The sum of the changes of potential around any closed circuit loop is:.

Answer:

Kinetic energy is the energy that an object possesses due to its motion. Hence, the correct option is [109.5 J].

The formula to calculate kinetic energy is KE = 1/2 mv², where m is the mass of the object and v is its velocity or speed. In this question, the wagon wheel is a ring of mass 77.1 kg and radius 0.630 m. The wagon is moving at 1.22 m/s. We have to calculate the total kinetic energy of the wheel.The velocity of the wagon can be converted into the angular velocity of the wheel by using the formula v = wr. The angular velocity w is calculated as:w = v/rw = 1.22 m/s ÷ 0.630 m ≈ 1.936 rad/sNow that we know the angular velocity of the wheel, we can calculate its total kinetic energy using the formula KE = 1/2 Iw², where I is the moment of inertia of the wheel. For a ring-shaped object, the moment of inertia is given by I = mr².KE = 1/2 Iw²KE = 1/2 (mr²) (w²)KE = 1/2 (77.1 kg) (0.630 m)² (1.936 rad/s)²KE ≈ 109.5 J. Therefore, the total kinetic energy of the wagon wheel is approximately 109.5 J. Note: As per the question, the total kinetic energy of the wheel is required, not of the wagon.

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Answer:

22425 J

Explanation:

From the question,

Applying

Q = cm(t₂-t₁).................. Equation 1

Where Q = Thermal Energy, c = specific heat capacity of aluminium, m = mass of aluminium, t₂ = Final Temperature, t₁ = Initial Temperature.

Given: c = 897 J/kg.K, m = 1.0 kg, t₁ = 50 °C, t₂ = 25 °C (The final temperature is reduced by half)

Substitute these values into equation 1

Q = 897×1×(25-50)

Q = 897×(-25)

Q = -22425 J

Hence the thermal energy lost by the aluminium is 22425 J

Answer:

Explanation:

As per the given information, 18(O) is struck by a proton, and 18(F) and another particle are produced. The reaction has a Q value of -2.453 MeV, and the atomic mass of 18(O) is 17.999 160 u.

We have to find the atomic mass of 18(F). The Q value of a nuclear reaction can be given as Q = (Mi - Mf - Mp) × c²WhereQ = Q

value of the nuclear reaction = initial massMf = final massMp = mass of the projectile = speed of light

The Q value of the given nuclear reaction is -2.453 MeV. Since we know the initial mass (Mi) and the mass of the projectile (Mp), we can calculate the final mass (Mf) as follows: Mf = Mi - Mp - (Q / c²)Now, let's calculate the final mass of 18(F).

Initial mass (Mi) = mass of 18(O) = 17.999 160 UMass of the projectile (Mp) = mass of a proton = 1.007 825 uQ value (Q) = -2.453 MeVSpeed of light (c) = 2.998 × 10⁸ m/sMf = 17.999 160 u - 1.007 825 u - (-2.453 MeV / (2.998 × 10⁸ m/s)²)Mf = 18.000 674 therefore, the atomic mass of 18(F) is 18.000 674 u.

Answer:

Natural

Explanation:

Answer:

It's a Natural System

Explanation:

When the Solar System was formed Human didn't even exist. the planets clashed and a lot of changes happened to create earth and different planets.

This statement is false that If you were trying to get out of the way of a storm, you would need to know the speed at which it was moving.

If you were trying to get out of the way of a storm, you would need to know the velocity at which it was moving because,

However the mathematical formula doesn't make any difference,

\(S=\frac{d}{t}\) or \(V=\frac{d}{t}\)

d= This is the distance the storm going to cover.

t= The time within the storm going to cover the distance.

S and V is the speed and velocity of the storm respectively.

Seeing the mathematical formula we cannot make difference. But from the definition we can surely conclude that If you were trying to get out of the way of a storm, you would need to know the velocity at which it was moving. Because to get out of the way of the storm not only we have to know the path but also we have to know the storm's direction of movement.

So from the above discussion we can conclude that this statement is false.

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Answer:

p = 15 newts

Explanation:

p is momentum

also there's a calculator to answer these questions.

Answer:

Please attach the picture

Answer: 37 Celsius and 310.15 K

Explanation:

C/5 = (F-32)/9 = (98.6-32)/9 = 66.6/9 = 7.4

C = 7.4 * 5 = 37 so the temperature is 37 Celsius

K = C + 273.15 = 37 + 273.15 = 310.15 K

Answer:

speed

Explanation:

The distance traveled and time, the average speed of an object can be calculated. The correct answer would be option (A).

Average speed is defined as the total distance traveled by an object divided by the total time it took to travel that distance. This is a measure of the overall pace of an object's motion over a period of time.

Instantaneous speed is the limit of the average speed as the time interval approaches zero. In other words, it's the rate of change of an object's position with respect to time at a specific moment.

Average acceleration is defined as the change in velocity (speed in a certain direction) divided by the time interval over which that change occurred. This is a measure of the rate of change of an object's speed over a period of time.

Instantaneous acceleration is the limit of the average acceleration as the time interval approaches zero. In other words, it's the rate of change of an object's velocity at a specific moment.

