an object in motion will have a speed which is a scaler , or ( blank ) which is a vector .

How can we relate density and pressure in liquids ??

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Answer:17: A wave can be defined as follows: It is important to realize that a wave is quite a different object than a particle. A baseball thrown though a window transfers energy from one point to another, but this involves the movement of a material object between two points.

Explanation:

18: In this way, we classify waves into electromagnetic and mechanical waves. The main difference between mechanical and electromagnetic waves is that electromagnetic waves do not require a medium to propagate whereas mechanical waves require a medium in order to propagate.

Answer:

RADIATION TEEHEE MERRY CHRISTMAS

Explanation:

The escheat doctrine is an involuntary alienation common law doctrine which transfers the property of a person who dies without heirs to the state.

Escheat is a legal principle that applies when a person dies without leaving a will or any known heirs. In such cases, the property of the deceased person is transferred to the state or government as the rightful owner. The rationale behind escheat is to prevent property from being left in a state of limbo and ensure that it is put to productive use for the benefit of society.

The specific rules and procedures regarding escheat vary by jurisdiction, as it is governed by state laws. In some cases, the state may attempt to locate any potential heirs or beneficiaries before claiming the property. However, if no rightful heirs are found within a specified period, the property reverts to the state through the process of escheat.

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Answer:

False.

Explanation:

According to Newton’s Third Law of Motion, it is practically impossible to push harder on an object than it pushes back on you because for every action, there's an equal but opposite reaction.

In order to get an object moving (motion), the net force exerted on the object must be greater. Thus, the force acting on an object in motion is not balanced.

Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.

Mathematically, net force is given by the formula;

\( Fnet = Fapp + Fg\)

Where;

Fnet is the net force.

Fapp is the applied force.

Fg is the force due to gravitation.

The True. TXVs used in air conditioning units and heat pumps are interchangeable as long as they are the same size and for the same refrigerant. However, it is recommended to follow the manufacturer's specifications and guidelines to ensure proper operation and efficiency.

True, TXVs Thermostatic Expansion Valves used in air conditioning units and heat pumps are interchangeable as long as they are the same size and for the same refrigerant. Heat pumps and air conditioners have the same set of mechanical components, the same set of the system used for heating purposes can be used for cooling purposes. This is done by the use of a reversible valve in the cycle. flow controllers are designed to adjust the flow of refrigerant into the evaporator so that only vapor leaves the evaporator.

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The force diagram on the desk consists of normal reaction and weight of the pencil.

The net force on the desk in vertical direction is 1 N.

The net force on the desk in horizontal direction is 0.

The given parameters;

The force diagram of the desk is sketched as follows;

                                             ↑ N

                                             ⊕

                                              ↓ W

Where;

The net force on the desk in vertical direction = 1 N

The net force on the desk in horizontal direction = 0

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Answer:

The rotation of the earth on its tilted axis is the reason behind the difference in the length of the day and night time in different parts of the earth throughout the year. The annual motion of the Earth is called revolution. Since the path of the Earth is elliptical, the interval between the Earth and the Sun keeps shifting.

Explanation:

Answer:

LOL i don't even know

Explanation:

An object 1.50 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high the magnification of the optical system is approximately 0.111.

The ratio of the height of an image to the height of an object is defined as the magnification of a lens. Also, magnification is equal to the ratio of image distance to that of object distance. The formula is:

Magnification = Height of Image / Height of Object

Height of Object (h₁) = 1.50 cm

Height of Image (h₂) = 0.167 cm

Magnification (M) = h₂ / h₁

M = 0.167 cm / 1.50 cm

M ≈ 0.111

Therefore, the magnification of the optical system is approximately 0.111.

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Answer:

79%.

Explanation:

Step 1:

Data obtained from the question. This include:

Input temperature = 100 °C.

Output temperature = 22 °C.

Step 2:

Conversion of celsius temperature to Kelvin temperature.

Temperature (Kelvin) = temperature (celsius) + 273

T (K) = T (°C) + 273

Input temperature = 100 °C.

Input temperature = 100 °C + 273 = 373 K.

Output temperature = 22 °C.

Output temperature = 22 °C + 273 = 295 K.

Step 3:

Determination of the efficiency of the locomotive.

Input temperature = 373 K.

Outpu temperature = 295 K.

Efficiency =...?

Efficiency = output /input x 100

Efficiency = 295/373 x 100

Efficiency = 79.1 ≈ 79%

Therefore, the efficiency of the locomotive is approximately 79%.

The number of chromosomes in cells produced by mitosis and meiosis differs significantly. While mitosis results in the production of two daughter cells with the same number of chromosomes as the parent cell, meiosis results in the production of four haploid daughter cells with half the number of chromosomes as the parent cell.

Mitosis and meiosis are two different processes that result in the production of new cells. The number of chromosomes in the cells produced by these processes differs significantly.
Mitosis is a process of cell division that results in the production of two genetically identical daughter cells. The number of chromosomes in the cells produced by mitosis is the same as the parent cell. This means that if the parent cell has 46 chromosomes, each of the two daughter cells produced by mitosis will also have 46 chromosomes. This process is essential for the growth, repair, and maintenance of tissues in our body.
Meiosis, on the other hand, is a process of cell division that results in the production of four genetically diverse daughter cells. During meiosis, the number of chromosomes is reduced by half, resulting in the formation of haploid cells. If the parent cell has 46 chromosomes, each of the four daughter cells produced by meiosis will have only 23 chromosomes. This process is crucial for sexual reproduction, where two haploid cells combine to form a diploid zygote.
In summary, the number of chromosomes in cells produced by mitosis and meiosis differs significantly. While mitosis results in the production of two daughter cells with the same number of chromosomes as the parent cell, meiosis results in the production of four haploid daughter cells with half the number of chromosomes as the parent cell.

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Answer:

  about 4.74 seconds

Explanation:

The time to fall distance d from height h is given by ...

  t = √(2d/g)

  t = √(2·110 m/(9.8 m/s^2)) ≈ 4.74 s

It will take the car about 4.74 seconds to fall 110 meters to the river.

__

We assume the car's speed is horizontal, so does not add or subtract anything to/from the time to fall from the height.

Answer: True.

Explanation:

You would be able to visualize the basketballs height going up and when it sinks down into the hoop.

Answer:

As Per Provided Information

We have been asked to determine the maximum height reached by the object .

here we will take acceleration due to gravity g is 9.8 m/s².

For calculating the maximum height attained by the object we will use the following formula .

\( \boxed{\bf \:H_{(max)} \: = \cfrac{u {}^{2} {sin}^{2} \theta }{2g}}\)

Substituting all the value in above equation we obtain

\(\sf \qquad \: \longrightarrow\:H_{(max)} \: = \cfrac{ {25}^{2} {sin}^{2} {50}^{ \circ} }{2 \times 9.8} \\ \\ \\ \sf \qquad \: \longrightarrow\:H_{(max)} = \cfrac{625 \times(0.766) {}^{2} }{19.6} \\ \\ \\ \sf \qquad \: \longrightarrow\:H_{(max)} = \cfrac{625 \times 0.586756}{19.6} \\ \\ \\ \sf \qquad \: \longrightarrow\:H_{(max)} = \cfrac{366.7225}{19.6} \\ \\ \\ \sf \qquad \: \longrightarrow\:H_{(max)} = \cancel \cfrac{366.7225}{19.6} \\ \\ \\ \sf \qquad \: \longrightarrow\:H_{(max)} =18.71 \: m\)

Therefore,

Explanation:

The Carbon Cycle and Earth's climate Carbon Dioxide is an atmospheric constituent that plays several vital roles in the environment. It is a greenhouse gas that traps infrared radiation in the atmosphere. it plays a crucial role in the weathering of rocks. it is the carbon source for plants.

The final weight will be reduced by 0.1 of its original weight.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

A mathematical expression is made up of terms(constants and variables) separated by mathematical operators.

A mathematical equation is used to equate two expressions.

Given that, fictional shrinking man shrinks proportionately to 1/10 th of his original height.

Let, weight be W.

