The 25-mph zone is 150 yards long. How much time did the student save (in seconds) by speeding past the school

Para hacerlo a m/s un método muy práctico es sólo dividir entre 3.6, por cuestiones de conversiones, lo puedes comprobar.

212 km/hr /3.6 = 58 m/s

Comprobación :

V= d / t

V= 212 m / 18000 seg <---- nota que aquí los segundos son de las 3.1hrs  

V= 58 m/seg

The gas company would actually gain money by having gas warmed before it passed through your gas meter. This is because the price of natural gas is determined by volume, but gas meters measure the volume of gas at a standardized temperature and pressure.

This means that if the gas entering the meter is colder than the standardized temperature, it will have a higher volume, and therefore the customer will be charged for more gas than they actually received. By warming the gas before it enters the meter, the volume is reduced and the customer is charged for the actual amount of gas they received.

Therefore, the gas company would gain money by ensuring that gas is warmed before it passes through the meter. It is important to note that there are regulations in place to ensure that gas is not warmed beyond a certain temperature, as this could pose a safety hazard.

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Answer:

If anyone is from connections someone shld make a quizlet w quick check answers

Explanation:

The force of gravity is an attractive force that acts between any two bodies on the earth.

Given that;

F = Kq1q2/r^2

F = 90 N

r = 1 m

q1= q2 = q1^2

q1 =√Fr^2/K

q1 = √90 × 1/9.0 × 10^9

q1 = 1 × 10^-4 C

Then;

F = 9.0 × 10^9 × (1 × 10^-4 )^2/3^2

F = 10 N

2) From;

F = Gm1m2/r^2

F = 6.6  × 10^-11 Nm^2Kg^-2  × 0.156 Kg × 0.170 Kg/(0.75 m)^2

F = 3.15 x 10-12 N

3) The acceleration of a particle due to the Coulomb force depends on both the charge and the mass.

4) F = Gm1m2/r^2

Where m1=m2 = m1^2

m1 =√F/r^2/G

m1 = √20 N ( 4 m)^2/6.6  × 10^-11 Nm^2Kg^-2

m1 = 2.2  × 10^6 Kg

To find r when F = 5N

r =√Gm1^2/F

r =√6.6  × 10^-11 Nm^2Kg^-2 × (2.2  × 10^6 Kg)^2/5N

r = 8 m

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Answer:

(a)   the gravitational influence on visible matter can not be explained by matter that can be seen.

Answer:

Volcanoes on Earth form from rising magma. ... Magma also rises when these tectonic plates move toward each other. When this happens, part of Earth's crust can be forced deep into its interior. The high heat and pressure cause the crust to melt and rise as magma.

Answer:

moon

Explanation:

cause yes

According to the data given in the question, the planet that is closest to Earth in the most categories (temperature, distance from the star, and planet radius) is planet #2.

The differences in temperature, distance from the star, and planet radius of planet #2 compared to Earth are as follows:

Temperature: 5810 K - 5200 K = 610 K

Distance from star: 1 AU - 0.92 AU = 0.08 AU

Planet radius: 1 Rₑ - 2.0 Rₑ = -1.0 Rₑ

Based on the data, planet #2 is closest to Earth in temperature, distance from the star, and planet radius compared to the other planets listed. Therefore, it is the planet on which we might expect life.

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Answer:

1. The elephant has more kinetic energy at this speed and mass. It has 4,500 J more KE.

2. The elephant would have to go at a speed of 2.5 m/s to reach the same KE as the cheetah.

Explanation:

You would use the formula KE=1/2mv^2.

This formula would be filled in and completed twice, once for the elephant and once for the cheetah.

Cheetah:

KE = 1/2 (40) (25) ^2

KE = 12,500 J

Elephant:

KE = 1/2 (4,000) (2) ^2

KE = 8,000 J

This shows that the cheetah has more KE.

Then you would subtract the elephants amount of J from the cheetahs to find the difference.

