the same point in phase, their amplitudes add up, resulting in a wave with a larger amplitude and thus a louder sound.

Neither the speed nor the frequency nor the period of the wave changes when the waves are in phase, as these properties are determined by the medium through which the wave is traveling and the source of the wave, and not by the interference of waves.

Learn more about interference here:

https://brainly.com/question/16098226

#SPJ11

The length of brass rod after expansion is 2.0036m.

By definition, the length increase is:

Delta L = Alpha L_0 Delta TΔL=αL

naΔT

where alpha = 18 times 10^{-6}K^{-1}α=18×10−6

K-1

is expansion, L0 = 2 ml

na=2m is the initial length and Delta T = 100KΔT=100K is the temperature change. How to get:

Delta L = 18 times 10^{-6}cdot 2cdot 100 = 3.6 times 10^{-3} = 0.0036mΔL=18×10

−6

⋅2⋅100=3.6×10

−3

= 0.0036 meters

So the final length is:

L = L0 + delta L = 2 m + 0.0036 m = 2.0036 ml = l

0

na

+ΔL=2m+0.0036m=2.0036m

Linear expansion is the rate of increase in length of a solid sample per unit rise in temperature. If the length of the sample increases from l1 to l2 as the temperature increases by θ°, the expansion (α) is given by

l2 = l1(1 + αθ). This relationship assumes that α is independent of temperature.

For more information on expansivity kindly visit to

https://brainly.com/question/20806270

#SPJ1

Answer:

In this case the net force is zero.

According to Newton's third law of motion: For every action, there is an equal and opposite reaction. In this case the net force is zero.

Explanation:

Hope this helps!! :)

At the temperature -40°C (-40°F), can you throw water in the air and it freezes.

This is known as the "flash freezing" point. It is the temperature at which water droplets instantly freeze when they come into contact with cold air.

This will occur in some actual temperature also. That will depend on various factors such as the size of the water droplets, the humidity of the air, and the speed of the wind.

The air around the freezing water droplets does not necessarily have to be in the temperature -40°C. For water to freeze in the air, the air temperature must be below this given temperature in at least some of the places. In many places the this is true also.

Learn more about temperature:

https://brainly.com/question/2386012

#SPJ4

Answer:Most physics and biomechanics studies of a golf swing are concerned with the motion of a ... The top surface of the concrete was much smoother than the ball, ... The ball will then roll like a coin on its edge or like a ball used in lawn bowls. ... centre of the club head then the force of the ball pushing against the face

Explanation:

The energies εbonding and εantibonding for shf=0.070 can be evaluated using molecular orbital theory.In molecular orbital theory, the bonding and antibonding energies are calculated by solving the Schrödinger equation for the molecule.

The energy levels of the molecular orbitals are determined by the values of the molecular orbital coefficients and the energy of the atomic orbitals from which they are formed. Without more information about the molecule in question, it is difficult to provide a specific answer for the energies εbonding and εantibonding for shf=0.070. However, in general, the bonding energy level will be lower in energy than the corresponding antibonding level. The difference in energy between these two levels, referred to as the bonding energy gap, is a measure of the stability of the molecule. For shf=0.070, εbonding = -shf and εantibonding = shf. The bonding energy (εbonding) represents the stabilization of the molecular orbital due to the bonding interaction between atoms.

The antibonding energy (εantibonding) represents the destabilization of the molecular orbital due to the antibonding interaction between atoms. Step 1, Identify the given value of shf, which is 0.070 in this case. Step 2, Calculate the bonding energy (εbonding) by using the formula εbonding = -shf. Substitute the value of shf in the equation, εbonding = -0.070. Step 3, Calculate the antibonding energy (εantibonding) by using the formula εantibonding = shf. Substitute the value of shf in the equation, εantibonding = 0.070. So, for shf=0.070, the bonding energy (εbonding) is -0.070, and the antibonding energy (εantibonding) is 0.070.

To know more about energies visit:

https://brainly.com/question/29792091

#SPJ11

To calculate the de Broglie wavelength of the rifle bullet, we need to use the de Broglie equation which relates the wavelength of a particle to its momentum. The equation is:

λ = h / p

where λ is the de Broglie wavelength, h is the Planck constant (6.626 x 10^-34 J s), and p is the momentum of the particle.

