the shaded area shown in (figure 1) is bounded by the line y=xm and the curve y2=2.3xm2, where x is in m. suppose that a = 2.3 m .

In general, comets are often discovered by amateur or professional astronomers using telescopes or other observation equipment. The type of telescope used can vary depending on the observer's preference and the specific requirements of the observation.

When a comet is first discovered, astronomers typically describe its position, brightness, and any visible features such as a tail or coma. They may also use spectroscopy to analyze the composition of the comet's gases and dust.

Astronomers may have various expectations about what they might see when a comet impacts a planet or other object. Prior to the impacts, some astronomers may have predicted a large explosion or other dramatic effects. However, the actual outcome can be difficult to predict and may depend on many factors such as the comet's size, speed, and angle of impact.

As for lessons for us on Earth, the study of comets can help us understand the history and evolution of our solar system. It can also provide insights into the formation of planets and the origins of life on Earth. Additionally, the study of impacts can help us prepare for potential hazards such as asteroid or comet impacts on Earth.

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The question is fishing for "balanced force".

But the description in the question is terrible.

Answer:

100 m/s²

Explanation:

50 N / 500 g = 50 N / 0.500 kg = 100 m/s²

A brighter light source will result in a larger voltage drop across the resistor in a circuit with a phototransistor because the increased current flowing through the circuit causes a larger voltage drop according to Ohm's law.

If there is a single resistor in series with a phototransistor, a brighter light source would result in a larger voltage drop across the resistor.

The reason for this is that when the phototransistor is exposed to a brighter light source, more current will flow through the circuit because the phototransistor allows more current to pass through in the presence of a brighter light.

This increased current will cause a larger voltage drop across the resistor because the voltage drop across a resistor is directly proportional to the current flowing through it according to Ohm's law.

Ohm's law states that the voltage drop (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R) of the resistor:

V = IR.

Therefore, if the current through the circuit increases due to the brighter light source, the voltage drop across the resistor will also increase because the resistance of the resistor remains constant.

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The flux of light from an isotropic source depend on the distance r from the source by  r-2.

What is isotropic source?

An isotropic source is a source of radiation or sound that emits energy in all directions equally. This type of source is usually assumed to have uniform power density in all directions, making it a simplifying assumption when analyzing a system. Examples include a point source in free space, such as a light bulb, or a sound source in a room.

The flux of light from an isotropic source (a source that radiates uniformly in all directions) decreases as the inverse square of the distance from the source. This means that the flux of light from the source decreases according to the equation F = 1/r2, where F is the flux of light, and r is the distance from the source. Therefore, the flux of light from an isotropic source decreases with the distance r from the source according to the equation F = r-2.

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Answer:  15.9 m/s

Explanation:

KE = 1/2(mv^2)

190,000J = 1/2(3000kg)*v^2

1 J = 1 kg*m^2/s^2

190,000 kg*m^2/s^2 = 1/2(3000kg)*v^2

v^2 = (190,000 kg*m^2/s^2)/(1/2(3000kg))

v^2 = (190,000 kg*m^2/s^2)/(1500kg))

v^2 = 126.6667 m^2/s^2

v = 11.25 mm/s velocity of 3000kg vehicle

With the same kinetic energy, a vehicle of 1500kg would have a different velocity:

190,000 kg*m^2/s^2 = 1/2(1500kg)*v^2

190,000 kg*m^2/s^2 =(750kg)*v^2

v^2 = 253.33 m^2/s^2

v = 15.9 m/s

Answer:

3: I can´t see the text/image, but it depend on the mass and the force applied to the ball, if both are too high, it will be harder to make a home run. (Second law)

4:It would be easier to make a home run because there is no interruption between the ball and the space the same travels. (Third law)

Explanation:

Spring tides are extremely wide ranges of tidal highs and lows that occur during full moon or new moon phases when the gravitational forces of the Sun and Moon are at their strongest.

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Answer:

its c. 9km

Explanation:

Because it you add the 4km+5km that gives you a total of 9km

A. The deodorant evaporates as it absorbs thermal energy from James’s skin

Conduction heat transfer is the transfer of heat by means of molecular excitement within a material without bulk motion of the mater.

Heat transfer process that takes place when the liquid deodorant is sprayed.

When James sprayed liquid deodorant under his arm, the deodorant evaporates as it absorbs thermal energy from James’s skin. This process caused the spot the feel cold.