Difference = 12,500 J - 8,000 J

Difference = 4,500 J

I hoped this helped with the first part :)

For the second part:

To find the speed the elephant would have to run you would fill in and complete the equation once more with different distance results.

KE = 1/2 (4,000) (2.5) ^2

KE= 12,500 J

(1) The kinetic energy of the cheetah is 12,500 J while kinetic energy of the elephant is 8,000 J

(2) The speed that the animal with lowest kinetic energy need to match up with the animal with highest kinetic energy is 2.5 m/s.

(3)    At the highest point, the kinetic energy of the ball is zero while the potential energy will be maximum.

       At the lowest point, the kinetic energy of the ball will be maximum while potential energy will be zero.

The kinetic of object, is the energy possessed by the object due to its motion.

The kinetic energy of the cheetah is calculated as;

K.E = ¹/₂mv²

K.E = ¹/₂  x 40 x 25²

K.E = 12,500 J

The  kinetic energy of the elephant is calculated as;

K.E = ¹/₂  x 4000 x 2²

K.E = 8,000 J

(2) The speed of the animal with less kinetic energy to match up with the animal with higher kinetic energy;

12,500 = ¹/₂  x 4000 x v²

25,000 = 4000v²

\(v^2 = \frac{25,000}{4000} \\\\v^2 = 6.25\\\\v= \sqrt{6.25} \\\\v = 2.5 \ m/s\)

(3) In a simple pendulum motion, point A (initial position) is the lowest point while point B (final position) is the highest point in the motion path.

At the highest point, the velocity of the ball is zero and the ball will have zero kinetic energy while the potential energy which increases with height will be maximum.

At the lowest point, the velocity of the ball will be maximum and the ball will have maximum kinetic energy while potential energy will be zero since the height is zero.

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Answer:

4 m/

Explanation:

Velocidad = Distancia ÷ Tiempo

Si la distancia recorrida es de 40m y el tiempo que le llevó a hacerlo es de 10s. Entonces:0

V = 40m/10s

=4m/

Answer:

https://earthobservatory.nasa.gov/features/EnergyBalance#:~:text=The%20atmosphere%20absorbs%2023%20percent,surface%20radiates%20only%2012%20percent.

Explanation:

Answer:

Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

Answer:

10,000

Explanation:

200,000/20 = power needed

200,000/20 = 10,000

Hope this Helps!

Answer:

10,000 Watts

Explanation:

Power is the ratio of work to time, or work over time. It can be found using the following formula.

p=w/t

where p is the power, w is the work, and t is the time.

The project needed 200,000 Joules, and it took 20 seconds to complete the project. Therefore, w=200,000 and t=20. Substitute these values into the formula.

p=200,000/20

Divide

p=10,000

Add appropriate units. The units for power is Watts.

p=10,000 Watts

10,000 Watts of power is needed.

The acceleration due to gravity of an object dropped on planet X is 8 m/s²

From the question given above, the following data were obtained:

Height (H) = 64 m

Time (t) = 4 s

Acceleration due to gravity (g) on planet X =.?

The acceleration due to gravity on planet X can be obtained as follow:

H = ½gt²

64 = ½ × g × 4²

64 = ½ × g × 16

64 = g × 8

Divide both side by 8

g = 64 / 8

Therefore, the acceleration due to gravity on planet X is 8 m/s²

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In Chapter 10 of the book Leader Within You 2.0 by Maxwell, the author emphasizes on the importance of persistence. He highlights that persistence is necessary for attaining success in any area of life. It is particularly important for leaders who are looking to bring change or innovate.

Persisting through challenges and obstacles is crucial because it is inevitable that these challenges will arise. Maxwell provides various examples of famous leaders who persisted through difficult times. He notes that leaders should not be discouraged by failure and that they should use it as an opportunity to learn from their mistakes and grow

Additionally, leaders should not be afraid to take risks because it is impossible to achieve success without taking risks. Maxwell concludes the chapter by emphasizing that persistent people never give up and that persistence is key to reaching success.

