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what do you think would happen if this froest ecosystem experienced an extreme drought that cut the popluation of primary producers in half?

Resultant angle; θ = 25.59°  

This question is dealing with bearings and distance.

We are told that from point A, the camel walks 20 km at 15° in the south of east direction.

Thus, d_s,e = 20 km

Resolving along the horizontal east direction gives; d_e = 20 cos 15

d_e = 19.32 km

Also, resolving along the vertical south direction gives; d_s = 20 sin 15

d_s = 5.18 km

Net vertical distance; d_vert = 8km - 5.18km = 2.72 km

Net horizontal distance; d_hor = 25km - 19.32 km = 5.68 km

Now, the resultant angle is given by;

tan θ = d_vert/d_hor

tan θ = 2.72/5.68

tan θ = 0.4789

θ = tan^(-1) 0.4789

θ = 25.59°

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Answer:

look in internet u can find online converter and there u will get a rel answer

Explanation:

Five activities that will see the application of relation between pressure and area include:

When the handle of a pump is squeezed, the pressure inside the tire increases, causing the tire to inflate. By adjusting the size of the opening in the showerhead, the water pressure can be increased or decreased.

When a car is placed on a hydraulic lift, the pressure in the lift's cylinder is increased, causing the lift to raise the car off the ground. When a hydraulic jack is used to lift a heavy object, the pressure in the jack's cylinder is increased, causing the jack to lift the object.

A blood pressure cuff uses pressure to measure the blood pressure in a person's artery. The pressure in the cuff is increased until it is high enough to stop the flow of blood, and then the pressure is slowly released. The pressure readings at various points during this process can be used to determine a person's blood pressure.

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The raft will need approximately 11 logs to keep the three children afloat in fresh water.

The weight of the three children combined is:

W = 3 x 397 N = 1191 N

The volume of one log is given by:

V = πr²h = π(0.33/2)²(2.05) = 0.113 m³

The weight of one log can be found using the density of wood, which is approximately 600 kg/m³:

m = ρV = 600 kg/m³ x 0.113 m³ = 67.8 kg

The buoyant force acting on each log is equal to the weight of the water displaced by the log, which is given by:

Fb = ρVg = 1000 kg/m³ x 0.113 m³ x 9.81 m/s² = 111 N

The number of logs needed to support the weight of the children can be found by dividing their weight by the buoyant force per log:

N = W/Fb = 1191 N/111 N ≈ 11 logs

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Answer:

Option A (1.51 m) is the appropriate option.

Explanation:

The given values are:

Speed of wave,

= 362 m/s

Period,

= 4.17

Now,

⇒  \(v=\frac{\lambda}{T}\)

then,

⇒  \(\lambda=vT\)

⇒     \(= 362\times 4.17\times 10^{-3}\)

⇒     \(=1.51 \ m\)

Answer:

stationary in an electric field.

moving perpendicular to a magnetic field.

moving perpendicular to an electric field.

Explanation:

Negative charge: In physics, the term "negative charge" is defined as a phenomenon that consists of a surplus or different electrons in any field i.e magnetic or electric field.

However, the correct answer in the question above, would be:

"stationary in an electric field".

"moving perpendicular to a magnetic field".

"moving perpendicular to an electric field".

The energy needed to heat the water and the copper tank to 55°C is 25,083,080 J.

Q = mCΔT

m = 150 kg (mass of water)

C = 4.18 J/g°C (specific heat capacity of water)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{water}\) = mCΔT

\(Q_{water}\) = (150 kg) x (4.18 J/g°C) x (40°C)

\(Q_{water}\) = 25,080,000 J

m = 20 kg (mass of tank)

C = 0.385 J/g°C (specific heat capacity of copper)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{tank}\) = mCΔT

\(Q_{tank}\) = (20 kg) x (0.385 J/g°C) x (40°C)

\(Q_{tank}\)= 3080 J

Finally, we can add the two energies together to get the total energy needed:

\(Q_{total}\) = \(Q_{water}\) \(+\) \(Q_{tank}\)

\(Q_{total}\) \(= 25,080,000 J + 3080 J\)

\(Q_{total}\) \(= 25,083,080 J\)

Energy is a fundamental concept that refers to the ability of a physical system to do work or cause a change. It is a scalar quantity that is measured in units of joules (J) in the International System of Units (SI). According to the law of conservation of energy, energy cannot be created or destroyed, but it can be transformed from one form to another. This means that the total amount of energy in a closed system remains constant.

Energy is a crucial concept in many areas of physics, including mechanics, thermodynamics, and electromagnetism. Understanding energy is essential for understanding how the physical world works, and it has numerous applications in technology and everyday life, from powering our homes and vehicles to the production of food and the functioning of our bodies.

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Answer:

Astronauts feel weightless in orbiting the space shuttle because they are constantly in a state of free fall.

Explanation:

The force of gravity is still present at that height, but the astronauts are essentially falling around the Earth instead of falling toward it. Thus, the sensation of weightlessness is achieved by the continuous state of free-falling. It is not because gravity is weaker in space. In order to calculate how much weaker gravity is 700 km above the Earth's surface, we will use the formula for gravitational force which is:

F = (G × m₁ × m₂) / r²where F is the force of gravity G is the gravitational constant, m₁ and m₂ are the masses of the two objects, r is the distance between the centers of the two objects. The gravitational force between the Earth and an object on its surface is: F = (G × m₁ × m₂) / r²Where m₁ is the mass of the object, m₂ is the mass of the Earth, and r is the radius of the Earth (6,371 km).Therefore, the force of gravity at a height of 700 km above the Earth's surface can be calculated as: F = (G × m₁ × m₂) / r²F = (6.67 × 10^-11 N m²/kg² × 1 kg × 5.97 × 10^24 kg) / (6371 km + 700 km)²F = 1.17 N/kg².

The force of gravity at 700 km above the Earth's surface is only about 10% weaker than on the Earth's surface. This shows that the sensation of weightlessness experienced by astronauts is not because gravity is weaker in space.

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(a) The direction of the electric field along the positive z axis is in the +z direction.

According to the given information, the disk has a uniform positive surface charge density. In situations involving charged objects, the electric field points away from positive charges and towards negative charges.

Since the disk has a positive surface charge density, the electric field lines will point away from the disk.

In this scenario, since the disk lies in the x-y plane and is centered at the origin, the electric field lines will be symmetrically distributed around the disk and perpendicular to its surface. Along the positive z axis, the electric field lines will point directly away from the disk in the +z direction.

Therefore, the correct answer is that the direction of the electric field along the positive z axis is in the +z direction.

This result is consistent with the general rule that the electric field lines emanate radially outward from a positively charged object.

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Answer:

It's d

Explanation:

Answer: D

Explanation:

Force of gravity

Answer:

 a = 1.66 m /s²

Explanation:

This is a kinematics exercise

       v = v₀ + a t

        x = v₀ t + ½ a t²

we solve for the initial velocity in the first equation and substitute in the second

       v₀ = v - at

        x = (v- at) t + ½ a t²

        x = vt - a t² + ½ a t²

        x = v t - ½ a t²

we seek acceleration

       a = (v t -x) 2 / t²

let's calculate

        a = (15 6 - 60) 2/6²

        a = 1.66 m /s²

Answer:

Each student gets 4 green stickers and 5 purple stickers or a total of 9 stickers.

Explanation:

The greatest common divisor (GCD) of two or more natural numbers or integers (not numbers with decimals) is the largest number that divides them. In other words, the Greatest Common Divisor is the greatest of the common divisors of several numbers. To calculate it, each of them is decomposed into prime factors. The GCD is the result of multiplying the factors that are repeated in all the decompositions, affected by the smallest exponent.

In the event that no factor is repeated, the GCD of those numbers is 1, and the numbers are said to be "prime to each other."

In this case, the decomposition of 12 and 15 is:

12 = 2²*3.

15=3*5

So the GCD between 12 and 15 is 3

Now, to calculate how many green and purple stickers each student receives, you simply divide the amount of each sticker color by 3.

12÷3= 4

15÷3= 5

So, each student gets 4 green stickers and 5 purple stickers or a total of 9 stickers.

Answer:

True

Explanation:

I took the test

l = AR/ resistivity

A = 3 × 10^-3 square centimeter

R = 600 ohms

resistivity = 110 × 10^-6 ohmh centimeter

substitute the values in the formula and find l

Answer:

v = 3231.09887 m/s

Explanation:

The attached image includes the steps to get to the answer provided.