In summary, with the given information of distance traveled and time, the average speed of an object can be calculated, but the instantaneous speed, average acceleration, and instantaneous acceleration cannot be calculated.

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The complete question would be as:

If the distance an object travels and the time it takes to travel the distance are known, which of the following can be calculated?

A. Average speed

B. Instantaneous speed

C. Average acceleration

D. Instantaneous acceleration

Answer:

18 Newtons

Explanation:

The unbalance force is 10kg ×3m/s2= 30N

frictional force = 48-30= 18N

The force diagram of the player has been shown in the image attached here.

The force diagram of a player sliding to a stop depends on the specific situation and factors such as the player's mass, velocity, and the surface on which they are sliding. However, we can make some generalizations based on common assumptions and considerations.

We know that the force of kinetic friction that is sliding the player to a stop would tend to have a higher magnitude as shown by the force diagram.

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The correct option is B. If the skaters push away from each other, their momentum is equal but opposite.

Mass is a fundamental concept in physics that refers to the amount of matter in an object. It is a scalar quantity that has a magnitude but no direction. Mass is typically measured in units of kilograms (kg) in the International System of Units (SI).

Mass is a property of an object that resists any change in its motion, whether it is at rest or in motion. This is described by Newton's Second Law of Motion, which states that the force applied to an object is proportional to its mass and its acceleration. This relationship is often expressed as F=ma, where F is the force applied, m is the mass of the object, and a is its acceleration.

Mass is also related to energy through the famous equation E=mc², where E is the energy of an object, m is its mass, and c is the speed of light in a vacuum.

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Complete Question:

Two skaters stand facing each other.  One skater’s mass is 60 kg, and the other’s mass is 72 kg.  If the skaters push away from each other,

1. the 60 kg skater travels at a lower momentum.

2. their momentum is equal but opposite.

3. their momentum doubles.

4. their total momentum decreases

Answer: To find the moment of inertia of the system consisting of the platform, person, and dog, we can use the formula:

I = I_platform + I_person + I_dog

where I_platform, I_person, and I_dog are the moments of inertia of the platform, person, and dog, respectively.

The moment of inertia of the platform can be found using the formula for the moment of inertia of a uniform disk:

I_platform = (1/2)MR^2

where M is the mass of the platform and R is its radius. Substituting the given values, we get:

I_platform = (1/2)(121 kg)(1.71 m)^2

I_platform = 182.34 kg·m^2

The moment of inertia of the person can be found using the parallel axis theorem, which states that the moment of inertia of a body about an axis parallel to its center of mass is given by:

I_person = I_cm + Md^2

where I_cm is the moment of inertia of the person about their center of mass, M is their mass, and d is the distance between the axis and their center of mass. We can assume that the person is a uniform rod, so the moment of inertia about their center of mass is:

I_cm = (1/12)ML^2

where L is their length. Substituting the given values, we get:

I_cm = (1/12)(66.9 kg)(2(1.19 m))^2

I_cm = 6.07 kg·m^2

Substituting this into the parallel axis theorem, we get:

I_person = 6.07 kg·m^2 + (66.9 kg)(1.19 m)^2

I_person = 83.18 kg·m^2

The moment of inertia of the dog can also be found using the parallel axis theorem, assuming that the dog is a uniform cylinder. The moment of inertia about the center of mass of a cylinder is (1/2)MR^2, so the moment of inertia about the axis passing through the center of mass is:

I_dog = (1/2)MR^2 + Md^2

where M is the mass of the dog, R is the radius of the dog, and d is the distance between the axis and the center of mass of the dog. Substituting the given values, we get:

I_dog = (1/2)(25.5 kg)(0.15 m)^2 + (25.5 kg)(1.35 m)^2

I_dog = 7.68 kg·m^2

Finally, we can substitute all the values into the formula for the total moment of inertia:

I = I_platform + I_person + I_dog

I = 182.34 kg·m^2 + 83.18 kg·m^2 + 7.68 kg·m^2

I = 273.20 kg·m^2

Therefore, the moment of inertia of the system consisting of the platform, person, and dog, with respect to the axis passing through the center, is 273.20 kg·m^2.

Answer:

Explanation:

The strength of the force of friction depends on two factors: how hard the surfaces push together and the types of surfaces involved. What factors affect the gravitational force between two objects? Two factors affect the gravitational attraction between objects: mass and distance.

The correct expression for the rotational inertia of the spherically shaped object is \(\(\text{c) } 3.6m^5\)\).

In the given scenario, the students determine that the radius of the object is given by \(\(r = km^2\) with \(k = 3\, \text{m/kg}^2\)\). To calculate the rotational inertia of the object, we need to use the formula for rotational inertia of a spherical object, which is given by \(\(I = \frac{2}{5}mr^2\)\), where m is the mass of the object and r is the radius.

Substituting the given expression for r in terms of m, we have \(\(I = \frac{2}{5}m(km^2)^2\)\). Simplifying this equation, we get \(\(I = \frac{2}{5}mk^2m^4\)\).