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Answer:

Constant and positive constant

Explanation:

The object move with the same velocity at the same interval

This question is asking for five different questions about density, mass and volume which can be all summarized with the following definition of density as the degree of compactness of the objects taken into consideration:

\(\rho =\frac{m}{V}\)

In such a way, we can proceed as follows:

15. the mass is given as 42 g and the volume can be found by multiplying the given dimensions:

\(V=2cm*6cm*7cm=84 cm^3\)

And the density turns out to be:

\(\rho =\frac{42g}{84cm^3}=0.5 g/cm^3\)

16. both mass and density are given as 17 g and 120 g/mL respectively, so that we have to solve for the volume as shown below:

\(V=\frac{m}{\rho} =\frac{17g}{120g/mL} =0.14 mL\)

17. the mass is given as 23 g and the volume as 123 mL, so that the density is calculated as shown below:

\(\rho=\frac{23g}{123 mL} =0.19 g/mL\)

Which can be converted to kg/mL as follows:

\(0.19\frac{g}{mL} *\frac{1kg}{1000g}=0.00019 kg/mL\)

18. the mass is given as 45 g and the density as 240 g/cm³, so we can solve for the volume as follows:

\(V=\frac{m}{\rho} =\frac{45g}{240g/cm^3}=0.19 cm^3\)

19. In this case, since the water has lower density than the object, we can infer that the latter is heavier than the former, this means that the object will sink according to the Archimedes principle.

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Answer:

the answer is semidiurnal

Answer:

I think it is semi-diurnal :)

Hope this helps!!

Have a great day!!

Please rate and mark brainliest!!

Entropy is the measure of how much useful energy is left in a system according to the Second Law of Thermodynamics.

Entropy is a measure of the amount of energy that is unavailable for use, and it increases as energy is used for work and some of the energy is lost as heat.

Entropy is an important concept in thermodynamics, as it is directly related to the efficiency of energy transfer or conversion processes. It is a measure of the amount of energy that is lost or wasted during a process, and it increases when energy is transferred from a hotter body to a cooler body.

The higher the entropy of a system, the lower the efficiency of any conversion of energy from one form to another. Therefore, it is important to understand entropy in order to design efficient energy-conversion systems.

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Moped riding represent angry customers in the model from the lesson.

Moped riding refers to the riding of a special type of small motorcycle, generally having a less stringent licensing requirement than full motorcycles or automobiles.

Generally, the word "moped riding" describes any two-wheeledth with a step-through chassis and footrest platform. These two-wheeled vehicle are usually equipped with bicycle-like pedals that the rider uses to propel the vehicles.

Although motorcycles are usually very harder to learn to ride

The following are other types of riders:

So therefore, moped riding represent angry customers in the model from the lesson.

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Skyler velocity after throwing the snowball  is 9.34 m/s in forward direction.

A body's velocity is the rate at which its displacement alters with respect to time. A vector quantity with both magnitude and direction is velocity. The meter/second unit of measurement for velocity.

Given that Skyler whose mass is 74.5 kg is moving across at 9.52 m/s while holding a 2.05 kg carefully packed snowball.

forward speed of the snowball = 15.9 m/s.

Let the Skyler velocity after throwing the snowball = v.

According to principle of conservation of momentum;

Total initial momentum = total final momentum

⇒ (74.5 + 2.05)9.52 = 74.5×v + 15.9×2.05

⇒ 74.5×v  = (74.5 + 2.05)9.52  - 15.9×2.05

⇒ v = 9.34 m/s.

Hence, velocity of the Skyler  is 9.34 m/s. in forward direction.

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Answer:

Brightness.

Explanation:

very bright.

Light energy with very high amplitude would be perceived as very bright or intense light.

Waves with a big maximum displacement or height relate to light energy with a very high amplitude.

This large amplitude equates to a greater intensity or brightness of light in terms of perception.