Thus, the sentence that best explain the process is "The deodorant evaporates as it absorbs thermal energy from James’s skin".

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A force of 40. 0 n accelerates a 5. 0-kg block at 6. 0 m/s2 along a horizontal surface. The value of the net force acting on the block will be  79N.

The combination of mass and acceleration is known as force, and it acts on the body to cause it to move. Since the block is being affected by an external force, there will be a frictional force that prevents the block from moving. The frictional force is given by and can be represented by the symbol f(k).

f(k) = external force - (ma)

f(k) = 40N - (5×6)

f(k) = 40N - 30N

Since it opposes the external force, f(k) = 10N, and since the sign is negative, f(k) = -10N.

In addition, the body is subject to a gravitational force that is equal to mg, where g is the acceleration caused by gravity.

Now, force of gravity = mg

= 5×9.8 = 49N

Now, net force acting on the block = 40N - 10N + 49N= 79N.

Your question is incomplete but most probably your full question was

A force of 40.0 N accelerates a 5.0-kg block at 6.0 m/s2 along a horizontal surface. what is the net force acting on the block

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Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

The work performed by a force of one newton acting through one meter is equivalent to one joule, a unit of work or energy in the International System of Units (SI). James Prescott Joule, an English physicist, inspired the name.

The fundamental SI unit of energy is called a joule, or J. One joule is equal to one kgm²/s², or the kinetic energy of a kilograms mass travelling at one meter per second. As an alternative, it is the amount of work that is performed on an object when a force of one newton operates over a distance of one meter in the direction of the object's motion (1 joule equals 1 newton meter or Nm). The system bears James Prescott Joule's name. Because it is a person's name, the symbol's first letter is capitalised (J instead of j). The term is, however, written in lowercase when it is written out.

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Under the assumption of a single point charge of +1.0 C located at the origin, the magnitude of the electric field at point P on the positive x-axis at x = 40.0 cm is approximately 56.25 × 10^9 N/C.

To determine the magnitude of the electric field at point P on the positive x-axis, we need additional information such as the configuration of charges or the distribution of the electric field sources.

Without that information, it is not possible to provide a specific value for the electric field magnitude at point P.

However, if we assume a simple scenario where there is a point charge located at the origin (x = 0) and no other charges or sources nearby, we can use Coulomb's law to calculate the electric field magnitude at point P.

Coulomb's law states that the electric field magnitude created by a point charge is given by:

E = k * (Q / r^2)

Where:

- E is the electric field magnitude.

- k is Coulomb's constant, approximately equal to 9 × 10^9 N m²/C².

- Q is the charge of the point charge.

- r is the distance between the point charge and the point where the electric field is being measured.

Let's assume a point charge Q = +1.0 C at the origin (x = 0) and calculate the electric field magnitude at point P, located at x = 40.0 cm (0.40 m):

r = 0.40 m

Q = +1.0 C

k = 9 × 10^9 N m²/C²

Plugging these values into the equation, we have:

E = (9 × 10^9 N m²/C²) * (1.0 C) / (0.40 m)^2

Simplifying further:

E = (9 × 10^9 N m²/C²) * (1.0 C) / (0.16 m²)

E = 56.25 × 10^9 N/C

Therefore, under the assumption of a single point charge of +1.0 C located at the origin, the magnitude of the electric field at point P on the positive x-axis at x = 40.0 cm is approximately 56.25 × 10^9 N/C.

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Answer:

In a position-time graph, the velocity of the moving object is represented by the slope, or steepness, of the graph line. If the graph line is horizontal, like the line after time = 5 seconds in Graph 2 in the Figure below, then the slope is zero and so is the velocity. The position of the object is not changing.

Explanation:

hop it helps

The ostrich's average speed during the 3.0 km run is approximately 38.65 km/h.

The average speed of the ostrich during the entire 3.0 km run, we need to calculate  the total time taken for both segments and then divide the total distance by the total time.

