Why give it is necessary to have exhibition sometimes give two point
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The ball reaches a maximum height of approximately 42.83 ft.  the ball lands at a horizontal distance of approximately 81.36 ft. he average value of f(x)= x³8 +9x on the interval is 10.5.

To determine the maximum height and horizontal distance traveled by the ball shot at an angle of 45 degrees with an initial velocity of 41 ft/sec and neglecting air resistance, we can use basic kinematic equations.

Maximum Height:

The maximum height reached by the ball can be calculated using the equation for vertical displacement:

y_max = (v₀² * sin²θ) / (2g),

where v₀ is the initial velocity, θ is the launch angle (45 degrees), and g is the acceleration due to gravity (32 ft/s²).

Plugging in the values, we get:

y_max = (41² * sin²45°) / (2 * 32) = 42.83 ft.

Therefore, the ball reaches a maximum height of approximately 42.83 ft.

Horizontal Distance:

The horizontal distance traveled by the ball can be calculated using the equation for horizontal displacement:

x = v₀ * cosθ * t,

where x is the horizontal distance and t is the time of flight.

Since the ball goes up and then comes back down, the total time of flight can be calculated as:

t_total = 2 * (v₀ * sinθ) / g.

Plugging in the values, we get:

t_total = 2 * (41 * sin45°) / 32 ≈ 2.88 s.

Using this total time, we can find the horizontal distance:

x = 41 * cos45° * 2.88 ≈ 81.36 ft.

Therefore, the ball lands at a horizontal distance of approximately 81.36 ft.

Moving on to the second question:

To find the position of a particle at time t = 14, given its acceleration, initial position, and initial velocity, we can use the equations of motion.

The position function s(t) can be obtained by integrating the acceleration function twice with respect to time. Since the given acceleration is a linear function, we have:

s(t) = (1/6)at³ + (1/2)v₀t² + s₀,

where a is the acceleration, v₀ is the initial velocity, and s₀ is the initial position.

Plugging in the given values, we get:

s(14) = (1/6)(24)(14)³ + (1/2)(15)(14)² + 12 ≈ 546.67.

Therefore, the position of the particle at time t = 14 is approximately 546.67.

Lastly, for the average value of f(x) = x³ + 9x on the interval [1, 2], we can use the formula for the average value of a function on an interval:

Average value = (1 / (b - a)) * ∫[a, b] f(x) dx,

where [a, b] represents the interval.

Plugging in the values, we have:

Average value = (1 / (2 - 1)) * ∫[1, 2] (x³ + 9x) dx.

Evaluating the integral, we get:

Average value = (1 / 1) * [(1/4)x⁴ + (9/2)x²] evaluated from 1 to 2,

Average value = (1/4)(2⁴ + 9(2²)) - (1/4)(1⁴ + 9(1²)),

Average value = (1/4)(16 + 36) - (1/4)(1 + 9),

Average value = (1/4)(52) - (1/4)(10),

Average value = 13 - 2.5,

Average value ≈ 10.5

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Carbon dioxide is removed from Earth's atmosphere by plant photosynthesis. The correct option is C.

Plant photosynthesis is the process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen. This process is essential for the production of food and oxygen in the atmosphere.

Animal respiration (option A) releases carbon dioxide into the atmosphere, contributing to an increase in atmospheric carbon dioxide levels.

Decaying organisms (option B) also release carbon dioxide into the atmosphere as part of the natural carbon cycle, but they do not remove carbon dioxide from the atmosphere.

Burning fossil fuels (option D) releases large amounts of carbon dioxide into the atmosphere, contributing to the increase in atmospheric carbon dioxide levels.

Plant photosynthesis (option C), on the other hand, removes carbon dioxide from the atmosphere as plants use carbon dioxide during the process of photosynthesis to produce carbohydrates and release oxygen.

Therefore, Plant photosynthesis is the only option that correctly identifies a process that removes carbon dioxide from the atmosphere.

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The two hockey players move off together at a common velocity of 7 m/s after the collision.

What is principle of conservation of momentum?

We can apply the momentum conservation concept to resolve this issue. This rule states that a closed system's total momentum is conserved both before and after a collision.

The product of an object's mass and velocity determines its momentum. As a result, we can determine each hockey player's momentum prior to the contact using the formulas below:

The total momentum of the system before the collision is the sum of these individual momenta:

           p_total = p1 + p2 = 420 kg m/s + 560 kg m/s = 980 kg m/s

The two hockey players fall off together after the collision. After the collision, their velocities are unknown to us, but we do know that their total momentum is still preserved. Hence, we can write:

                     p_total = (m1 + m2) * v_total

where v_total is the common velocity of the two hockey players after the collision. We can rearrange this equation to solve for v_total:

v_total = p_total / (m1 + m2)

= 980 kg m/s / (70 kg + 70 kg)

= 7 m/s

Therefore, the two hockey players move off together at a common velocity of 7 m/s after the collision.

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Answer:

120°

Explanation:

Given forces with magnitude F and F

Applying the parallelogram law of vector

Where resultant is given as :

R = √(A^2 + B^2 + 2ABCos Ф

WHERE A and B are two forces with angle Ф

F =√(F^2 + F^2 + 2F * F Cos Ф

Square both sides

F^2 = F^2 + F^2 + 2F^2 CosФ

F^2 - 2F^2 = 2F^2 CosФ

- F^2 = 2F^2 Cos Ф

Divide both sides by 2F^2

- 1 / 2 = CosФ

Cosine(theta) = - 1/2

Ф = cosi^-1 (-1/2)

Ф = 120°

Answer:

key is not the component of circuit

Answer:

c. Key

Explanation:

All the others make sense.

Answer:

\( \boxed{energy} \to \: is \: the \: capacity \: for \: doing \: work. \\ \: energy \: can \: exist\: in \: vaious \: forms : such \: as \to \\ \boxed{thermal}\boxed{mechanical}\boxed{chemical}\boxed{solar}......etc.\\ its \to \: \boxed{ solar \: energy} : without \: solar \: energy \\ \: i \: dont \: think \: life \: on \: earth \: or \: \\ other \:p lanetry \: bodies \: would \: be \: possible. \\ \: solar \: energy \: from \: different \: stars \\ \: are \: responssible \: for \: warming \: of \: thier \: solar \: systems \\ \: and \:collectively \: saves\: thier \: galaxies \: from \: being \: \boxed{dark \: cold}.\)

Explanation:

♨Rage♨

When the temperature of the blocks is the same as the temperature of your hand, you feel neither hot nor cold to the touch. Hence, option ( 3) is correct.

Temperature is a unit used to describe hotness or coldness. It can be stated in terms of any number of arbitrary scales and shows the direction in which heat energy will naturally flow, i.e., from a hotter body to a colder body (one at a lower temperature).

Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a much higher temperature.

If you touch a block that is at higher than or  at lower than  the temperature of your hand, you feel hot or cold respectively. But,  when the temperature of the blocks is the same as the temperature of your hand, you feel neither hot nor cold to the touch.

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Answer:

1. Installing solar panels on the roof. This is an example of renewable energy, and solar panels help provide electricity for a home.

2. Using LED lights instead of traditional lightbulbs. The modern LED lights use much less electricity and function up to 90% more efficiently than the traditional lightbulbs.

3. Using rain barrels to collect water from the roof. Installing rain barrels to collect rainwater to water your plants and garden is a great way to save water and cut down on your water bill.

Hope this helps! :)

An equation that will let you calculate the last Q that was needed for this temperature change is Q = MCΔT.

The following formula can be used to determine how much heat is required to cause a change in temperature:

Q = MCΔT

Where:

The required heat, Q, is expressed in joules (J).

M is the substance's mass, expressed in grams (g)

C is a substance's specific heat capacity expressed in J/g°C.

T is the change in temperature expressed in degrees celsius (°C).

As a result, we can determine how much heat is required to change the temperature as follows:

Q = MCΔT

Q = 420 x 3.52 x 43.8

Q = 64753.92 J

Thus, 64753.92 J of heat are required to change the temperature.

Your question is incomplete but most pprobably your full question was

The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The specific heat capacity of a certain substance has been measured to be 3.52 J/g °C. Suppose 420.0 g of the substance is heated until the temperature of the sample has changed by 43.8 °C.

Write an equation that will let you calculate the last Q that was needed for this temperature change. Your equation should contain only symbols. Be sure to define each symbol.

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Answer:

Solubility

Explanation:

Solubility involves dissolving a substance

Answer:

If there is no cloud (liquid water) in the parcel

Explanation:

Answer:

fjriykckangjcksktkykcjwjtjcsj

Answer:

Current, I = 20 Amperes.

Explanation:

Given the following data;

Voltage = 40 V

Resistance = 2 Ohms

To find current flowing through the resistor;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

\( V = IR\)

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Making current (I) the subject of formula, we have;

\( I = \frac {V}{R} \)

Substituting into the formula, we have;

\( I = \frac {40}{2} \)

Current, I = 20 Amperes.

Answer:

49 is the answer

Explanation:

Take the highest number and the lowest and subtract! :)

Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

\(\hrulefill\)

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

Earth has an albedo of about 30 percent, reflecting much of the sun's radiation back into space.

The energy that the Sun emits into space in the form of electromagnetic waves is known as solar radiation. This energy, which the Sun's surface emits, affects climatological and atmospheric processes.

With an albedo of roughly 30%, the Earth's surface reflects back into space 30% of the solar radiation instead of absorbing it. Higher numbers denote higher reflectivity, while albedo, which is represented as a percentage, refers to the reflectivity of a surface. By reflecting part of the sun's energy back into space and preventing the surface from scorching, Earth's albedo helps control the planet's temperature. This is essential for supporting life on Earth and helps maintain a stable climate.

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The complete question -

Earth has an _______ of about 30 percent, reflecting much of the sun's radiation back into space.

We will have that the picture that shows the highest average kinetic energy is image B.

Answer:

Doors, Windows & Ventilator is a part of building component which is allow to Air & light move & circulate inward & outward, with in door Human or any other material can be move inside or outside also. here types of doors & windows & ventilation are given with necessity of location, function etc.

Window ventilators are used for ensuring a supply of fresh air from the outside into the interior. They are used in rooms with natural ventilation, mechanical extract ventilation or hybrid ventilation. ... It automatically adjusts the inflow of fresh air depending on the level of relative humidity in the room.

Explanation:

Answer: the answer to the question is B

Because of the fact that it keeps switching, from kinetic to potential, and again from potential to kinetic, as a result, while it is moving around in motion, it will lose energy.

:D

Best of Luck!

The distance the bus travelled in 20 seconds is 12.75 m

The first step is to write out parameters given in the question

Final velocity= 15

Initial velocity= 5

Time= 20

Distance= ?

V² + U²= 2as

15² + 5²= 2(9.8)s

225+25= 19.6s

250= 19.6s

s= 250/19.6

= 12.75

Hence the distance the bus travelled in 20 seconds is 12.75 m

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Answer: below

Explanation: Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume

Answer:

Density is defined as the amount of matter contained in unit volume of body

Answer:

Explanation:

M(a+g)

The force acting on the top box by the bottom box both having a mass of m stacked in an elevator moving upward with an acceleration of a is,

m(a +g).

Force is an external factor acting on a body to change it from the state of motion or rest. There are different types of forces such as gravitational force, nuclear force, tension force etc.

Newton's second law states that the force acting on a moving body is the product of its mass and acceleration. If the body of mass m is moving upward with an acceleration a, the force F will be equal to ma.