When high-amplitude light waves enter our eyes, they excite light-sensitive cells, such as the cones in our retinas, more powerfully.

As a result of the increased stimulation, the sense of a bright or powerful light source is formed. The magnitude of the light's amplitude is interpreted by the human visual system as a measure of its intensity, allowing humans to distinguish between dimmer and brighter light sources.

Thus, in human visual experience, light energy with a very high amplitude is related with a heightened feeling of brightness or intensity.

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The energy required to warm one gram of water by one celsius degree is called a specific heat

The specific heat also known as specific heat capacity, is an intensive property specific, and representative of each substance. It is defined as the energy or amount of heat required to raise the temperature of 1 kilogram (kg) of mass by one degree Celsius (°C).  

In the International units system of measurement the specific heat is expressed  in Joules per kilogram per degree Kelvin.

It is the physical magnitude that allows us to know the degree of heat that a body or an environment has. The higher the temperature, the greater the degree of heat.

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Answer:

increase distance

Explanation:

Inclined planes make it easier to move objects to a higher elevation. The sloping surface of the inclined plane supports part of the weight of the object as it moves up the slope. As a result, it takes less force to move the object uphill.

Answer:

Hello your answer would be increase of distance

Explanation:

I know that because than you would have to go upward with the object.

(b) There are 9 different possible combinations of quantum numbers for the two 2p electrons in carbon.

(c) There is only 1 different set of quantum numbers possible for the two electrons in carbon, taking into account the Pauli principle.

(b) The quantum numbers that describe an electron in an atom are the principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (ml), and spin quantum number (ms). Ignoring the Pauli principle, each of the two 2p electrons in carbon can have its own set of quantum numbers.

For the 2p sublevel, the azimuthal quantum number (l) can have a value of 1, and the magnetic quantum number (ml) can have values of -1, 0, and 1. The principal quantum number (n) will be the same for both electrons since they are in the same sublevel.

Therefore, for each electron, there are 3 possible combinations of quantum numbers: (n, l, ml). For the two electrons, we can multiply these possibilities together: 3 * 3 = 9.

Thus, ignoring the Pauli principle, there are 9 different possible combinations of quantum numbers for the two 2p electrons in carbon.

(c) The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers. This means that for the two electrons in carbon, each combination of quantum numbers can only be used once.

Since there are 9 different possible combinations of quantum numbers obtained in part (b), applying the Pauli principle eliminates 9 - 1 = 8 of these combinations. This is because one combination will be the same as the other when the order of the electrons is switched.

Therefore, after applying the Pauli principle, only 1 out of the 9 possible combinations remains.

In summary, there is only 1 different set of quantum numbers possible for the two electrons in carbon, taking into account the Pauli principle.

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Answer:

Damp Proofing:

Explanation:

The presence of damp proofing is very necessary to maintain the health of a structure. DPC plays an important role in all types of buildings and it should be necessary to know about the importance, requirements, and properties of DPC. In many of the buildings all over the world, the rising damp may be due to a damaged damp-proof course, or sometimes, there may be not any damp proof course in a building.

The maximum speed with which the car can round the curve is approximately 24.5 m/s (or 88.2 km/h).

To find the maximum speed with which an automobile can round a curve of radius 30 m on a level horizontal road, we need to consider the centripetal force and the maximum force of friction that can act on the car.

The centripetal force required to keep the car moving in a circle of radius 30 m is given by F = mv²/r,

where m is the mass of the car and v is its speed. The maximum force of friction that can act on the car is given by Ff = μN, where μ is the coefficient of friction and N is the normal force. We can equate these two forces to find the maximum speed of the car, which turns out to be approximately 24.5 m/s (or 88.2 km/h).

Therefore, the maximum speed at which this car can round the curve is 88.2 km/h, assuming no other factors such as air resistance, road conditions, or driver ability affect the car's motion.

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Answer:120700.8

Explanation: