which of the sequences below accurately orders the waves from lowest frequency to highest frequency?

Answer:

10.032 N.

Explanation:

From the question given above, the following data were obtainedb

Mass (m) = 2.5 Kg

Final length = 10.0 cm

Original length = 21.4 cm

Spring constant (K) = 88 N/m

Force (N) =?

Next, we shall determine the compression of the spring. This can be obtained as follow:

Final length = 10.0 cm

Original length = 21.4 cm

Compression (e) =?

e = Original length – final length

e = 21.4 – 10

e = 11.4 cm

Next, we shall convert 11.4 cm to m. This can be obtained as follow:

100 cm = 1 m

Therefore,

11.4cm = 11.4 cm × 1 m / 100 cm

10 cm = 0.114 m

Finally, we shall determine the force. This can be obtained as illustrated below:

Compression (e) = 0.114 m

Spring constant (K) = 88 N/m

Force (N) =?

F = Ke

F = 88 × 0.114

F = 10.032 N

Thus, the force in the spring is 10.032 N

Answer:

Electric power has many advantages domestically and industrially, as most of the equipment run by electric power. Brightness in the night is only possible by the use of electricity. Almost all the factories and industries are running due to electric power. The advantage of electric power is its reliable and uninterrupted supply runs the equipment efficiently and continuously. The transportation of electricity is easy once the transmission lines are functional. They work for years and need no or very less maintenance. The invention of electric power is one of the best inventions which have changed human life drastically. It allows people to do more leisure activities.

In the conventional system to generate electric power, coal is burnt to generate heat which boils the water to produce steam. The steam produced is used to run the turbines which in turn generate the electricity. This is a very old method to generate electricity which produces too much air pollution as a by-product. Due to the burning of coal, carbon monoxide, carbon dioxide, different oxides of sulphur and nitrogen are pumped into the atmosphere which pollutes it badly. As carbon dioxide is the greenhouse gas and its excessive presence in the atmosphere raises the earth’s temperature.

Distribution of electric power is in two types of current, AC and DC. Alternating current is 3 to 4 times more dangerous as compared to direct current. It causes more muscle contraction as it reduces skin resistance by stimulating sweating

Answer:

Explanation:

Electricity can be used to heat either storage or continuous flow water heaters, and can also be used as a booster to solar or heat pump water heating systems.

The advantage of electricity is its reliable supply. However, in terms of sustainability and energy efficiency, conventional electric hot water heating is not a preferred option except as a booster system.

Conventional electric systems are less energy efficient than solar and heat pump systems, and generating electricity from fossil fuels produces greenhouse gas emissions. As well as these environmental costs, rising electricity prices also provide an incentive to seek more efficient energy sources.

Answer:

Hi

Explanation:

Radiation therapy is commonly applied to the cancerous tumor because of its ability to control cell growth. Ionizing radiation works by damaging the DNA of cancerous tissue leading to cellular death. To spare normal tissues (such as skin or organs which radiation must pass through to treat the tumor), shaped radiation beams are aimed from several angles of exposure to intersect at the tumor, providing a much larger absorbed dose there than in the surrounding healthy tissue

Answer:

The correct answer is C I took the mastery test

Explanation:

Answer:

d last one

Explanation:

Answer:

Magnets create a field of influence that

attracts or repels magnetic objects.

Explanation:

Hope it helps :)

Answer: The magnet has a magnetic field that either attracts or repels another magnet or magnetic metal. It is because of this magnetic field that things move.

Explanation: N/A

Answer:

P = 106.7 W

Explanation:

Given that,

Work done in lifting a backpack, W = 80 J

It is lifted in 0.75 seconds

We need to find the power of the student. The power of an object is defined as work done per unit time. So,

[tex]P=\dfrac{W}{t}[/tex]

Put all the values,

[tex]P=\dfrac{80}{0.75}\\\\P=106.7\ W[/tex]

So, the power of the student is 106.7 W.

