HELP NOW PLEASE ANSWER THE QUESTION THE PICTURE IS ATTACHED BELOW

Answer:

I gonna give you the number so but you need to round 6.19047619048

Explanation:

Despite the fact that the moon is slightly larger than Pluto, the two bodies are vastly different, and their unique characteristics make them both interesting objects of study for astronomers and space scientists.

Yes, the way things work on Earth's moon would be different from the way they work on Pluto, despite the fact that Earth's moon is slightly larger than Pluto's. This is because the characteristics of a celestial body depend on various factors such as its size, mass, density, and distance from the sun.

One major difference between the two is the gravitational force. The gravitational force on the moon is about one-sixth of that on Earth, while on Pluto, it is about one-fifteenth of that on Earth. This means that objects on the surface of the moon would weigh less than those on Pluto, and they would also fall more slowly.

Another significant difference is the surface conditions. The moon has a relatively smooth surface with little atmosphere and extreme temperature variations, while Pluto has a much more rugged terrain, a thin atmosphere, and a much colder surface with temperatures reaching -240°C.

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la característica de los elementos

Answer:

 In places of hot climate, it is advised that the outer walls of house be painted white because white color does not absorb any heat radiation from the sun which keep inside cool even if there is hot climate outside the house.

We are unable to directly determine the work performed by the engine because the distance over which the force acts is unknown.

This indicates that the effort expended to increase the car's speed will be equivalent to the change in kinetic energy of the vehicle. Thus, 30 kJ of effort must be performed.

The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea.

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To find the acceleration of the block, we'll use Newton's second law of motion, which states that the net force acting on an object is equal to its mass times its acceleration (F = m * a).

Given:
Force (F) = 10.0 N
Mass (m) = 5.0 kg

We need to find the acceleration (a) of the block. Since there are no opposing forces, the net force is equal to the force you are applying (10.0 N).

Using the formula F = m * a, we can solve for the acceleration:

10.0 N = 5.0 kg * a

Now, divide both sides by the mass (5.0 kg) to isolate the acceleration:

a = (10.0 N) / (5.0 kg)

a = 2.0 m/s²

So, the 5.0-kg block will accelerate at a rate of 2.0 m/s² when you apply a 10.0 N force without any opposing forces.

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According to the law of conservation of momentum, the total momentum before the collision is equal to the total momentum after the collision.

Let's assume the mass of the receiver is denoted as "m" (in kg).

Before the collision:

Momentum of the tackler (p1) = mass of the tackler (m1) * velocity of the tackler (v1)

Momentum of the receiver (p2) = mass of the receiver (m) * velocity of the receiver (0, as the receiver is standing still)

After the collision:

Total momentum = momentum of the tackler + momentum of the receiver

The total momentum after the collision is:

Total momentum = (mass of the tackler + mass of the receiver) * velocity after the collision (3 m/s)

Since momentum is conserved, we can equate the total momentum before and after the collision:

p1 + p2 = (m1 * v1) + (m * 0) = (m1 * v1) = (m1 + m) * 3

Simplifying the equation, we get:

m1 * v1 = m1 * 3 + m * 3

m1 * v1 = 3 * (m1 + m)

Now we can substitute the given values into the equation. Given:

m1 = 100 kg

v1 = 4.0 m/s

Substituting the values, we have:

100 * 4.0 = 3 * (100 + m)

Simplifying the equation:

400 = 300 + 3m

3m = 100

m = 100 / 3 ≈ 33.33 kg

Therefore, the mass of the receiver is approximately 33.33 kg.

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The angle at which a ray of light strikes a pane of window glass is smaller than the angle at which it passes out the other side.

When light go through window glass it will experience refraction due to change of light speed. The relation between angle of incidence and angle of refraction is given by the Snell's law:

n₁ sin∅₁ =  n₂ sin∅₂

Where:

n₁ = incident index (refractive index of medium 1)

n₂ = refraction index ((refractive index of medium 2)

∅₁ = incident angle

∅₂ = refraction angle

Typical refractive index for glass is around 1.5 while refractive index for air is 1.000273.

In the given case, the ray of light is from the window glass and pass out the other side. Hence,

n₂ = air

n₁ = glass

Since  n₁ > n₂ , the velocity in the air is greater than the velocity in the window glass. Hence, ∅₁ < ∅₂  or the incident angle is smaller than the refracted angle.