W = mg

m = ρ V

Then W = ρ V g

Assume the body to be cylinder of radius r and height h, we can write,

W = π r²ρ g h

So, the initial weight is W = π r²ρ g h

After shrinking W becomes W'.

W' = π r²ρ g h/10

Then, W'/W = (π r²ρ g h/10)/π r²ρ g h = 0.1

Thus, the final weight will be reduced by 0.1 of its original weight.

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The velocity of the fourth piece after the explosion is 118.5 m/s at 14.7⁰ east of north.

The principle of conservation of linear momentum states that the sum of the initial momentum is equal to sum of final momentum.

Initial momentum of the bomb before explosion is equal to the final momentum of pieces of bomb after explosion.

Pi = Pf

0 = P₁ + P₂ + P₃ + P₄

0 = mv₁ + mv₂ + mv₃ + mv₄

0 = v₁ + v₂ + v₃ + v₄

Consider x-y plane for the velocity of the piece of bomb;

\(0 = (v_1x + v_1y) + (v_2x + v_2_y) + (v_3x + v_3_y) + (v_4_x + v_4_y)\\\\0 = (0 - 50y) + (-80x + 0) + (-40cos30x + 40sin30y) + (v_4_x + v_4_y)\\\\0 = -50y -80x - 34.64x + 20y + v_4_x + v_4_y\\\\0 = -30y - 114.64x + v_4_x + v_4_y \\\\v_4_x + v_4_y = 114.64x + 30y\\\\|v_4| = \sqrt{114.64^2 + 30^2} \\\\|v_4| = 118.5 \ m/s\\\\tan(\theta ) = \frac{30}{114.64} \\\\tan(\theta) = 0.262\\\\\theta = tan^{-1} (0.262)\\\\\theta= 14.7 \ ^0\)

Thus, the velocity of the fourth piece is 118.5 m/s at 14.7⁰ east of north.

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Answer:d

Explanation:tsssss

The block will not move.

The amount of force that would be required to move the block is 73.5 N

Force can be defined as the product of mass and acceleration.

The S.I unit of force is Newton (N)

For the block to move, The horizontal force applied to the block but be greater than the static friction of the floor on the block.

Where:

From the question,

Given:

Substitute these values into equation 1

Comparing F and F', It can be seen that

There, The block will not move.

The amount of force that would be required to move the block is 73.5 N

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Answer: C) Increase the amplitude of the wavelenghth to increase the intensity.

Explanation:

Plastic deformation is the permanent change of shape or size of an object when a force is applied beyond its elastic limit. It occurs when a material is subjected to a force that exceeds its elastic limit and the material does not return to its original shape.

Ductile deformation is a type of plastic deformation where a material is deformed without fracture. This means that it can be stretched or pulled into a wire or thin sheet. The following conditions are associated with plastic deformation:High temperature: High temperature favors plastic deformation since it softens the material and allows for greater dislocation movement and rearrangement.High pressure: High pressure also promotes plastic deformation, making the material more ductile.Slow rate of deformation: Slow deformation rates allow time for dislocations to move and adjust. As a result, the material undergoes more plastic deformation.Fast rate of deformation: Fast deformation rates do not allow enough time for dislocations to move and adjust, so the material undergoes less plastic deformation.However, none of the conditions mentioned above are associated with plastic deformation. Therefore, the correct answer is none of the above.

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The type of bond found in pure gold is metallic bonding, indicated by metallic bonds. Therefore option A is correct.

Metallic bonding occurs between metal atoms, such as gold, and is characterized by the sharing of electrons among a sea of delocalized electrons.

In metallic bonds, the valence electrons of metal atoms are not strongly bound to any particular atom but are free to move throughout the metal lattice.

This sharing of electrons gives rise to properties such as high electrical and thermal conductivity, malleability, and ductility, which are characteristic of metals like gold.

Unlike ionic or covalent bonds, metallic bonds do not involve the transfer or sharing of electrons between different elements.

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Answer:

Could you explain more?

Explanation:

The man has traveled a total distance of approximately 165.05m from his starting point.

To determine the distance traveled by the man from his starting point, we need to use the Pythagorean theorem to calculate the hypotenuse of the right triangle formed by his movements. The first movement, walking north for 80m, forms the vertical leg of the triangle, while the second movement, turning right and walking for 50m, forms the horizontal leg. This gives us the first right triangle.

Using the Pythagorean theorem, we can find the length of the hypotenuse:

\(c^2 = a^2 + b^2\)

\(c^2 = 80^2 + 50^2\)

\(c^2\) = 6,400 + 2,500

\(c^2\) = 8,900

c = 94.34

The third movement, turning right and walking for 10m, forms another leg of the triangle, and the final movement, taking a left turn and walking for 70m, forms the hypotenuse of a second right triangle.

Using the Pythagorean theorem again, we can find the length of the second hypotenuse:

\(c^2 = a^2 + b^2\)

\(c^2 = 10^2 + 70^2\)

\(c^2 = 100 + 4,900\)

\(c^2 = 5,000\)

c = 70.71

To find the total distance traveled, we add the lengths of the two hypotenuses:

94.34 + 70.71 = 165.05

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Answer:

:Meterology, Seismology,

The total momentum after collision is 143.466 kgm/s.

The momentum of a body is the product of the mass and the velocity of the body.

Assuming the right direction as positive and left direction as negative:

Momentum to the right = 46.3 * 5.24 = +242.612 kgm/s

Momentum to the left = 55.4 * -1.79 = -99.166 kgm/s

Total momentum before collision =  +242.612 kgm/s - 99.166 kgm/s

Total momentum before collision = 143.466 kgm/s

Thus, total momentum after collision is 143.466 kgm/s.

In conclusion, momentum is conserved in an isolated system of colliding bodies.

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Answer:

The energy that can be stored in the capacitor is 239 nJ

Explanation:

We first calculate the capacitance of each material. Let C₁ be the capacitance of pyrex glass and C₂ be the capacitance of polystyrene.

C₁ = κ₁ε₀A/d where κ₁ = dielectric constant of pyrex glass = 5, A = area of plates = L² where L = length of square plate = 7.40 cm = 7.40 × 10⁻² m and d = thickness of pyrex slab = 1.60 mm = 1.60 × 10⁻³ m and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

C₁ = κ₁ε₀A/d = κ₁ε₀L²/d = 5 × 8.854 × 10⁻¹² F/m × (7.40 × 10⁻² m)²/1.60 × 10⁻³ m = 2424.2252/1.60 × 10⁻¹¹ F = 1515.14 × 10⁻¹¹ F = 15.2 × 10⁻⁹ F = 15.2 nF

C₂ = κ₂ε₀A/d where κ₂ = dielectric constant of polystyrene = 3, A = area of plates = L² where L = length of square plate = 7.40 cm = 7.40 × 10⁻² m and d = thickness of polystyrene slab = 1.60 mm = 1.60 × 10⁻³ m and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

C₁ = κ₁ε₀A/d = κ₁ε₀L²/d = 3 × 8.854 × 10⁻¹² F/m × (7.40 × 10⁻² m)²/1.60 × 10⁻³ m = 1454.5351/1.60 × 10⁻¹¹ F = 909.08 × 10⁻¹¹ F = 9.09 × 10⁻⁹ F = 9.09 nF

Since the capacitors are in series, we find their effective capacitance C from

1/C = 1/C₁ + 1/C₂

C = C₁C₂/(C₁ + C₂)

= 15.2 × 10⁻⁹ F × 9.09 × 10⁻⁹ F/(15.2 × 10⁻⁹ F + 9.09 × 10⁻⁹ F)

= 138.168 × 10⁻¹⁸/24.29 × 10⁻⁹ F

= 5.69 × 10⁻⁹ F

The amount of electrical energy stored in a capacitor is given by W = 1/2CV² where C = capacitance and v = voltage applied. Now C = 5.69 × 10⁻⁹ F and V = 84.0 V for this capacitor

So W = 1/2 × 5.69 × 10⁻⁹ F × 84.0 V

= 238.98 × 10⁻⁹ J

≅ 239 × 10⁻⁹ J

= 239 nJ

So the energy that can be stored in the capacitor is 239 nJ