Answer:

The answer is B

Explanation:

Answer:

35 Joules

Explanation:

Applying

Input Energy(Q) = Useful energy output(U)+Wasted Energy(W)

Q = U+W.............................. Equation 1

Make U the subject of the equation

U = Q-W................... Equation 2

From the question,

Given: Q = 120 Joules, W = 85 Joules

Substitute these values into equation 2

U = 120-85

U = 35 Joules

Answer:

λ = 1.19 x 10⁻⁶

Explanation:

The relationship between the half-life of an element and the decay constant of that element is given by the following formula:

[tex]T_{1/2} = \frac{0.693}{\lambda} \\\\\lambda = \frac{0.693}{T_{1/2}}[/tex]

where,

[tex]T_{1/2}[/tex] = half-life = 5.83 x 10⁵ s

λ = decay constant = ?

[tex]\lambda = \frac{0.693}{5.83\ x\ 10^5\ s}[/tex]

λ = 1.19 x 10⁻⁶

Explanation:

power =work done/time

work=power ×time

work =30000×10

work =300000j

Answer:

b) boy kicking a football

Explanation:

it 's because the ball was at rest but when it was kicked, it starts to more

Answer:

The half-life of a radioactive isotope is the time such that the initial amount of the isotope is reduced to its half.

Thus, if we start with A grams of a given radioactive isotope, after a 1 half-life, we will have A/2 grams of the radioactive isotope.

In this case, we know that the sample has 110g of a radioactive isotope.

Then, after 1 half-life, we should have half of 110g, which is:

110g/2 = 55g

Then we should have 55 g of a radioactive isotope.

The answer that is closer to this result is option d (50 g), so that is the correct one.

Answer:

Power = 2940 Watts

Explanation:

Given the following data;

Mass = 60 kg

Height = 300 meters

Time = 1 minutes = 60 seconds

To find the power;

First of all, we would determine the potential energy possessed by the person due to height.

We know that acceleration due to gravity is equal to 9.8 m/s².

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

[tex] P.E = mgh[/tex]

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Substituting into the formula, we have;

P.E = 60 * 9.8 * 300

P.E = 176400

Next, we find the power using the following formula;

Power = energy/time

Power = 176400/60

Power = 2940 Watts

Answer:

3.135 kN/C

Explanation:

The electric field on the axis of a charged ring with radius R and distance z from the axis is E = qz/{4πε₀[√(z² + R²)]³}

Given that R = 58 cm = 0.58 m, z = 116 cm = 1.16m, q = total charge on ring = λl where λ = charge density on ring = 180 nC/m = 180 × 10⁻⁹ C/m and l = length of ring = 2πR. So q = λl = λ2πR = 180 × 10⁻⁹ C/m × 2π(0.58 m) = 208.8π × 10⁻⁹ C and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

So, E = qz/{4πε₀[√(z² + R²)]³}

E = 208.8π × 10⁻⁹ C × 1.16 m/{4π8.854 × 10⁻¹² F/m[√((1.16 m)² + (0.58 m)²)]³}

E = 242.208 × 10⁻⁹ Cm/{35.416 × 10⁻¹² F/m[√(1.3456 m² + 0.3364 m²)]³}

E = 242.208 × 10⁻⁹ Cm/35.416 × 10⁻¹² F/m[√(1.682 m²)]³}

E = 6.839 × 10³ Cm²/[1.297 m]³F

E = 6.839 × 10³ Cm²/2.182 m³F

E = 3.135 × 10³ V/m

E = 3.135 × 10³ N/C

E = 3.135 kN/C

Answer:

Point x.

Explanation:

The potential energy of an object is simply defined as the energy stored in an object by virtue of its location. Mathematically, it is expressed as:

PE = mgh

Where

PE => is the potential energy

m => is the mass of the object

g => is acceleration due to gravity

h => is the height

From the formula i.e PE = mgh, we can see that the potential energy (PE) is directly proportional to the height (h).