Answer:

c

Explanation:

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When two charged objects are moved to 2  meters apart from 1 meter. Then, both Gravity and electrostatic forces will be weak.

The electrostatic force and gravity force is inversely proportional to square of distance between two objects.

                      \(F\alpha\frac{1}{r^{2} }\)

Where r is distance between both charged objects.

When two charged objects are moved to 2  meters apart from 1 meter. Then, both Gravity and electrostatic forces will be weak.

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Answer: 48 mph

Explanation: 48*2.5=120

Intermodulation products in a linear power amplifier can have several effects, including signal distortion and unwanted interference.

Intermodulation products are the result of nonlinearities within the amplifier, where multiple input signals mix and produce additional frequencies that are not present in the original signals. These additional frequencies can fall within the desired frequency range, causing distortion and degradation of the output signal.

The presence of intermodulation products leads to intermodulation distortion (IMD). IMD introduces unwanted spurious signals, creating interference in the form of additional frequencies that can interfere with other nearby signals or frequencies. This interference can affect the performance of other devices or systems operating in the vicinity.

To minimize intermodulation distortion, it is essential to design and operate linear power amplifiers within their linear operating range. Nonlinearities in the amplifier, such as saturation or overload conditions, should be avoided or minimized. Proper filtering and signal conditioning techniques can also help reduce intermodulation products and mitigate their negative effects.

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Answer:

Hey mate....

Explanation:

This is ur answer....

Hope it helps!

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OPTION  B IS THE ANSWER

Answer:

The real answer is A 2023 answer -_-

Explanation:

a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

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Answer:

0.14 m/s/s

Explanation:

Answer: The system of unit which is most convenient for use is the MKS unit.

Explanation:

System of units is defined as the complete set of units which comprises of both the fundamental units and the derived units. The mass, length and time are considered to be the fundamental quantities and their units are called the fundamental units. The systems of unit which are in common use can be compared through their description below:

--> MKS system of unit: In this system of unit, the unit of length is in meter (m). The unit if mass is in kilogram (k). The unit of time is in seconds (s). Hence the name m.k.s system of unit.

--> CGS system of unit: In this system of unit, the unit of length is in centimeter (cm). The unit if mass is in grams (g). The unit of time is in seconds (s). Hence the name c.g.s. system of unit.

--> FPS system of unit: In this system of unit, the unit of length is in foot (Ft). The unit if mass is in pound (Lb). The unit of time is in seconds (s). Hence the name m.k.s system of unit.

The system of unit which is most CONVENIENT for use is the MKS unit. This is because of the introduction of the international system of units (S.I unit). This unit was endorsed by the International Standard Organisation (ISO) to form a logical and interconnected framework for all measurements in science and technology. The MKS system of unit was made the SI units enabling physical quantities to be represented by only one unit.

Answer: 2

Explanation:

The total amount of heat released by a heat engine to the low-temperature reservoir in one cycle is less than the amount of heat taken in from the high-temperature reservoir in one cycle.

This is because a heat engine converts some of the heat from the high-temperature reservoir into useful work, while the remaining heat is released to the low-temperature reservoir. In a step-by-step manner:

1. The heat engine takes in heat from the high-temperature reservoir.
2. A portion of this heat is converted into useful work.
3. The remaining heat, which is not converted into work, is released to the low-temperature reservoir.

The efficiency of the heat engine determines how much of the heat is converted into work and how much is released to the low-temperature reservoir.

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Explanation:

the weight of an object is its force exerted by gravity.

on earth we take gravitational acceleration to be 9.8 m/s^2

so the weight of an object on earth is given by F = mg

hence,

F = 90 × 9.8

F = 882 Newtons (weight on earth)

gravitational acceleration on the moon is equal to 9.8/6. so, we can just use the same formula to find the weight on the moon.

F = 90 × 9.8/6

F = 147 Newtons (weight on the moon)

make sure to ask if you need any further guidance.

Answer:

Explanation:

Let's look at a mathematical representation of this. The equation for tis is just a souped up version of Newton's 2nd Law:

F - f = ma. It an object is moving at a constant speed, the acceleration of that object is 0. That changes this equation to

F = f which states that the applied Force equals the frictional force, choice a.