An adiabatic process is one in which the: Group of answer choices altitude of the air parcel remains constant. heat exchanged with the surroundings is zero. work done is zero. temperature remains constant. pressure on the air parcel remains constant.

The mass of the refrigerator can be calculated using Newton's second law of motion. Given that a force of 20 N causes the refrigerator to accelerate at 2 m/s², the mass of the refrigerator is 10 kg.

Newton's second law of motion states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. Mathematically, it can be represented as F = m * a, where F is the force, m is the mass, and a is the acceleration.

In this scenario, a force of 20 N is applied to the refrigerator, resulting in an acceleration of 2 m/s². We can rearrange the formula to solve for mass, which gives us m = F / a. Plugging in the values, we have m = 20 N / 2 m/s², which simplifies to m = 10 kg. Therefore, the mass of the refrigerator is 10 kg.

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The weight will be 80N.

Given :- Weak Gravitational field of moon relative to earth ,

F=1.6N

To find : Weight of a 50Kg mass on Moon .

Principle - Weight and mass although sounding same has different roles in Physics . Mass is the amount of matter that is utilized to build a material while talking about weight means its inclusive of an exertion of earth with the application of mass. Mathematically weight w= mg [Product of mass and gravity ]

Now in this question using basic unitary method we can resolve the ask of question. For example cost of one pen is 2rupee then cost of 2 pens is 4 rupees.

Reasoning- As per question , weight of 1 kg = 1.6N

so weight of 50Kg= 1.6 x 50⇒80N

Hence the amount of 80N equivalent weight is computed.

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In series: The combined resistance is equal to the sum of the individual resistances (R_total = R1 + R2 + R3).

In parallel: The combined resistance is the reciprocal of the sum of the reciprocals of the individual resistances (1/R_total = 1/R1 + 1/R2 + 1/R3).

When resistors are connected in series, their resistances add up to give the total resistance. In this case, the combined resistance in series would be the sum of the individual resistances: R_total = R1 + R2 + R3.

On the other hand, when resistors are connected in parallel, their reciprocals sum up to give the inverse of the total resistance. In this case, the formula for calculating the combined resistance in parallel is: 1/R_total = 1/R1 + 1/R2 + 1/R3.

Let's assume the resistance values are R1 = 1 ohm, R2 = 2 ohms, and R3 = 3 ohms.

For the series connection: R_total = R1 + R2 + R3 = 1 + 2 + 3 = 6 ohms.

For the parallel connection: 1/R_total = 1/R1 + 1/R2 + 1/R3 = 1/1 + 1/2 + 1/3 = (6 + 3 + 2) / 6 = 11 / 6. Taking the reciprocal of both sides, we get R_total = 6 / 11 ohms.

Therefore, the combined resistance in the series connection is 6 ohms, while in the parallel connection, it is 6/11 ohms.

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Answer: Liquid

Explanation:

The liquid does not have a fixed shape or volume and takes the shape or volume of the container

Governments assist in enhancing the infrastructure necessary for companies to flourish and helps business provide the goods and services that people need and want.

What is economics?

Economics is the study of how limited resources are used to create outputs, such as commodities and services, that are then distributed among individuals. Resources serve as the resources for creating outputs. Products and services are created by combining resources. The necessary raw ingredients are provided by land and natural resources. Raw materials are turned into finished products and services by labor.

Businesses perform better when they can effectively transport raw materials to factories and deliver finished goods to plants and markets. Governments assist in enhancing the infrastructure necessary for companies to flourish. Roads, bridges, rail lines, airports, seaports, energy transmission lines, and telecommunications networks are all included in this.

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The length of copper wire needed to provide 16 W of heating power is determined by various parameters, including the wire's resistivity and the voltage applied to it.

We may use the formula P = (V2)/R, where P is power, V is voltage, and R is resistance, assuming a standard voltage of 120 V and a resistivity of 1.68 x 10-8 m for copper wire. The resistance of the wire may be determined using the formula R = (L)/A, where is the resistivity, L is the wire's length, and A is the wire's cross-sectional area. The cross-sectional area of a wire with a diameter of 0.57 mm may be computed using the formula A = r2, where r is the wire's radius. We may use the cross-sectional area to calculate the length of wire required to provide 16 W of heating power. When we solve for L, we get: L = (1.68 x 10-8 m)((0.57/2 x 10-3 m)2)(16 W)/(120 V)2 3.09 m As a result, a copper wire with a diameter of 0.57 mm and a length of around 3.09 m would create 16 W of heating power.

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Answer:

Explanation:

Potential Energy =  m * g * h =  .6 * 9.8 * 35 = 205.8 J

Answer:

\(30 \div 33750 = 0.008888\)

The velocity of the bowling ball travelling after the collision will be 6.4 m/sec. Apply law of conservation of momentum principle in given problem.

According to the law of conservation of linear momentum before the collision is equal to the momentum after the collision. These laws state that about how momentum gets conserved.

Apply law of conservation of momentum principle;

m₁v₁+m₂v₂=(m₁+m₂)V

6 kg×5 m/s+1.5 kg×12= 7.5 kg*V

48=7.5 kg*V

V=6.4 m/sec

Hence,the velocity of the bowling ball travelling after the collision will be 6.4 m/sec.

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Answer:980 N

Explanation:

Answer:

5.4

Explanation:

a=∆v/∆t

27/5 = 5.4

Density of the rock after submerging in a beaker of  water is 2.67ˣ10³Kg/m³.

We are given some quantities like Force = 20.0 N,Density = 1000 kg/m³.We need to calculate the mass of the rock firstly when it is reading 20N.

Similarly,the scale new reads 12.5 N,we need to again find the mass of the rock.

Using formula of force,we know that

F=mg

=>20N=m×10

=>m=20/10

=>m=2kg.

Now,Scale reads 12.5 N after rock is totally submerged so mass of rock after submerged.We need to calculate the mass of rock

Using formula of force,

F=mg

=>12.5=m×10

=>m=12.5/10

=>m=1.25Kg.

The scale reads 12.5 N = 1.25 kg so it is displacing 0.75 kg of water

We need to calculate the volume of rock using volume of water it displaces.Since,density is given we need to use the formula of volume which is given by

Volume=mass/density

=>V=0.75/1000

=>V=7.5×10⁻⁴m³

After finding the volume,we need to calculate the density of the rock.

Using formula of density,

density=mass/volume

=>density=2kg/7.5×10⁻⁴m³

=>density=2666.66kg/m³

=>density=2.67ˣ10³Kg/m³

Hence, density of rock is 2.67ˣ10³Kg/m³.

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Explanation:

The potential energy of an object has the following formula

         Potential energy = mgh

      where m = mass of the object

                   g = acceleration due to gravity

                   h = height of the object

This means that the potential energy of an object depends upon its mass, acceleration due to gravity, and height.

In the given situation we have a bucket full of water. If the mass and acceleration due to gravity are not changed, the only way the potential energy can be decreased is by reducing the height of the bucket full of water.

This can be done by: -

         (i) Lifting the bucket full of water in such a way that you

             decrease its height as compared to the bench.

        (ii) Put the bucket full of water on a stool whose height is

            lower than the bench.

Answer:

1.By decreasing it's contents- this decreases the weight of the bucket thus decreasing the potential energy of the bucket.

2.By decreasing the height of the bench we have decreased the amount of potential energy stored in the bucket

Hey how are you doing buddy

We have to use the properties of a linear transformation to prove A(-u) = -v.

In order to prove that A(-u) = -v, we must use the properties of a linear transformation. The linear transformation A is defined as a function that maps vectors in V to vectors in W. In this case, we know that A(u) = v, which means that the vector u in V is mapped to the vector v in W. Now, let's consider the vector -u in V. Since A is a linear transformation, it follows that A(-u) = -A(u).

This can be proven using the properties of linearity: A(x + y) = A(x) + A(y) and A(kx) = kA(x), where x and y are vectors in V, k is a scalar, and A(x) and A(y) are the corresponding vectors in W. Applying this property to -u and u, we get A(-u + u) = A(0) = 0, which implies that A(-u) + A(u) = 0, or A(-u) = -A(u). Substituting v for A(u), we obtain A(-u) = -v, which completes the proof.

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Answer:

Explanation:

The speed of the car can be found by using the formula

\(s = \frac{d}{t} \\ \)

d is the distance

t is the time

From the question we have

\(s = \frac{125}{2} = 62.5 \\ \)

We have the final answer as

Hope this helps you

The total mass of living organisms on Earth is estimated to be 360 trillion tons.

To convert the mass of living organisms on Earth from kilograms to tons, we need to divide the total mass by the conversion factor, which is 907 kg per ton.

