Current is a stream of

Answer:

ggggggg

Explanation:

Answer:

Kinetic Energy = 1/2mv^2

Kinetic Energy = 1/2(150 kg)(20 m/s)^2

Kinetic Energy = 75 kg(400 m/s)

Kinetic Energy = 30000 J

Let me know if this helps!

Answer:

i think it's 1400

Explanation:

w = Force x displacement

w = 400 x 3.5

The requried, a. average velocity = 9.42 meters/second and b. the ball's centripetal acceleration is 59.11 meters/second².

Velocity is defined as the rate of change in the position of an object with respect to time.

a) The average velocity of the ball can be found by dividing the total distance traveled by the time taken.

average velocity = total distance/time taken

average velocity = (3π meters/turn) x (120 turns/minute) x (1/60 minutes/second)

average velocity = 9.42 meters/second

b) The ball's centripetal acceleration is given by the formula a = v^2/r, where v is the velocity of the ball and r is the radius of the circular path.

a = v²/r

a = (9.42 m/s)² / 1.5 m

a = 59.11 m/s²

Therefore, the ball's centripetal acceleration is 59.11 meters/second².

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Answer:

it just condensed you know it isn't a big deal whatever happens does change anything

The captain should maintain a speed of 11.9 mi/h at a bearing of N52°E in order to have an actual course of 10 mi/h at a bearing of N70°E, taking into account the 4 mi/h current due east.

To determine the speed and bearing that the captain should maintain, we can use vector addition.

Let's start by drawing a diagram:

                 N

                 |

                 |

W ----------------S------------------ E

                 |

                 |

                 S'

Here, S represents the position of the ship, S' represents the position the ship would be in if there were no current, N represents due north, and W represents due west.

We know that the ship's actual course is 10 mi/h at a bearing of N70°E. This means that the ship is moving in a direction that is 70° east of due north, and has a speed of 10 mi/h. We can represent this velocity vector as:

           10 mi/h

      ------------------

      |   /              /

      |  /              /

      | /              /

      |/ 70°           / N

      S--------------

Next, we know that there is a current with a velocity of 4 mi/h due east. We can represent this velocity vector as:

              4 mi/h

       ------------------

       |                 /

       |                /

       |               /

       |              /  E

       |             /

       |            /

       |           /

       |          /

W ------S---------

To determine the speed and bearing that the captain should maintain, we need to find the vector sum of the ship's actual velocity vector and the current velocity vector. We can do this by resolving the two vectors into their components, adding the corresponding components, and then combining the resulting components back into a vector.

First, let's resolve the ship's actual velocity vector into its components. The component of velocity in the northward direction is:

10 mi/h * sin(70°) = 9.4 mi/h

The component of velocity in the eastward direction is:

10 mi/h * cos(70°) = 3.2 mi/h

Next, let's resolve the current velocity vector into its components. The component of velocity in the northward direction is 0 mi/h, since the current is due east. The component of velocity in the eastward direction is:

4 mi/h

Now, we can add the corresponding components:

9.4 mi/h + 0 mi/h = 9.4 mi/h (northward component)

3.2 mi/h + 4 mi/h = 7.2 mi/h (eastward component)

Finally, we can combine these components back into a vector using the Pythagorean theorem and the inverse tangent function:

velocity = sqrt(9.4^2 + 7.2^2) = 11.9 mi/h (magnitude)

bearing = atan(9.4/7.2) = 52° (angle)

Therefore, the captain should maintain a speed of 11.9 mi/h at a bearing of N52°E in order to have an actual course of 10 mi/h at a bearing of N70°E, taking into account the 4 mi/h current due east.

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The average force of the beam expert is 648,365.

The force applied by a body that's traveling at a definite velocity for a definite period of time is called average force.

mass of pile driver (m) = 1900 kg

distance of pile driver to steel beam (s) = 4.80m

depth of steel driven (d) = 13.4= 0.134 m

acceleration due to gravity (g0 = 9.8 m/s^{2}

calculate the average force exerted on the pile driver by the beam.

from work done = force x distance

work done = change in potential energy of the pile driver

equating the two equations above we have

              force x distance = m x g x (s - d)

             f x 0.134= 1900 x 9.8 x (4.80- (-0.134))

             d = - 0.134because the steel beam went down at we are taking its  

             initial position to be an origin point which is 0

             f = ( 1900x 9.8 x (4.80- (-0.134)) ) ÷ 0.134

=648,365

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The force at which water is shot is 1.18 × 10^-2 N

How do you calculate water pressure at a depth?

Water pressure at a depth is given by , P=gh, where h represents the difference between the height of the water's surface and the height of the measurement point, such as the outlet of a hose leaving a storage tank,

In the given problem

diameter of hole = 3mm

radius,r = 1.5mm

Pressure of the hole = ρgh

ρ=1000 Kg/m^3

Force =  Pressure × Area

         = ρgh × πr^2

         = 1000× 9.8× 17× 10^(-2) × 3.14 ×  (1.5× 10^(-3))^2

         = 1.18× 10^(-2)

Therefore the force at which water is shot is  1.18× 10^(-2)

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The equation (12.20) you mentioned is not specified, so I cannot provide a specific analysis based on that equation. However, I can provide a general explanation regarding the equal capacitance design.

In an equal capacitance design, the idea is to have multiple capacitors with equal capacitance values. This design aims to distribute the voltage equally among the capacitors when they are connected in parallel. Each capacitor shares an equal amount of the total charge stored.