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Take the starting position of the ball 1.5 m above the floor to be the origin. Then at time t, the ball's horizontal and vertical positions from the origin are

x = v₀ t

y = -1/2 gt²

where v₀ is the initial speed with which it rolls off the edge and g = 9.8 m/s².

A. The floor is 1.5 m below the origin, so we solve for t when y = -1.5 m :

-1.5 m = -1/2 gt²

⇒   t² = (3.0 m)/g

⇒   t = √((3.0 m)/g) ≈ 0.55 s

B. It would take the same amount of time.

C. The ball travels a horizontal distance of 0.70 m before reaching the floor, so we solve for v₀ with t = 0.55 s :

0.70 m = v₀ (0.55 s)

⇒   v₀ = (0.70 m) / (0.55 s) ≈ 1.3 m/s

D. At time t, the ball has horizontal and vertical velocity components

v[x] = 1.3 m/s

v[y] = -gt

so the horizontal component of the ball's final velocity vector is the same as the initial one, 1.3 m/s.

E. The vertical component of velocity would be

v[y] = -g (0.55 s) ≈ -5.4 m/s

F. The magnitude of the final velocity would be

√((1.3 m/s)² + (-5.4 m/s)²) ≈ 5.6 m/s

G. The final velocity vector makes an angle θ with the horizontal such that

tan(θ) = (-5.4 m/s) / (1.3 m/s)

⇒   θ = arctan(-5.4/1.3) ≈ -77°

i.e. approximately 77° below the horizontal.

Answer:

Bones make sure the arms structure is stable while the muscle is the one actively moving it and carrying out actions.

I think tomato is acid

Answer:

acid

Explanation:

tomatoes contain acids such as citric acid, ascorbic acid, abscisic acid etc.

this indicates that they are  acidic

The time taken by a 2.9cm diameter water hose to fill the 600-liter pool is 4.58 minutes.

The diameter of the hose, d =2.9 cm. Velocity, v=3.3 m/s= 330 cm/s. The amount of water following through the cross-sectional area of the hose = πr². Diameter = 2.9 cm so radius, r=1.45 cm. A= 3.14×2.10 = 6.601 cm². The cross-sectional area of the hose is approximately 6.601 cm². To the volume of water that flows through the hose each second, multiply its velocity by the cross-sectional area of the hose. Volume/ second = 330×6.601=2178.61 cm³/sec . There are 1000 cm³ in one liter.  Total volume =600×1000 =600000 cm³. To determine the time in seconds, divide the total volume by the volume per second, t = 600000/2178.61 =275.40 sec. This is roughly 275 seconds.  Now convert 275 seconds into minutes, t (mins) = 275/60 =4.58 minutes.

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To calculate the required speed at which the student must throw the balloon to hit the physics instructor, we can use the concept of relative motion.

The physics instructor is running away from the student at a speed of 7.80 m/s. Therefore, to hit the instructor, the student must throw the water balloon with a velocity that cancels out the instructor's velocity and covers the distance of 10.0 m.

Since the distance and time are provided, we can use the formula:

Velocity = Distance / Time

Velocity = 10.0 m / 30.0 s = 0.333 m/s

To hit the instructor, the student must throw the water balloon with a velocity of 0.333 m/s.

Note: It's important to note that this calculation assumes ideal conditions and neglects factors such as air resistance and the exact trajectory of the balloon.

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Answer:

Okay I might be wrong and sorry if i am either its 12 or 0.402

Explanation:

* I recommend the second one cause its more logical

Be aware I might be wrong

The speed of the water coming out of the pipe can be determined using the principles of projectile motion. The speed of the water is approximately 6.67 m/s.

To calculate the speed of the water coming out of the pipe, we can analyze the horizontal and vertical components of the motion separately. Since the garden boy is holding the pipe horizontally, the vertical component of the initial velocity is zero.

Considering the horizontal motion, the horizontal distance from the pipe to the flowers is 3 meters. Assuming no air resistance, the horizontal velocity remains constant throughout the motion. Therefore, the speed of the water equals the horizontal velocity.

To determine the horizontal velocity, we can use the equation of motion s = ut + 0.5at^2, where s is the horizontal distance (3 meters), u is the initial horizontal velocity, t is the time, and a is the horizontal acceleration (zero in this case).

Since the initial horizontal velocity (u) is equal to the speed of the water, we need to solve the equation for time (t) when the water reaches the flowers. The time can be calculated using the equation t = s/u.

Plugging in the values, we have t = 3 meters / u. Given that the vertical distance is 1 meter, the time taken for the water to reach the ground is the same as the time taken for it to reach the flowers.