Substituting the value of \(\(k = 3\, \text{m/kg}^2\)\), we have \(\(I = \frac{2}{5}(3\, \text{m/kg}^2)^2m^5\)\), which further simplifies to \(\(I = \frac{2}{5} \times 9 \, \text{m}^2/\text{kg}^2 \times m^5\)\).

Finally, multiplying the constants, we get \(\(I = 3.6 \, \text{m}^2/\text{kg}^2 \times m^5\)\), which corresponds to option c) \(3.6 \(m^5\)\).

Therefore, the correct expression for the rotational inertia of the object is \(3.6 \(m^5\)\).

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The maximum instantaneous power consumption of the 120 V AC microwave oven that draws 8.5 A is 1.02 kW

The maximum instantaneous power consumption of the microwave can be calculated using the formula

P = VI, where P is power in watts, V is voltage in volts, and I is current in amperes.

Therefore, the maximum instantaneous power consumption of the microwave can be calculated as follows:
P = 120 V x 8.5 A = 1020 watts
To convert wats to kilowatts, we divide by 1000, so the maximum instantaneous power consumption of the microwave in kilowatts is:
P = 1020 watts / 1000 = 1.02 kW

Hence, the maximum instantaneous power consumption of the 120 V AC microwave oven that draws 8.5 A is 1.02 kW, which can be calculated using the theory of power being equal to voltage multiplied by current.

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Answer:

a) actual reading=2mm+(0.1×8)=2.8 mm=0.28 cm

b)actual reading=5 mm+(0.1×7)=5.7mm=0.57 cm

c)actual reading=9 mm=0.9 cm

d)actual reading=0 mm+(0.1×7)=0.7 mm=0.07 cm

e)actual reading=19 mm+(0.1×9)=19.9 mm=1.99 cm

f)actual reading=15 mm+(0.1×3)=15.3 mm=1.53 cm

g)actual reading=11 mm(0.1×5)=11.5 mm=1.15 cm

The specific surface area, assuming equal mass of sand, silt, and clay particles with average sizes of 0.6 mm, 0.005 mm, and 0.0006 mm respectively, can be calculated to be a total of 9.53 square meters per gram.

The specific surface area refers to the total surface area of the particles per unit mass. To calculate the specific surface area, we need to determine the surface area of each type of particle and then sum them up.

First, we calculate the surface area of sand particles. The average size of sand particles is given as 0.6 mm. Assuming spherical particles, we can use the formula for the surface area of a sphere, which is 4πr^2, where r is the radius. Therefore, the surface area of a sand particle is 4π(0.3 mm)^2.

Next, we calculate the surface area of silt particles. The average size of silt particles is given as 0.005 mm. Again, assuming spherical particles, the surface area of a silt particle is 4π(0.0025 mm)^2.

Finally, we calculate the surface area of clay particles. The average size of clay particles is given as 0.0006 mm. Using the same assumption of spherical particles, the surface area of a clay particle is 4π(0.0003 mm)^2.

Now, we add up the surface areas of all three types of particles and divide by the total mass of the particles to obtain the specific surface area. This calculation yields a specific surface area of approximately 9.53 square meters per gram.

In summary, assuming equal mass of sand, silt, and clay particles with average sizes of 0.6 mm, 0.005 mm, and 0.0006 mm respectively, the specific surface area is calculated to be 9.53 square meters per gram.

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The concentration of an chemical in an oil spill in ppb is 0.013 ppb (approx).

concentration is the abundance of a constituent divided by the total volume to the  mixture. Several by the  types of mathematical description can be the  distinguished: mass of the  concentration, molar concentration, number and  concentration, and volume concentration.

Calculate the concentration in ppb by multiplying to the  ratio of the mass of solute to  mass of solution by 1 billion or 10 ^9

So here the answer can be calculated by

(10^ 9)(6×10 ^-8)/4600

(Here 0.060 mg = 6 × 10 ^-8 kh)

=  6/460

= 0.013 ppb (approx)

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Answer:

when you think back on something or reconsider something you have done.

As a plant grows, what provides the most matter that a plant uses for its growth is carbon from the air.

The correct option is C.

The requirements for the growth of a plant are those things that a plant needs in order to grow.

In order to thrive, plants require nutrients such as carbon from air, water, light, warmth, and air. One of these criteria may prevent a plant from growing or possibly cause it to perish. For instance, a plant left in a dark environment may grow tall and spindly in search of light before deteriorating and dying.

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Complete question:

As A Plant Grows, it gains mass Which of the following provides the most matter that a plant uses for its growth?

Minerals and nutrients from the soil

Light from the sun

Carbon from the air

Answer:

Sorry for the bad drawing, as you have not specified whether is should be open switch or close I have drawn both

I hope it helps.

========================================================

Explanation:

At 0 Kelvin, we're at the coldest temperature possible which is referred to as absolute zero. We cannot get any colder than this. At this temperature, the molecules aren't moving or vibrating to provide heat energy. The higher the temperature, the more the molecules are moving or vibrating.

The 0 degree mark on the Celsius scale is well above absolute zero. So that allows for negative Celsius temperatures to be possible. The same can be said about Fahrenheit as well. We cannot have negative Kelvin temperatures.