This simply indicates that as the height increases, the potential energy will increase and as the height decreases, the potential energy will also decrease.

Now, let us consider the question given above.

Point x indicates the greatest height attained by the ball. Therefore, the ball will have it's greatest potential energy at point x.

I = 4.5 A

Explanation:

P = VI ---> I = P/V

I = (495 W)/(110 V)

= 4.5 A

Answer: Bedrock

Explanation:

Bedrock is the solid layer of rock beneath the soil. Soil is a mixture of rock particles, minerals, decayed organic material, air, and water. The decayed organic material in soil is humus, a dark-colored substance that forms as plant and animal remains decay.

Answer:

what is the passage? I don’t see it

Explanation:

Answer:

Less powerful

Explanation:

Hurricanes rely on warm water. It sucks heat energy from the water to use for fuel. Warmer water means more moisture, which also mean a bigger and/or stronger hurricane. The North Atlantic is definitely much colder than the Caribbean so the hurricane will not have much fuel.

Have a great day!

Answer:

46 million tons

Explanation:

i dont know what im suppose to explain

A)

The moon orbiting the Earth

Answer:

1973. K

Explanation:

PV=nRT

(5.4)(120)=(4)(0.0821)T

648=(0.3284)T

1973. = T

Using the ideal gas equation, T is measured in Kelvin.

Or, you could isolate T:

T = PV/nR

The answer is the same.

Answer:

In my opinion I think that the answer is C sorry If I get this wrong.

Answer:

Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed.

Explanation:

Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed. The minimum distance in which a sound wave repeats itself is called its wavelength. That is it is the length of one complete wave

Answer: Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed.

Explanation:

The minimum distance in which a sound wave repeats itself is called its wavelength. That is it is the length of one complete wave.

Answer:

20 m/s

Explanation:

Look at the time on the x-axis. Go up from 2 seconds until you reach a point. From that point go to the left and read from the y-axis.

Answer:

Speed = 450 miles per hour

Explanation:

Given the following data;

Time = 2 hours

Distance = 900 miles

To find the speed of the plane;

Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.

Mathematically, speed is given by the equation;

[tex]Speed = \frac{distance}{time}[/tex]

Substituting into the formula, we have;

[tex]Speed, S = \frac{900}{2}[/tex]

Speed = 450 miles per hour

Answer: The speed of the plane in miles/ hour is equal to 450miles/ hour.

Explanation:

Speed has the property of magnitude ( size) but no direction. For example, an object moving at a speed of 40m/s has a higher speed that one moving at a speed of 20m/s.

The SPEED of an object is defined as the rate of change of distance moved with time. Thus, if a journey from London to Barcelona is 900miles and takes 2 hours. The speed of the plane is determined using the formula below:

Average speed = distance/ time

Distance = 900miles

Times = 2hours

Therefore speed = 900 ÷2

SPEED = 450miles/hour

Note that speed is measured in meter per second. But according to the instruction given from the question, it was stated that the speed should be calculated in miles per hour. Therefore the answer is 450miles/hour.

Answer:

B Prime meridian

as all the others are name of latitudes

but prime meridian is a longitude

Answer:

An atom that gains or loses an electron becomes an ion

Explanation:

Answer:

Ion

Explanation:

An atom that gains or loses an electron becomes an ion. If it gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion

Answer:

1. A. Products

2. A. Atoms

3. B. (3)

Explanation:

1. Conservation of Matter states that the reactants have to equal the products.

2. Products and reactants in a balanced chemical reaction have the same number of atoms of each element.

3. Three (3) atoms of carbon would need to be represented.

Number of atoms on the left and on the right side of the balanced chemical reaction is the same, for example: Mg + 2HCl → H₂ + MgCl₂. There are two hydrogen atoms, two chlorine atoms and one magnesium atom on both side of chemical reaction.