First, we need to calculate the momentum of the rifle bullet. We can use the equation:

p = m*v

where p is the momentum, m is the mass of the bullet (5.25 g or 0.00525 kg), and v is the velocity of the bullet (1625 miles per hour or 725.44 m/s).

p = 0.00525 kg * 725.44 m/s
p = 3.8088 kg m/s

Now we can plug this value into the de Broglie equation to find the wavelength:

λ = 6.626 x 10^-34 J s / 3.8088 kg m/s
λ = 1.738 x 10^-34 m

Therefore, the de Broglie wavelength of the rifle bullet traveling at 1625 miles per hour is 1.738 x 10^-34 meters. It is important to note that this is an extremely small wavelength due to the high velocity and relatively large mass of the bullet.

To Learn more about momentum. Click this!

brainly.com/question/28654223

#SPJ11

Answer:Im doing that same quiz rn and i just put A

Explanation:

this is because EM energy is produced when electrically charged participles vibrate generating an electric filed and a magnetic field which sends out an EM wave.

i hope this helped

Answer:

See the answer below

Explanation:

Acceleration due to gravity (g) is the accelerational force experienced by a body as a result of the influence of the earth's gravitational force. It is a vector quantity, that is, it has both magnitude and direction.

The acceleration due to gravity is inversely proportional to the square of the radius of the earth. Hence, g at the equatorial region is slightly lesser (9.780 m/s2) than that of the polar regions (9.832 m/s2) of the earth because the earth bulges at the equator leading to a higher radius than at the poles.  

Explanation:

In other to avoid a situation where their differences, pride, and personalities caused them to compete and publicly insult one another instead of working together they need to respectfully consider the viewpoints of each other, as well as assign individual roles that should be respected.

The magnitude of the electric dipole moment is 9.30 × 10⁻¹⁰ Cm.

A dipole is an electrically charged object with a positive charge at one end and a negative charge at the other end. The term "dipole" refers to the separation of electric charge, with the positive and negative charges being located at opposite ends of the object. Dipoles are a fundamental concept in the study of electric and magnetic fields and have many applications in physics, chemistry, and engineering. For example, a water molecule can be considered a dipole, with the positive end being the hydrogen atom and the negative end being the oxygen atom. Dipoles also play a crucial role in chemical bonding and molecular interactions.

The magnitude of the electric dipole moment (p) can be calculated using the formula:

p = Q * d

where Q is the magnitude of the charges and d is the separation between the charges.

Plugging in the given values:

p = 1.50 nC × 6.20  = 9.30 × 10⁻¹⁰ Cm

So, the magnitude of the electric dipole moment is 9.30 × 10⁻¹⁰ Cm.

To know more about electric field, visit

brainly.com/question/8971780

#SPJ4

The efficiency values that is reasonable If you want to design a high efficiency wind turbine is 45%

The efficiency of a wind turbine is the ratio of the power it generates to the power in the wind.

The theoretical maximum efficiency of a wind turbine is the Betz limit, which is 59.3%.

However, in practice, wind turbines are typically only about 35%- 45% efficient.

There are a number of factors that can affect the efficiency of a wind turbine, including the size of the turbine, the wind speed, and the design of the turbine.

Find more exercises on efficiency value;

https://brainly.com/question/31035066

#SPJ1

The time complexity of the given loop is O(n).

This is because the outer loop runs a constant 50 times, and the inner loop runs n times. Therefore, the overall time complexity is 50 * n, which can be simplified to O(n). The outer loop runs 50 times, which is a constant amount of time. Therefore, the time complexity of the outer loop is O(1). The inner loop runs n times, which is a variable amount of time. Therefore, the time complexity of the inner loop is O(n). The overall time complexity of the loop is the product of the time complexities of the outer and inner loops, which is O(1) * O(n) = O(n). Therefore, the time complexity of the given loop is O(n).

More questions on time complexity calculation can be obtained here: https://brainly.com/question/30002520

#SPJ11

Biker 1's acceleration:

(25 mph) / (3 s) = ((25 mi/h) • (1/3600 h/s)) / (3 s) ≈ 0.00231 mi/s²

Biker 2's acceleration:

(85 mph) / (8 s) = ((85 mi/h) • (1/3600 h/s)) / (8 s) ≈ 0.00295 mi/s²

Biker 2 has the greater acceleration.

For Question 3, the statement that is NOT true when adding vectors is the same as the Pi method used for resolving a vector into its components.

When adding vectors, the Pi method is not used for resolving a vector into its components. The Pi method, also known as the method of trigonometric components, is used to break down a single vector into its horizontal and vertical components. It involves using trigonometric functions (such as sine and cosine) to determine the magnitudes of the components.

On the other hand, when adding vectors, the tip-to-tail method is commonly used. It involves placing the vectors head-to-tail and drawing an arrow from the tail of the first vector to the tip of the last vector. The resulting arrow represents the sum or resultant of the vectors. The parallelogram method can also be used, which involves constructing a parallelogram using the vectors and drawing the resultant vector from the common point of the parallelogram.

Therefore, the statement that is NOT true when adding vectors is that the Pi method is used for resolving a vector into its components.

learn more about "vectors ":- https://brainly.com/question/27854247

#SPJ11

Answer:

Explanation:

l etme y lo saoc apr aotarsy  r dealkten dpo

The rotational kinetic energy of a flywheel increases by 80% when its rotational speed increases by 40%. This is because the rotational kinetic energy of a flywheel is directly proportional to the square of its angular velocity.

The rotational speed of a flywheel increases by 40%. The percentage increase in its rotational kinetic energy is approximately 96.8%. Suppose the initial rotational speed of the flywheel is n1 and the initial rotational kinetic energy is K.E.1. After the speed of the flywheel is increased by 40 percent, the new speed is n2 = n1 + 0.4n1 = 1.4n1.

Then the new kinetic energy K.E.2 of the flywheel is given by K.E.2 = (1/2)I(n2^2)where I is the moment of inertia of the flywheel.Since n2 = 1.4n1, we have \(K.E.2 = (1/2)I(1.96n1^2) = 0.98I(n1^2).\).

Therefore, the percentage increase in the rotational kinetic energy of the flywheel is approximately 96.8%.

Read more about energy:

https://brainly.com/question/13881533

#SPJ11

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

From the question we have

\(a = \frac{5}{10} = \frac{1}{2} \\ = 0.5\)

We have the final answer as

Hope this helps you

Radio waves are most likely to be non-ionizing radiation.

Electromagnetic radiation can be classified into ionizing or non-ionizing radiation, depending on its ability to ionize atoms or molecules in its path. Ionizing radiation has enough energy to remove electrons from atoms or molecules, while non-ionizing radiation lacks sufficient energy to do so.

Radio waves have the lowest frequency and energy among the different types of electromagnetic radiation in the electromagnetic spectrum. They have a wavelength range of 1 millimeter to 100 kilometers, and their energy is typically below 10^-4 electron volts, which is not enough to ionize atoms or molecules. As a result, radio waves are classified as non-ionizing radiation.

On the other hand, ultraviolet, X-rays, and gamma rays have higher frequencies and energies than radio waves and are classified as ionizing radiation. Ultraviolet radiation has enough energy to ionize atoms or molecules in the air, causing sunburn and other skin damage. X-rays and gamma rays have enough energy to penetrate through materials, including human tissues, and can cause cellular damage or mutations if exposure occurs.

In summary, radio waves are non-ionizing radiation, while ultraviolet, X-rays, and gamma rays are ionizing radiation.

For such more questions on radiation

https://brainly.com/question/27219025

#SPJ11

Answer:

6500g

Explanation:

7000 - 500 = 6500

The mass of paint will be "6500 g".

Given:

Total mass,

Volume,

Mass of empty tin,

Now,

The mass of paint will be:

= Total mass - Mass of empty tin

By putting the values, we get

= \(7000-500\)

= \(6500 \ g\)

Thus the approach above is correct.

Learn more:

https://brainly.com/question/25002441

Answer:

the answer is c

Explanation: