Suppose you pour water into a container until it reaches a depth of 18 cm. Next, you carefully pour in a 8.2 cm thickness of olive oil so that it floats on top of the water. What is the pressure at the bottom of the container?

The range of the shots(projectiles) will be around 131.65 meters when the point of the cannon is set to 20 degrees above level. 

To decide the run of the shots, we have to calculate the horizontal distance that the shots will travel.

Ready to utilize the taking after kinematic condition to fathom for the run:

\(R = (v^2/g) * sin(2θ)\)

Where:

R = run

v = starting speed (25 m/s)

g = increasing speed due to gravity (9.81 m/s²)

θ = point of the cannon (20 degrees)

Substituting the given values into the condition, we get:

\(R = (25^2/9.81) * sin(2*20)\)

R = 131.65 meters

In this manner, the run of the shots will be around 131.65 meters. 

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Answer:

A

Explanation:

Trial and error is basically trying something, if it works, great. If it does not work, try another way.

Answer:

A. Trial and error

Explanation:

The other user is correct.

Answer:

D

Explanation:

im guessing here i hope it is correct and good luck

Answer:

Explanation:

The initial vertical velocity is 540sin55° = 442.342103... 442 m/s

The initial horizontal velocity is 540cos55° = 309.731275... 310 m/s

In the real world, both initial velocities would be reduced by air resistance and vertical velocity will be altered by gravity.

The wavelength of the second laser is 0.170mm.

What is wavelength?
The distance over which a periodic wave's shape repeats is known as the wavelength in physics. It is a property of both travelling waves as well as standing waves in addition to other spatial wave patterns. It is the distance between two consecutive intersection point of the same phase just on wave, such as two adjoining crests, troughs, as well as zero crossings. The spatial frequency is the reciprocal of wavelength. The Greek letter lambda () is frequently used to represent wavelength. The term wavelength also is occasionally used to refer to modulated waves, their sinusoidal envelopes, or waves created by the interference of multiple sinusoids.

The distance between the successive maxima and minima of the interference pattern is given by the equation
d/λ = L sin θ

where θ is the angle between the slits and the screen. Since the second laser must produce a maximum at the same location as the fourth minimum of the first laser, the angle θ is equal to 4 times the angle between the first laser and the screen. Thus, the wavelength of the second laser is given by the equation

λ2 = (d/L) sin(4θ)
Substituting in the given values, we have
λ2 = (0.400mm/L) sin(4θ)
where θ is the angle between the first laser and the screen. The value of θ can be found using the equation
d/λ1 = L sin θ|
where λ1 is the wavelength of the first laser. Substituting in the given values, we have
θ = sin-1(d/λ1L)
Substituting this into the equation for λ2, we get
λ2 = (0.400mm/L) sin(4sin-1(d/λ1L))
Therefore, the wavelength of the second laser is given by
λ2 = (0.400mm/L) sin(4sin-1(d/0.400mm/8))
= 0.400mm sin(4sin-1(1/8))
= 0.400mm x 0.425
= 0.170mm
Therefore, the wavelength of the second laser is 0.170mm.

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To find the acceleration of the particle, we need to use the formula for centripetal acceleration:

a = (v^2) / r

where:

a is the acceleration,

v is the linear velocity of the particle, and

r is the radius of the circle.

To calculate the linear velocity, we can use the formula:

v = (2πr) / T

where:

v is the linear velocity,

r is the radius of the circle, and

T is the time period for one revolution.

Given:

Number of revolutions (n) = 800

Time (t) = 240 seconds

Radius (r) = 5 cm

First, let's calculate the time period for one revolution (T):

T = t / n

T = 240 seconds / 800

T = 0.3 seconds/revolution

Now, let's calculate the linear velocity (v):

v = (2πr) / T

v = (2 * 3.14 * 5 cm) / 0.3 seconds

v = 104.67 cm/second

Now we can calculate the acceleration (a):

a = (v^2) / r

a = (104.67 cm/second)^2 / 5 cm

a = 10974.44 cm^2/second^2

Therefore, the acceleration of the particle is 10974.44 cm^2/second^2.

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Answer:

Hello! Our answer is C: it shows negative acceleration :)

Explanation:

Small tip: Always draw a car when you are working with these type of questions. Now imagine: A car is moving in the positive way, goes smae speed for a bit, and slows down. Then it stops at 30 mins. Then it starts moving in the opposite direction. So, our answer is c :)

Good luck!

