Use these images to identify each state of matter. O O CC 0 COM A B C​

Answer:

It is recommended that you exercise within 55 to 85 percent of your maximum heart rate for at least 20 to 30 minutes to get the best results from aerobic exercise. The MHR (roughly calculated as 220 minus your age) is the upper limit of what your cardiovascular system can handle during physical activity.

(I think) ¯\_(ツ)_/¯

Answer:

169ml

Explanation:

When a ferromagnetic material is placed in an electromagnetic coil and a magnetic field is applied, the magnetic induction (B) is increased.

Therefore, the correct answer is:

(a) There is a large increase in the magnetic induction (B)

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As the object is thrown up with the initial velocity of 20.0 m/s, and there is an air resistance force that would cause an acceleration of 3.00 m/s2, the speed of the object as a return to the ground is 10.8 m/s.

The kinematic equations are a set of equations that describe the motion of an object with constant acceleration.

When we have an initial velocity value, it is written as Vo, while for the final velocity, we simply write V or Vt. As an object moves through the air, air resistance slows the object’s speed.

The formula of the kinematic equation used for solving this case is

Vt = V0 + at (the gravity is 10 m/s2)

\(Vt = Vo + (-g-a)t\\\0 = 20 + (-10-3)t\\0 = 20-13t\\\13t = 20\\\t = \frac{20}{13}\)

After the time is known, now we can insert the value into the following formula :

\(Vt = Vo + (g-a)t\\Vt = 0 + 7.\frac{20}{13} \\Vt = 0 + \frac{140}{13} \\\Vt = 10.8 m/s\)

Thus, the speed of the object returns to the ground after being thrown up with an initial velocity of 20.0 m/s and acceleration of 3.00 m/s2, which is 10.8 m/s.

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The quantities of excess electric charge that could be found on an object are option a: 6.25 x 10^-19 C and option b: 4.80 x 10^-19 C. These values represent charges in coulombs (C), which is the standard unit of electric charge.

Electric charge is a fundamental property of matter and is quantized, meaning it exists in discrete units. The elementary charge, denoted as e, is the fundamental unit of electric charge. The value of the elementary charge is approximately 1.60 x 10^-19 C.

Option a: 6.25 x 10^-19 C is a valid quantity of excess electric charge that could be found on an object. It represents a charge of 6.25 times the elementary charge. This means that the object has accumulated 6.25 times the charge carried by a single elementary charge.

Option b: 4.80 x 10^-19 C is also a valid quantity of excess electric charge that could be found on an object. It represents a charge of 4.80 times the elementary charge. Similarly to option a this means that the object has accumulated 4.80 times the charge carried by a single elementary charge.

Options c and d are not valid quantities of excess electric charge. Option c, 6.25 elementary charges, does not provide a numerical value in a standard unit of electric charge like coulombs. Option d, 1.60 elementary charges, represents the charge equivalent to a single elementary charge, which is not considered an excess charge.

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The chi-square test assumes that the variables being analyzed are measured at a nominal or ordinal level of measurement.

In statistics, the level of measurement refers to the nature and properties of the data being collected. There are four levels of measurement: nominal, ordinal, interval, and ratio. Nominal and ordinal levels are considered categorical, while interval and ratio levels are considered numerical. The chi-square test is specifically designed for analyzing categorical data, where the observations can be classified into distinct categories or groups. It is used to determine whether there is a significant association or relationship between two categorical variables.

The test calculates the difference between the observed frequencies and the expected frequencies under the assumption of independence between the variables. It compares the observed and expected frequencies using a chi-square statistic and determines the p-value to assess the statistical significance of the association. Therefore, the chi-square test assumes that the variables being analyzed are measured at a nominal or ordinal level because it deals with categorical data and evaluates the relationship between different categories or groups.

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Answer:

OPTION 3

Explanation:

Velocity specifies speed, while speed incluedes a specific direction

Explanation:

distance = speed x time

a- d= 350 m/s x 30s

   d= 10500m

b- 5 mins = 300 sec

    d= 350 m/s x 300s

    d= 105000 m

c-  30 mins = 1800 sec

    d= 350 m/s x 1800 s

   d=  630000 m

Answer:

Explanation:

The work done by an object can be found by using the formula

From the question

force = 400 N

distance = 50 m

We have

work done = 400 × 50

We have the final answer as

Hope this helps you

\(\\ \bull\tt\longmapsto \lambda=\dfrac{c}{v}\)

It has unit as meter(m)

Your weight on the moon given the data from the question is 110.5 N

Mass is simply defined as the quantity of matter present in an object. The mass of an object is constant irrespective of the location of the object.

Weight is simply defined as the gravitational pull on an object. The weight of an object varies from place to place due to gravity.

Mass and weight are related according to the following equation

Weight (W) = mass (m) × Acceleration due to gravity (g)

W = mg

W = 65 × 1.7

W = 110.5 N

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Answer:

than what is it

Explanation:

The half-life of 40K is approximately 1.3 billion years. Given a ratio of 40Ar/40K as 3/1 in a granite sample, we can estimate the age of the sample by understanding the decay process.  Based on the given 40Ar/40K ratio, the age of the sample is approximately 650 million years.