If the body moves downwards, then the net acceleration is the gravity g that is 9.8 m/s².

Here, both the boxes are moving upward and experience an acceleration a. The force exerted by the box at the bottom is with the acceleration g.

Thus ,the net force experienced by the box at the top by the box at the bottom is equal to F= m (a + g) .

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Answer:

A) Increased levels of atmospheric carbon dioxide

Explanation:

All of the other options are positive effects

Answer:

= 316.67 m/s^2

Explanation:

Acceleration formula =

A = \(\frac{V_{f} - V_{i} }{t}\)

\(A = \frac{1000 - 50}{3}\)

= \(\frac{950}{3}\)

= 316.67 m/s^2

Answer:

I think the answer you're looking for is particulate matter.

Explanation:

A) Formulate policies to protect wetlands and ensure that the policies are enforced.

B) Wetlands hold important biodiversity. They are a source of foods, medicines, and raw materials. They help with stabilizing the climate.

As a governor of my state, the two most important steps to protect wetlands include:

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To protect the wetlands, I will ensure a strict enforcement of all existing state laws on the conservation of wetlands.

The wetlands are those areas that consists of marshes and swamps. They are of great important to the ecosystem and biodiversity.

a) The two things that I will do to protect wetlands are;

b) Wetlands are very important because;

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Answer:

\(K_{i}+U_{g,i} = K_{f}+U_{g,f}\)

Explanation:

A closed system is a system where exists energy interactions with surroundings, but not mass interactions. If we neglect any energy interactions from boundary work, heat, electricity, magnetism and nuclear phenomena and assume that process occurs at steady state and all effects from non-conservative forces can be neglected, then the equation of energy conservation is reduce to this form:

\(\Delta K +\Delta U_{g} = 0\) (1)

Where:

\(\Delta K\) - Change in kinetic energy of the system, measured in joules.

\(\Delta U_{g}\) - Change in gravitational potential energy of the system, measured in joules.

If we know that \(\Delta K=K_{i}-K_{f}\) and \(\Delta U_{g} = U_{g,i}-U_{g,f}\), then we get the following equation:

\(K_{i}+U_{g,i} = K_{f}+U_{g,f}\) (2)

Where \(i\) and \(f\) stands for initial and final states of each energy component.

Hence, the right answer is \(K_{i}+U_{g,i} = K_{f}+U_{g,f}\)

Answer:

KEi + PEi = KEf + PEf

Explanation

right on edge 2020

Unlike a straight wire where various segments of the wire are at varying distances from a given location, a circular loop has all charges flowing at the same distance from a point on its axis. the magnetic field is concentrated after being spread out in the case of a straight wire.

According to Faraday's Law, when a magnet is moved into a coil of wire, altering the magnetic field and magnetic flux through the coil, a voltage is produced in the coil.

The relationship between the induced magnetic flux density (B) and the magnetizing force is depicted by a hysteresis loop.

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The internal pressure of the gas will increase by a factor of three if the volume of the gas inside the container is reduced by three times at a constant temperature.

According to Boyle's Law, which states that at a constant temperature, the pressure and volume of a gas are inversely proportional, the pressure of the gas will increase by a factor of three if the volume is reduced by three times. This means that the internal pressure of the gas inside the container will increase.

Mathematically, the relationship between pressure (P) and volume (V) of a gas is expressed as P₁V₁ = P₂V₂, where P₁and V₁ are the initial pressure and volume, respectively, and P₂ and V₂ are the final pressure and volume, respectively. If the volume (V₂) is reduced by three times, then V₂ = (1/3)V1. Substituting this value in the equation above, we get:

P₁V₁ = P₂(1/3)V1

Simplifying, we get:

P₂ = 3P1

This means that the pressure of the gas will increase by a factor of three. Therefore, if the volume of a gas inside a container is reduced by three times at a constant temperature, the internal pressure of the gas will increase by a factor of three.

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