Answer:

175 ohm

Explanation:

i worked it on on a seprate sheet so its hard to explain

Answer:

a. 175

Explanation:

equation= R=V/I

R= resistance

V= voltage

I= current

so just substitute, R= 3.50/20.0

which is 0.175

all u need to do is 0.175 x 1000

which is 175

(the other person got it right i just wanted to show how it was done incase anyone wanted)

Answer:

carrying twice the weight and climbing twice as high

Explanation:

Answer:

c

Explanation:

The EMF of a cell represents its maximum potential difference, while the potential difference across the cell when passing a current through an external resistance is reduced due to the internal resistance of the cell.

The electromotive force (EMF) of a cell refers to the maximum potential difference that the cell can provide when it is not connected to any external circuit. It is essentially the voltage produced by the chemical reactions occurring within the cell. On the other hand, the potential difference across the cell when it is passing a current through an external resistance is often lower than the EMF.

This difference in values can be attributed to the internal resistance of the cell. When a current is drawn from the cell, it encounters resistance within the cell itself due to factors such as the resistance of the electrolyte and the internal structure of the cell. This internal resistance causes a voltage drop within the cell, reducing the potential difference across the external circuit.

According to Ohm's Law (V = I * R), when current flows through a resistance (R), a voltage drop (V) occurs. In this case, the internal resistance of the cell causes a voltage drop within the cell itself. Hence, the potential difference across the external resistance is slightly lower than the EMF of the cell.

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Answer: The decomposition of H₂O₂ is a first-order reaction. Then, the reaction rate will be 2 times the original rate, if we double its concentration value.

Explanation: To find the answer, we need to know about the decomposition of H₂O₂.

                              2H₂O₂→ 2 H₂O+ O₂

                              Rate = k [H₂O₂]1

              Rate = rate constant × concentration of [H₂O₂]

         rate constant=k and the concentration of [H₂O₂] = 1[H₂O₂].

                              Rate = 2k [H₂O₂].

Thus, we can conclude that the rate of reaction will be 2 times the initial rate if we double the concentration.

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If we double the concentration value, the reaction rate will be twice as fast as before.

In order to determine the solution, we must understand how H2O2 breaks down.

                        2H₂O₂→ 2 H₂O+ O₂

                      Rate = [H2O2] k

                   Rate = rate constant × [H2O2] concentration

                           Rate = [H2O2] 2k.

As a result, we can infer that doubling the concentration will cause the reaction rate to double.

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When a beam of 11 keV X-rays illuminates a sample, the angles that will produce diffraction maxima of the first, second, and third order can be calculated using Bragg's law, which states that nλ = 2d sin(θ), where n is the order of diffraction, λ is the wavelength of the X-rays, d is the spacing between crystal lattice planes, and θ is the angle of incidence.

Bragg's law can be used to calculate the angles for diffraction maxima. For the first-order maximum (n = 1), we have λ = 2d sin(θ₁). Rearranging the equation, we get sin(θ₁) = λ / (2d). Substituting the values, with λ representing the wavelength of 11 keV X-rays (which can be converted to the corresponding wavelength), and the known spacing between lattice planes, we can solve for θ₁.

For the second-order maximum (n = 2), the equation becomes λ = 2d sin(θ₂). Solving for sin(θ₂) and substituting the values, we can find θ₂.

Similarly, for the third-order maximum (n = 3), we use λ = 2d sin(θ₃) to determine sin(θ₃) and find θ₃ by substituting the values.

By calculating these angles using Bragg's law, we can determine the angles that will produce diffraction maxima of the first, second, and third order for the given beam of 11 keV X-rays illuminating the sample.

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Answer:

Explanation:

To get the magnitude of the force would require to just loosen the nut, if the force apply perpendicularly at the end of the handle, we will have to resolve the force perpendicular to the wrench. Torque is the turning effect of a body or force about a point. It is similar to moments.

Torque = Force * radius

Note that the force must be perpendicular to the wrench. On resolving the force perpendicularly to the wrench, we will have to resolve the force to the vertical.

Fy = Fsinθ

Fy = 10sin30°

Fy = 10 * 0.5

Fy = 5N

Torque = Fy * r

Given Fy = 5N and r = 20cm = 0.2m

Torque = 5 * 0.2

Torque = 1Nm

Hence the magnitude of the force would require to just loosen the nut, if the force apply perpendicularly at the end of the handle is 5N

Answer:

The zone of which g (gravity) decreases with depth below the Earth's surface is the mantle, which is the layer of Earth in between the crust and the core. The mantle makes up around 84% of the Earth's volume, and extends from around 5 km below the Earth's surface to a depth of 2900 km.