Since the half-life of 40K is 1.3 billion years, this means that after each half-life, half of the 40K atoms will have decayed into 40Ar. Therefore, if the ratio of 40Ar/40K is 3/1, it suggests that three-quarters (or 75%) of the original 40K atoms have decayed into 40Ar.

To determine the age, we can calculate the number of half-lives that have occurred based on the remaining 25% of 40K. Since each half-life is 1.3 billion years, dividing the remaining 25% by 50% (half) gives us 0.5. Thus, the sample has undergone 0.5 half-lives.

Multiplying 0.5 by the half-life of 1.3 billion years gives us an estimated age of 0.65 billion years, or 650 million years, for the granite sample.

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Answer:

chloroplast will help determine the breed of dog

The nucleus can help determine what breed the dog is.

From the analysis, it can be concluded that planet A has the strongest gravitational field, followed by planet C, and planets B and D have the same gravitational field strength.

The gravitational force acting on various masses is measured on different planets. The table shows the measured values for the forces acting on the corresponding masses:Planet Force (N) Mass (kg)A 8.0 0.50B 30 3.0C 45 3.0D 60 6.0

Method for comparing the gravitational field strengths on the different planets:First, we can use the formula for calculating gravitational force: \(`F = G (m_1m_2 / r^2)`\)where G is the universal gravitational constant `\(6.67 * 10^{-11 }Nm^2/kg^2\), m1 and m2 are the masses of the two objects in kg, and r is the distance between the centers of the objects in meters.

We know that the force is proportional to mass (F = ma). So we can calculate the acceleration due to gravity (g) on each planet by dividing the force by the mass. Therefore, we can use the formula: `g = F / m`.

Comparing the gravitational field strengths on the different planets:We will calculate the acceleration due to gravity (g) on each planet.

For planet A: `

g = F / m

= 8.0 N / 0.50 kg

= 16 \(m/s^2\)`

For planet B: `g = F / m

= 30 N / 3.0 kg

= 10 \(m/s^2\)

For planet C: `g = F / m

= 45 N / 3.0 kg

= 15 \(m/s^2\)

For planet D: `g = F / m

= 60 N / 6.0 kg

= 10 \(m/s^2\)

`So we see that planet A has the strongest gravitational field, followed by planet C, then planet B and planet D have the same gravitational field strength.

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The general relationship between wavelength and wave base is that the wave base lies at a depth equal to half the wavelength.

Therefore we can say that two times the depth the wave base lies equals to a whole wavelength. The other options " wave base lies at a depth equal to four wavelengths. wave base lies at a depth equal to three wavelengths. wave base lies at a depth equal to two wavelengths. wave base lies at a depth equal to one wavelength." are therefore inaccurate.

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Answer:

The way the body resist it's state in motion is called inertia. Its directly proportional to it's mass.

Explanation: This is what we call Newton's First Law and "State Of Motion".

Fspring = mv, where Fspring is the force of the spring, m is the mass, and v is the velocity. The correct option is C.

The momentum of the mass when the spring passes its equilibrium position can be calculated by using Newton's second law of motion, Fnet = mv. The force of the spring Fspring is equal to mv, and so the momentum is equal to mv.

The momentum of the mass when the spring passes its equilibrium position is given by xVmk. Momentum is a vector quantity that is given by the product of the mass and velocity of an object.

It is represented by p. It is denoted as p = mv, where m is the mass of the object and v is the velocity of the object. Momentum is always conserved in an isolated system.

So, the momentum of the mass is given as xVmk.

Where x is the distance the spring was compressed from its original position, m is the mass attached to the spring and k is the force constant of the spring.

The correct formula for the momentum of the mass is p = m*v which is also known as the principle of conservation of momentum. Thus, the correct answer is option C.

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Force applied: 17.14 N

Further explanation  :

Work is the transfer of energy caused by the force acting on a moving object  

Work is the product of force with the displacement of objects.  

Can be formulated  

W = Work, J, Nm  

F = Force, N  

D = distance, m  

Known

W = 600 J

d = 35 m

Then force :

F= W/d

F= 600J/ 35m

F= 17.14 N

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The capacitance of two identical capacitors connected in parallel is double that of one of the capacitors because the equivalent capacitance of two capacitors in parallel is equal to the sum of the individual capacitances.

Therefore, when two identical capacitors are connected in parallel, the total capacitance is twice that of one of the capacitors.

The capacitance of two identical capacitors connected in parallel is equal to the sum of the capacitances of the two individual capacitors. In other words, the capacitance of two capacitors connected in parallel is double the capacitance of one of the capacitors.

Explanation: Capacitance is the amount of electrical charge stored per unit of voltage applied to a conductor. When two capacitors are connected in parallel, the two plates of each capacitor become connected, creating a single plate with twice the area of a single capacitor. This means that the capacitance of two identical capacitors connected in parallel is double the capacitance of one of the capacitors.