Considering the vertical motion, we can use the equation s = ut + 0.5gt^2, where s is the vertical distance (1 meter), u is the initial vertical velocity (zero in this case), t is the time, and g is the acceleration due to gravity (approximately 9.8 m/s^2).

Plugging in the values, we have 1 meter = 0.5 × 9.8 m/s^2 × t^2. Solving for t, we find t ≈ 0.45 seconds.

Using the time calculated, we can substitute it into the equation t = 3 meters / u to solve for the speed of the water (u). Rearranging the equation, we have u ≈ 3 meters / t ≈ 3 meters / 0.45 seconds ≈ 6.67 m/s.

Therefore, the speed of the water coming out of the pipe is approximately 6.67 m/s.

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Answer:

5 N

Explanation:

Given that,

A large bar magnet of mass 0.4 kg exerts a 5 N force on a small bar magnet (mass of 0.1 kg) located 20 cm away.

We need to find the force exerted by the small bar magnet on the large one.

We know that, every action has an equal and opposite reaction. Both action and reaction occur in pairs. The force acting on one object to another is same and in opposite direction on the other object.

Hence, the force exerted by the small bar magnet on the large one is also 5 N.

The Goldilocks zone is a range of distance from a star where temperatures are right for liquid water to exist (option B).

The Goldilocks zone is a zone around a star where a planet could experience temperatures like those on Earth, allowing for the possible existence of liquid water and of life.

The Goldilocks Zone also called habitable zone refers to that range of distance with the right temperatures for water to remain liquid.

Only one planet so far is known to be habitable for life and that planet is Earth. On Earth, water is a critical ingredient for life.

If a planet’s orbit takes it too close to its parent star, then it will be too hot for liquid water to exist, and if it’s too far out it will be too cold. However, the actual distances involved, that define habitable or Goldilocks zone vary between stars.

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Answer:

the correct answer is Jupiter has moons orbiting it

If a current is in a loop of wire and also in a magnetic field, the loop wants to rotate.

This phenomenon is known as the principle of operation of a DC motor. The current-carrying loop placed in a magnetic field experiences torque, and this torque will cause the loop to rotate.

A DC motor is a type of electric motor that converts electrical energy into mechanical energy. It works on the principle that a current-carrying conductor in a magnetic field experiences a force that causes it to rotate. It consists of a stator, which generates a magnetic field, and a rotor, which carries the current and rotates.

The commutator is a device that allows the current to flow in the correct direction through the rotor windings. As the rotor rotates, the brushes on the commutator change the direction of the current flow, allowing the rotor to continue to rotate.

The speed of the DC motor can be controlled by varying the applied voltage or the strength of the magnetic field. The direction of rotation can be reversed by reversing the polarity of the applied voltage or by changing the polarity of the magnetic field.

DC motors are used in a variety of applications, including electric vehicles, robotics, and industrial machinery.

In summary, when a current-carrying loop is placed in a magnetic field, it experiences a torque that causes it to rotate. This principle is the basis for the operation of a DC motor.

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The volume of helium that the balloon can hold is 0.00182 L or 1.82 ml

The volume of helium inside a balloon can be determined by the initial volume of the tank, the pressure of the tank, the pressure of the balloon, and the final volume of the balloon. If the initial pressure of the helium tank is Po and the volume is Vo, the amount of helium in the tank is given by n = \frac{(Po)(Vo)}{(RT)}, where R is the ideal gas constant and T is the absolute temperature. To determine the volume of helium inside a balloon, the amount of helium in the tank must be equal to the amount of helium in the balloon. At constant temperature, the relationship between pressure and volume is given by the ideal gas law PV = nRT. Solving for the final volume of the balloon,

Vf = \frac{(Pf)(Vo)(RT)}{[(Po)(T)]}

Vf =\frac{ (1.19 atm)(0.31 L)(0.0821 L.atm/mol.K)(298 K)}{[(190 atm)(298 K)}]

Vf = 0.00182 L

Hence,The volume of helium that the balloon can hold is 0.00182 L or 1.82 ml.

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0.00025 N is the magnitude of the net force on the first wire in (figure 1).

The total of all forces exerted on an item is known as the net force. A mass can accelerate due to net force. A body is subject to another force whether it is at rest or in motion. When there are a lot of forces acting on a system, the phrase "net force" is employed.

From the diagram, first wire has an attracting force from third wire at 0.04 m distance and a repelling force from second wire at 0.02 m distance.