Calculate the time for each segment:

Time taken for the first 1.5 km segment at 58 km/h:

Time = Distance / Speed

= 1.5 km / 58 km/h

≈ 0.02586 hours

Time taken for the second 1.5 km segment at 29 km/h:

Time = Distance / Speed

= 1.5 km / 29 km/h

≈ 0.05172 hours

Calculate the total time:

Total Time = Time for the first segment + Time for the second segment

Total Time ≈ 0.02586 hours + 0.05172 hours

≈ 0.07758 hours

Calculate the average speed:

Average Speed = Total Distance / Total Time

Average Speed = 3.0 km / 0.07758 hours

≈ 38.65 km/h

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1) The x-component of the average velocity of the car is -3.0 m/s

2) The y-component of the average velocity of the car is 4.0 m/s

3) The magnitude of the average velocity is 5.0 m/s

4) The direction of the average velocity is 126.9 degrees

(a) The components of the average velocity of the car are:

Average velocity in x-direction = (change in x-coordinate) / (time interval) = (7.0 m - 4.0 m) / (3.1 s - 2.0 s) = 3.0 m/s

Average velocity in y-direction = (change in y-coordinate) / (time interval) = (6.0 m - 2.0 m) / (3.1 s - 2.0 s) = 4.0 m/s

(b) The magnitude and direction of the average velocity can be found using the Pythagorean theorem and trigonometry. The magnitude is:

|average velocity| = sqrt((average velocity in x-direction)^2 + (average velocity in y-direction)^2)

= sqrt((3.0 m/s)^2 + (4.0 m/s)^2)

= 5.0 m/s

The direction of the average velocity is:

theta = arctan(average velocity in y-direction / average velocity in x-direction)

= arctan(4.0 m/s / 3.0 m/s)

= 53.1 degrees (measured counterclockwise from the positive x-axis)

So the magnitude of the average velocity is 5.0 m/s, and its direction is 53.1 degrees counterclockwise from the positive x-axis.

When the car retraces its path in the opposite direction in the same time, the change in the x-coordinate is negative. Therefore, the x-component of the average velocity is:

Average velocity in x-direction = (change in x-coordinate) / (time interval) = (4.0 m - 7.0 m) / (3.1 s - 2.0 s) = -3.0 m/s

The y-component of the average velocity does not change when the car retraces its path, so it is still 4.0 m/s.

The magnitude of the average velocity is still 5.0 m/s, because it depends only on the change in the x-coordinate and y-coordinate, which are the same regardless of the direction of motion.

The direction of the average velocity is now 126.9 degrees counterclockwise from the positive x-axis, because the car is moving in the opposite direction along the same line.

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_______________

\(I_2=2I_1\)

\(L=\text{const}\)

_______________

\(\displaystyle \frac{W_2}{W_1}\; - \;?\)

_______________

\(\displaystyle \boldsymbol{\frac{W_2}{W_1}}=\frac{\dfrac{LI_2^2}{2} }{\dfrac{LI_1^2}{2} } =\frac{I_2^2}{I_1^2} =\bigg(\frac{I_2}{I_1} \bigg)^2=\bigg(\frac{2I_1}{I_1} \bigg)^2=2^2=\boldsymbol{4}\)

Osmotic pressure at 20°c. the density of a 3.5% nacl solution at 20°c is 1.023 g/ml is 29 atm. So, correct option is D.

Osmotic pressure is the pressure required to stop the flow of a solvent into a solution through a semipermeable membrane. It is a measure of the concentration difference between two solutions separated by a semipermeable membrane. The semipermeable membrane allows the solvent molecules to pass through, but not the solute molecules.

Osmotic pressure arises due to the difference in the number of solvent molecules on either side of the membrane. On the side of the membrane where the concentration of the solute is higher, there will be a higher number of solute particles, which will attract more solvent molecules to that side. This results in a net flow of solvent molecules from the side with lower concentration to the side with higher concentration, a process known as osmosis. The osmotic pressure is the pressure required to stop this flow and maintain an equal concentration of solvent on both sides of the membrane.

The osmotic pressure, π, of a solution can be calculated using the formula:

π = (nRT) / V

where n is the number of moles of solute, R is the ideal gas constant (0.0821 L-atm/mol-K), T is the temperature in Kelvin (293 K), and V is the volume of the solution.

Given that the solution is 3.5% NaCl by mass, we can find the number of moles by dividing the mass of NaCl by its molecular weight (58.44 g/mol). Then, using the density of the solution (1.023 g/mL), we can find the volume of the solution.

First, let's calculate the mass of NaCl in 100 mL of the solution:

Mass of NaCl = (3.5/100) * 100 mL = 3.5 g

Number of moles of NaCl = Mass of NaCl / Molecular weight of NaCl = 3.5 g / 58.44 g/mol = 0.06 mol

Volume of solution = 100 mL = 0.1 L

Finally, we can calculate the osmotic pressure:

π = (0.06 mol * 0.0821 L-atm/mol-K * 293 K) / 0.1 L = 29.25 atm

Therefore, the answer is D. 29 atm.