Formula: The formula for the capacitance of two capacitors in parallel is given by: Ctotal = C1 + C2, where Ctotal is the total capacitance of the two capacitors connected in parallel and C1 and C2 are the capacitances of the two individual capacitors.

Example: if the capacitance of one capacitor is 10μF, then the total capacitance of two capacitors connected in parallel is 20μF.

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Answer:

Explanation: as,

v=f∧

v=200×10³×1.5×10³

v=2.7×10^7ms⁻¹

The velocity of the radio waves is 3 × 10⁸ ms⁻¹.

A radio station frequency = 200 KH

wavelength = 1.5 km

         Radio waves in the electromagnetic spectrum has the longest wavelength and it will always be below 300GHz. The radio waves can be generated with acceleration through some charged particles. Only through the transmitter via antenna the radio waves can gets transmitted. Radio waves can be used in all the electronic devices as mobile phones, radio communication, radars and navigations.

                               V = f λ

            Velocity,  v = ( 200 × 10³ ) × ( 1.5 × 10³ )

                               = ( 300 × 10⁶ )

                             v = 3 × 10⁸ ms⁻¹.

Hence, the velocity of the radio waves is 3 × 10⁸ ms⁻¹.

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Work can be calculated with the equation given as Work = Force × Distance

When a force acts on an object to cause a displacement, it was said that work was taking place. Three variables must be known in order to calculate the work when a force causes an object to be displaced.

Work = Force × Distance is the formula for calculating work. The joule (J), also known as the Newton meter (N m), is the SI unit for work. When an object is moved over a distance of 1 m with 1 N of force, one joule is equal to the amount of work that is accomplished.

To determine the amount of work, three quantities must be known. The force, the displacement, and the angle between the force and the displacement are the three variables.

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The temperature necessary to increase the volume to 56.1 L at constant pressure is 1192 K.

What is Temperature?

Temperature is a measure of the average kinetic energy of the particles in a substance, system or environment. The most common unit of temperature is degrees Celsius (°C), although other units such as Fahrenheit (°F) and Kelvin (K) are also used. Temperature is an important physical parameter that affects many aspects of our lives, from the weather to the functioning of our bodies.

If the pressure remains constant, then we can use the combined gas law to relate the initial and final volumes and temperatures:

where P1 = 1.00 atm, V1 = 21.0 L, T1 = 298 K, and V2 = 56.1 L.

Solving for T2:

T2 = (P2 * V2 * T1) / (P1 * V1)

Since the pressure remains constant, we can substitute P1 = P2 = 1.00 atm, and then solve for T2:

T2 = (1.00 atm * 56.1 L * 298 K) / (1.00 atm * 21.0 L) = 4 * 298 K

T2 = 1192 K

Therefore, the temperature necessary to increase the volume to 56.1 L at constant pressure is 1192 K.

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Answer:

Your tortilla would weigh 75 grams total.

Explanation:

55 grams of flour + 20 grams of water = 75 grams total

The tortilla should have a mass of 75 grams.

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means. In a mixture, each substance retains its own chemical identity and properties. The properties of a mixture can vary depending on the relative amounts of the substances that are mixed together.

There are two main types of mixtures: homogeneous and heterogeneous.

1. Homogeneous mixtures: These are also called solutions, and they have a uniform composition throughout. The components of a homogeneous mixture are not visible to the bare eye and cannot be separated by simple mechanical means. Examples of homogeneous mixtures include salt water, sugar in water, and air.

2. Heterogeneous mixtures: These are mixtures that do not have a uniform composition throughout. The components of a heterogeneous mixture are visible to the bare eye, and they can be separated by mechanical means such as filtration, sedimentation, or decantation. Examples of heterogeneous mixtures include a mixture of oil and water, a salad, and a mixture of sand and pebbles.

Here in the Question,

The total mass of the tortilla will be the sum of the mass of flour and the mass of water used to make it. So, the tortilla should have a mass of:

55 grams (flour) + 20 grams (water) = 75 grams.

Therefore, the Total mass of the tortilla is 75 Grams.

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Potential energy is simply equal to force times the relative position of a mass.

Potential energy is defined to be the energy that is held by a mass due to its position relative to other masses, its electric charge, stresses within itself, or other factors. Since energy (work) is equal to force times displacement, both force and displacement must be linked to energy, including potential energy.

For example, a type of potential energy is gravitational potential energy, which is equal to force of gravity times the height. The height here is the relative position of the mass. (How far the mass is from h = 0 is the displacement of the mass.)

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The mass of the egg = 0.23 kg

The force, F = 16 N

The acceleration, a = 68.6 m/s²

The relationship between the force (F), acceleration (a), and mass (m) is:

F = ma

Substitute F = 16, a = 68.6, and solve for m

16 = 68.6m

m = 16/68.6

m = 0.23 kg