Expression of the force is -

F = [µ ×π×(I)² × L] / (2πd)

When d = 0.02 m,

or, F = [4 ×π× 10⁻⁷(10)² × 0.50] / (2π × 0.02)

or, F = 0.0005 N

And when d = 0.04 m,

or, F = [4 ×π× 10⁻⁷(10)² × 0.50] / (2π × 0.04)

or, F =  0.00025 N

So, the net force on first wire  = 0.005 - 0.00025

= 0.00025 N repelling or upward.

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The complete question is as follows:

What is the magnitude of the net force on the first wire in (Figure 1)?

Express your answer in newtons.

If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is 20.8 hours.

option D is the correct answer.

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is calculated as follows;

1,000 ---------- 0 time

500 ----------- 10.4 hours

125 ------------- 20.8 hours

Thus, from the calculation done above, we can see that If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is 20.8 hours.

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According to the illustration, the graphic illustrates the arrow and the intended target.

To target something or someone means to aim at them specifically. To aim a gun at a shooting range is an example of a target. To focus all of your efforts on one objective is an example of a target. verb. A target is an item or objective that is the subject of an aim.

Two or three arrows have been depicted in the green area of the image, which is located very distant from the red location. Given that they are all in the same location, this illustrates the idea of weak or low precision and excessive precession.

As a result, choice B is accurate.

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The time required for the bacteria concentration to be reduced to 15ppm using the Newton's method is 8.12 hours.

Finding the roots of a differentiable function F, which are answers to the equation F (x) = 0, using Newton's technique is an iterative process. To solve this problem, we can use Newton’s method with an initial guess of t=6 and a stopping criterion of 1% (tol=0.01). The formula for Newton’s method is:

xₙ₊₁ = xₙ - f(xₙ)/f'(xₙ)

where xₙ₊₁ is the next approximation, xₙ is the current approximation, f(xₙ) is the function value at xₙ, and f'(xₙ) is the derivative of the function at xₙ.

For this problem, we have:

f(t) = 77 \(e^{-1.5 t}\) +20 \(e^{-0.08 t}\) - 15

f’(t) = -115.5 \(e^{-1.5 t}\) - 1.6 \(e^{-0.08 t}\)

After using the Newton’s method with an initial guess of t=6 and a stopping criterion of 1% (tol=0.01), the results are as follows:

t = 4.139 hours

You can check your result with fsolve function in Python’s scioy library.

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Answer:

i think it might be 5

sry if im wrong

Hi! I understand you have two questions related to light entering a glass with an index of refraction 1.5. Let's address them one by one. The wavelength of the red light in the glass is approximately 467 nm to three significant figures. The angle of reflection (theta_1) is 32.0 degrees to three significant figures.


1) You want to find the wavelength (lambda) of red light with a wavelength of 700 nm in air, when it enters glass with an index of refraction 1.5.

To find the wavelength of light in the glass, use the formula:

λ_glass = λ_air / n

where λ_glass is the wavelength in the glass, λ_air is the wavelength in air (700 nm), and n is the index of refraction (1.5).

λ_glass = 700 nm / 1.5

λ_glass ≈ 466.7 nm

So, the wavelength of the red light in the glass is approximately 467 nm to three significant figures.

2) You want to find the angle of reflection (theta_1) when the light strikes the air-glass interface at an angle of 32.0 degrees to the normal.

The law of reflection states:

theta_a = theta_r

where theta_a is the angle of incidence (32.0 degrees) and theta_r is the angle of reflection.

Since the angles are equal according to the law of reflection:

theta_1 = theta_a = 32.0 degrees

So, the angle of reflection (theta_1) is 32.0 degrees to three significant figures.

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Answer:

Mandaloun won the race.

Explanation:

First, we will calculate the time taken by the Hot Rod Charlie:

\(s = vt\\t = \frac{s}{v}\)

where,

t = time taken by Hot Rod Charlie = ?

s = distance covered = 1.25 miles

v = speed of Hot Rod Charlie = 0.79 miles/min

Therefore,

\(t = \frac{1.25\ miles}{0.79\ miles/min} \\t = 1.58 min\)

Since Hot Rod Charlie took more time (1.58 min) than the Mandaloun (1.52 min).

Therefore Mandaloun won the race.

In the described experiment, the independent variable would be the amount of alcohol consumed. The researchers manipulated this variable by varying the amounts of alcohol consumed by the subjects.

The other answer choices mentioned are not independent variables in this context:

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