The mantle is composed of solid rock, with the outermost parts of it being composed of more dense, rigid rock. As we go deeper into the mantle, the rock becomes increasingly less dense. The decrease in density along with the increase in pressure creates a decrease in g-force with depth. The decrease in g-force has been measured to continue down to a depth of 2,900 km, at which point the g-force levels off.

Aerobic respiration is used by an organism because it needs to generate  energy and has availability of oxygen. Option D is correct.

Aerobic respiration is a cellular process that occurs in the presence of oxygen and involves the breakdown of glucose to produce ATP (adenosine triphosphate), which is the main energy currency of cells. Organisms carry out aerobic respiration to generate energy needed for various cellular functions such as growth, metabolism, movement, and reproduction.

Oxygen acts as the final electron acceptor in the electron transport chain of aerobic respiration, allowing for the efficient production of ATP through oxidative phosphorylation. If an organism has access to oxygen, it would preferentially use aerobic respiration to produce ATP because it is more efficient in generating energy compared to other forms of cellular respiration.

Hence, D. is the correct option.

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--The given question is incomplete, the complete question is

"Which statement best describes why an organism would carry out aerobic respiration? A) It needs to store sugars and is unable to process glucose. B) It needs to create glucose to be used for energy later. C) It needs to process carbon dioxide and does not have oxygen available. D) It needs to generate energy and has oxygen available."--

This double-dwell cam will move a follower from 0 to 2.5 in in 60 degrees, dwell for 120 degrees, fall 2.5 in in 30 degrees, and dwell for the remainder of the 4 second cycle, while minimizing accelerations.

Acceleration is the rate of change of velocity with respect to time. It is a vector quantity, meaning it has both magnitude and direction. Acceleration is the rate of change of velocity, or the rate at which an object's speed or direction is changing.

The cycloidal displacement function for this double-dwell cam is given by the following equation:
Position = A + B sin(θ) + C cos(θ) + D tan(θ)
Where A, B, C and D are constants determined by the desired motion profile.
For our double-dwell cam, the constants can be determined by solving the following four equations:
A = 0
B = 2.5 in/60°
C = 0
D = 0.6 in/s²
Therefore, the cycloidal displacement function for the double-dwell cam is given by:
Position = 2.5 in/60° sin(θ) + 0.6 in/s² tan(θ)
This double-dwell cam will move a follower from 0 to 2.5 in in 60 degrees, dwell for 120 degrees, fall 2.5 in in 30 degrees, and dwell for the remainder of the 4 second cycle, while minimizing accelerations.

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ANSWER:

(a) 108 J

(b) 0 J

(c) 108 J

STEP-BY-STEP EXPLANATION:

(a)

Express the relation between horizontal component of work done and force on the crate:

Here Wh is the horizontal component of the work done on the crate and Fh is the horizontal component of force and d is the distance of the crate across the floor.

Replacing:

(b)

Express the relation between vertical component of work done and force on the crate:

Here Wv is the vertical component of the work done on the crate and Fv is the vertical component of force and d is the distance of the crate across the floor.

Replacing:

(c)

Express the relation for total work done by the 45 N force:

Ridge push refers to the pressure exerted by the excess height of the mid-ocean ridge, while Slab pull refers to the force exerted by the weight of the subducted slab on the plate it is attached to.

The two forces that form mid-ocean ridges are ridge-push and slab pull.

Ridge push refers to the pressure exerted by the excess height of the mid-ocean ridge.

Slab pull refers to the force exerted by the weight of the subducted slab on the plate it is attached to.

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Answer:

It would lift the object to the same height than before you move it 3 centimeters to the left. You see, the height doesn't change if you move the inclined plane horizontally, because height is a vertical variable.

Therefore, if the inclined plane has a height of 1 meters, then the object will be lifted 1 meters up, no matter if you move the inclined plane 50 meters horizontally, it won't change its height.

Answer:

D. A followed by B

Explanation:

You can see at section A solid Ice at temperature 0°C gets heated up for and all the energy generated from heating up the ice is used to break the bonds which holds the ice together as a solid .

while at Section B the liquid water at 100°C changes to vapor because the heat energy applied here breaks intermolecular bonds c.

The section where A is followed by C of the heating curve illustrate this process. The correct option is D.

The heating curve represents the association between the supply temperature of the heating system and the external air temperature.

As can be seen in section A reliable Ice at 0°C is heated, and all of the energy generated by heating the ice is used to shatter the bonds that hold the ice together as a solid.