First, we can write the given mass in scientific notation:

3.6 * \(10^{14\) kg

Next, we can divide this mass by 907 kg/ton:

(3.6 * \(10^{14\) kg) / (907 kg/ton)

Simplifying this expression, we can cancel out the units of kilograms, leaving us with tons:

3.6 * \(10^{14\) / 907 tons

To evaluate this expression, we can use a calculator or simplify the numerator and denominator separately:

3.6 * \(10^{14\) = 36 * \(10^{13\) = 360 * \(10^{12\)
907 = 1 * 907

So, the expression becomes:

360 * \(10^{12\) / 1

And simplifying this further:

360 trillion tons

Therefore, the total mass of living organisms on Earth is estimated to be 360 trillion tons.

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Explanation:

Wavelength is the distance between two consecutive and equivalent points on a wave. Wavelength can be quantified by measuring the distance between two equivalent and consecutive points, such as the distance between two peaks or two troughs. The scientific symbol for wavelength is a Greek letter called lambda.

Answer:

I think its the second law..

Explanation:

Answer:

its the second law.

hope this helps! :)

Answer:

18000 J

Explanation:

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

At point 4:

Mass of cart = 600 Kg

Velocity of cart (v) = 7.745 m/s

Kinetic energy (KE) =?

KE = ½mv²

KE = ½ × 600 × 7.745²

KE = 300 × 7.745²

KE ≈ 18000 J

Therefore, the mechanical energy of the cart at point 4 is 18000 J

Answer:

30N

Explanation:

Answer:

people could just have a space heater or they are wearing warm clothes.

Explanation:

COMMON SENSE!!!!!

When he swings a rubber bung around his head on a string, the centripetal force is caused by the tension in the string.

When an object travels in circular path, a force which makes an object to continue to move in circular motion is the centripetal force which is directed towards the center of the path.

Thus, When he swings a rubber bung around his head on a string, the tension force is developed in the string which is in turn balanced by the centripetal force.

Thus, the centripetal force is caused by the tension in the string.

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Answer:

Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.

Explanation

The part of a microscope that focuses on divergent light rays is the condenser. Option (d)

The condenser is located below the stage and collects light from the light source then concentrates and directs it onto the specimen on the stage. It consists of a lens or lenses that focus the light and an aperture that controls the amount of light passing through.

The condenser plays an important role in the quality of the image produced by a microscope, as it determines the intensity and uniformity of the illumination of the specimen. By adjusting the focus and aperture of the condenser, it is possible to optimize the image clarity and contrast.

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The period of a wave is the time it takes for one complete wave to pass a fixed point. We are given that 4 complete waves pass a fixed point in 10 seconds.

To find the period, we can divide the total time by the number of complete waves:  10 seconds ÷ 4 waves = 2.5 seconds per wave


To determine the period of a water wave, we need to know how much time it takes for one complete wave to pass a fixed point. In this case, 4 complete waves pass in 10 seconds.

Step 1: Find the time it takes for one complete wave to pass.
Divide the total time (10 seconds) by the number of complete waves (4 waves).

10 seconds / 4 waves = 2.5 seconds

Step 2: Identify the corresponding answer choice.
The period of the water wave is 2.5 seconds, which corresponds to answer choice C.

Your answer: C: 2.5 s

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The speed of the  Toyota Corolla would have  been 143.9 mph.

The acceleration of the F-15 can be calculated as follows:

Acceleration = Velocity Change / Time = (Take-off Speed) / Time

where;

Take-off Speed = √(2dg /t²)

Take-off Speed = √(2 x  (270 ft)  x 32.2 ft/s² / (2 s)²)

T  = √(17496) = 131.6 ft/s

Acceleration = Velocity Change / Time

= (131.6 ft/s) / (2 s) = 65.8 ft/s²

We can use the same acceleration to launch the Toyota Corolla, and calculate its final velocity:

Final Velocity = Initial Velocity + Acceleration x Time

where;

Final Velocity = 0 + (65.8 ft/s²) * (2 s) = 131.6 ft/s

Finally, we can convert the velocity from feet per second to miles per hour:

Velocity (mph) = Velocity (ft/s) x (1 hour/3600 s) x (5280 ft/mile)

= 131.6 ft/s x  (1 hour/3600 s)  x (5280 ft/mile)

= 143.9 mph

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Answer:

I think its D.....

Answer:

the last one

Explanation:

Just took the test

The sports car is easier to push because it has less mass and therefore less inertia.

Inertial mass is the property of an object that determines how its motion changes when a force acts on it.

Inertia is the resistance of any physical object to a change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed when no forces act upon them.

The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. The amount of inertia an object has is determined by its mass. The mass of a substance or object is based on the number and density of atoms in it.

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