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The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

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Answer:

  85.2 N

Explanation:

You want to know your weight if the Earth were 3 times as massive and had 5 times the present radius. Your weight is 710 N.

Your weight is proportional to the mass of the Earth and the square of the radius between your mass and the center of the Earth. The revised dimensions of the earth would multiply your weight by ...

  W = k(M/r²) = 710 N

  W' = k((3M)/(5r)²) = k(M/r²)(3/25) = (710 N)(3/25) = 82.5 N

Your weight would be 82.5 N.

Answer:

Animals cerate Carbon Dioxide through the process of respiration.

All animals exhale carbon dioxide out through respiration and increase the level of carbon dioxide in the atmosphere and this is intaken by the plants for photosynthesis.

Carbon cycle is the geological  process that balance the amount of carbon dioxide in the atmosphere and biosphere. Carbon dioxide is an essential gas that maintains the living condition on earth.

All animals inhales oxygen and exhales carbon dioxide out. This carbon dioxide is used by plants to carry photosynthesis in plants. Plants absorb this carbon dioxide and combine with water forming oxygen gas and glucose.

This process repeats cyclically and the level of oxygen and carbon in the atmosphere gets balanced. Therefore, animals have a significant role in carbon dioxide cycle and oxygen cycle.

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Answer:

-10 m/s²

Explanation:

a = Δv / Δt

a = (20 m/s − 50 m/s) / 3 s

a = -10 m/s²

Answer 10 m/s²

Explanation:

a = Δv / Δt

a = (20 m/s − 50 m/s) / 3 s

a = -10 m/s²

Explanation:

Recycling helps the environment in a number of ways. Firstly, it reduces the amount of waste that ends up in landfills, which not only takes up valuable space but also creates harmful greenhouse gases.

By recycling materials such as paper, plastic, and glass, we can reduce the need for new resources to be extracted and manufactured, which in turn reduces the amount of energy and emissions associated with these processes. Recycling also helps to conserve natural resources, as materials such as metals and paper can be reused over and over again. Overall, recycling is a crucial step in reducing our impact on the environment and creating a more sustainable future.

we decrease the demand for new resources, preserve natural habitats, and minimize pollution. Additionally, recycling conserves energy as it requires less energy to process recycled materials compared to extracting and processing raw materials. Overall, recycling plays a significant role in maintaining a sustainable and healthy environment.

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The wavelength of the laser beam in the unknown liquid is 474 nm.

Determine the wavelength of the laser beam in the unknown liquid, we can use the formula:

v = λ * f

where v is the speed of light in a medium, λ is the wavelength of light in that medium, and f is the frequency of light.

The speed of light in a vacuum is a constant, approximately 3.00 x \(10^8\)m/s.

The wavelength of the laser beam in air is 633 nm (or 633 x \(10^{(-9)\)m) and the time it takes for the light to travel through 26.0 cm of the unknown liquid is 1.42 ns (or 1.42 x \(10^{(-9)\) s).

We can calculate the speed of light in the unknown liquid:

\(v_{liquid\) = distance / time

= 0.26 m / (1.42 x \(10^{(-9)\) s)

≈ 183.099 x \(10^6\) m/s

We can find the wavelength of the laser beam in the liquid using the speed of light in the liquid and the frequency:

\(v_{liquid} = \lambda _{liquid} * f \\\lambda _{liquid} = v_{liquid} / f\)

Since the frequency remains the same as the laser beam passes through different media, we can use the speed of light in a vacuum to calculate the wavelength in the liquid:

λ_liquid = (3.00 x \(10^8\) m/s) / f

We can substitute the wavelength in air and solve for the wavelength in the liquid:

λ_liquid = (3.00 x\(10^8\) m/s) / (633 x \(10^{(-9)\) m)

≈ 473.932 x \(10^{(-9)\) m

≈ 474 nm

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Answer:

I think d or b maybe it's d

Answer:OPEW

Explanation:

I hope this helps

Answer:

7500 m/s

Explanation:

We can use the equation velocity of a wave equals wavelength times  frequency.  Therefore, v = wavelength*f = (25 m)(300 Hz) =  m/s7,500