While in Section B, liquid water at 100°C transforms to vapor because the heat energy applied here shatters the intermolecular bonds c.

Thus, the correct option is D.

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Answer:

1. If you “feel the burn” while exercising, what is actually going on in your body?

= D. Lactic acid is taking the place of oxygen in the muscle.

2. Why does strenuous activity make the heart beat faster?

= C. The body requires more oxygen when exercising.

3. When lifting something heavy, which is the MOST important factor in doing it safely?

= C. your form when you are lifting.

4. Sasha does not have access to a gym or fitness equipment. Is it possible for him to develop a good fitness routine with what he has at home?

= D. Yes, there are cardio and strength training exercises he can do without equipment.

5. Aerobic exercise is good for many of the main systems of the body. Which of the following does it NOT help with?

= A. flexibility

Answer:

1). Average speed = 1.5 m per second

2). Average velocity = 1.5 m per second

Explanation:

1). Since, speed is a scalar quantity

   Therefore, average speed of the trip = \(\frac{\text{Total distance covered}}{\text{Total time taken}}\)

    From the graph attached,

   Total distance covered = 10 + 10 + 20 + 0 + 20 + 30

                                           = 90 meters

   Total time taken = 60 seconds

    Average speed = \(\frac{90}{60}\)

                               = 1.5 meter per second

2). Velocity is a vector quantity.

    Therefore, average velocity = \(\frac{\triangle d}{\triangle t}\)

                                                   = \(\frac{d_{60}-d_0}{60-0}\)

                                                   = \(\frac{90-0}{60-0}\)

                                                   = 1.5 meter per second                        

The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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The Bauhaus style prioritizes sculptural, individualistic, artistic, and fragmented furniture design over function and ergonomics.

The Bauhaus movement, founded in Germany in the early 20th century, sought to integrate art, craftsmanship, and technology in design.

While the Bauhaus style did value functionalism and efficiency, it also emphasized the artistic and expressive qualities of furniture.

In contrast to traditional furniture design, Bauhaus furniture often showcased sculptural forms, unique individualistic designs, and fragmented compositions.

The emphasis on artistic expression meant that furniture in the Bauhaus style might prioritize aesthetic impact over practicality or ergonomic considerations.

This approach aimed to challenge conventional notions of design and explore new possibilities in form, materials, and visual composition.

The resulting furniture pieces were often visually striking and visually engaging, becoming works of art in their own right.

However, it's important to note that the Bauhaus style did not completely neglect function and ergonomics.

The movement sought to find a balance between artistic expression and practicality, with some furniture designs incorporating ergonomic considerations and functional features.

Overall, the Bauhaus style's focus on sculptural, individualistic, artistic, and fragmented furniture reflected its broader mission to blur the boundaries between art and design, ultimately influencing the development of modern design principles.

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Answer:

(1)lower frequency

(2)lower amplitude

(3)higher frequency

(4)higher amplitude

Mr. lyall wanter to hear a music (lower frequency and lower amplitude) but, the student was playing a noise (higher frequency and higher amplitude)

Explanation:

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Based on the direction of the arrow indicating the prevailing wind direction (towards the right), it is likely that the longshore current will be flowing to the left (blue) and the beach drift will be moving to the right (red).

Therefore, the correct answer is Longshore current to the left (blue) and beach drift to the right (red).
to predict the directions of the longshore current and beach drift in the figure shown, we must consider the following terms: longshore current and beach drift.

Since the figure is not provided, I can only explain the concepts and how to determine the direction for each:

1. Longshore current: It is the movement of water parallel to the shoreline, caused by the waves breaking at an angle. To determine the direction, observe which way the waves are breaking and moving along the shore.

2. Beach drift: Also known as littoral drift, it is the movement of sand and sediment along the shoreline, caused by the longshore current. To determine the direction, observe the direction of the longshore current, as the sand and sediment will follow the same path.

Once you have the figure, you can apply these concepts to predict the directions of the longshore current and beach drift.

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There is no such thing as an ideal machine because no machine is 100 % efficient.

Hence option D is the correct option.

For a machine to be ideal, machine should follow many criteria the machine should be frictionless and the work input must always be equal to the work output.

In reality, no machine is an ideal machine as every machine involves friction. There is no machine without friction. Friction is a necessity in our life. Without friction, we can not survive. Friction helps us to walk and even stop. Friction is like oxygen, it has vital importance in our life. Hence no machine is friction-free and friction causes wear and tear in machines. Similarly, no machine is 100 % efficient. There is always some energy loss in the process, so work input is never equal to the work output.

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