Now, if we consider the general expression for the charge stored in a capacitor:

Q = C × V

Where Q is the charge stored, C is the capacitance, and V is the voltage across the capacitor.

In an equal capacitance design, each capacitor would have the same capacitance, denoted as C. However, the voltage across each capacitor would differ depending on the charge distribution and circuit configuration.

If we try to apply the general expression for the charge to an equal capacitance design, we would have:

Q_total = C × V_total

Where Q_total represents the total charge stored in the system and V_total represents the total voltage across the capacitors.

Since each capacitor in the equal capacitance design would have a different voltage value, the sum of the voltages across the capacitors cannot be equal to the total voltage V_total. Therefore, the q expression, as defined in equation (12.20) or any other specific expression, cannot be realized using the equal capacitance design.

In summary, the equal capacitance design does not allow for the realization of a specific charge distribution or voltage configuration described by a particular expression like q in equation (12.20) unless additional circuit elements or configurations are introduced.

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Answer:

6.25 g/cm³

Explanation:

2 cm * 2 cm * 3 cm = 12 cm³ (volume)

75 g / 12 cm³ = 6.25 g/cm³

Answer:

striking a hammer on a nail

Answer:

The person above is correct i got it right on my test :)

Explanation:

In order to determine the density of a cylinder, we need to know its mass and volume. The mass of the cylinder is given as 29.2 grams, but the volume is not provided. Without the volume, it is impossible to calculate the density of the cylinder.

As for whether or not the cylinder will float in water, that also depends on its density. If the density of the cylinder is less than the density of water (1), then it will float. However, without knowing the density of the cylinder, it is impossible to determine whether or not it will float in water.

The distance from point s to point p is 0.8 meters by the vector coordinates s and p.

A vector is an entity that has both dimension and direction. A directed boundary can be used to represent a vector graphically, with the length of the segment corresponding to the vector's magnitude and the direction being indicated by an arrow. From its tail to its head, the vector points in a direction. The mathematical or geometrical representation of a quantity is another use of the term. Vectors can be found in nature as force, momentum, electromagnetic fields, weight, and velocity.

We are given the point s is (10 m, 10 m, 7 m) and the point p is (4 m, 5 m, 5 m).

Now the vector coordinates are: (10-4)i+(10-5)j+(7-5)k=6i+5j+2k.

The distance in the vector form is: 5/(6²+5²+2²)=5/65=0.8

So the distance is 0.8 m.

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The order of band in which the light becomes the brightest is n = 0.

Diffraction is the phenomena of the spreading of waves around obstacles. Diffraction occurs in electromagnetic radiation, such as light, X-rays, and gamma rays, etc.

When light waves pass near a barrier they tend to bend around that barrier and become spread out.

The order bands n=2 becomes dimmest due to the spreading out of the light wave.

Thus, the order of band in which the light becomes the brightest is n = 0.

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n = 0 is correct for edge. :)

The exact value of the heat transfer coefficient depends on several factors, including the geometry of the surface, the properties of the fluid, and the flow conditions.

The heat transfer coefficient is a measure of the rate of heat transfer per unit area of a surface. It depends on several factors, including the mode of heat transfer, the properties of the fluid, and the surface geometry.

                                                In general, the heat transfer coefficient is higher in forced convection than in natural convection because forced convection involves the use of a fluid flow driven by an external source (such as a fan or a pump), which can enhance the heat transfer rate.
                                                  In natural convection, the fluid motion is driven by buoyancy forces resulting from density differences caused by temperature gradients. This type of heat transfer is less efficient than forced convection because the flow rate is lower, and the heat transfer rate is limited by the ability of the fluid to flow due to density changes.

Therefore, in general, the convection heat transfer coefficient is usually higher in forced convection than in natural convection due to the higher flow rate and better mixing of the fluid, leading to higher heat transfer rates.

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The minimum speed of the riders at the top of the loop in a carnival loop-the-loop ride can be calculated using the concept of centripetal force. In this case, the minimum speed is determined by the gravitational force and the normal force acting on the riders.

The minimum speed required to maintain contact with the loop is when the normal force becomes zero, resulting in a weightless situation.

To find the minimum speed at the top of the loop, we can equate the gravitational force (mg) with the centripetal force (mv^2/r), where m is the mass of the riders, g is the acceleration due to gravity, v is the speed, and r is the radius of the loop. At the top of the loop, the normal force is directed towards the center of the loop, and it decreases until it becomes zero when the riders are weightless.

By setting the normal force to zero, we can solve for the minimum speed v. With a radius of 4m, the minimum speed can be determined using the equation v = sqrt(gr), where g is approximately 9.8 m/s^2. Substituting the values, the minimum speed at the top of the loop is approximately 8.86 m/s.

This is the minimum speed required for the riders to stay on the loop without falling off due to gravity.

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Answer:

Explanation:

The wavelength of a wave can be found by using the formula

\(\lambda = \frac{c}{f} \\\)

where

c is the speed of the wave

f is the frequency

From the question

c = 500 m/s

f = 25 Hz

We have

\( \lambda = \frac{500}{25} \\ = 20\)

We have the final answer as

Hope this helps you

The value to add in the blank to complete the square in the expression x^2 + 6x + 2 + __ is 9.

To complete the square in the expression x^2 + 6x + 2, we need to find a value that, when added to the expression, creates a perfect square trinomial.

To find this value, we take half of the coefficient of x (which is 6 in this case), square it, and add it to the expression.

Half of 6 is 3, and squaring 3 gives us 9. So, we can add 9 to the expression to complete the square:

x^2 + 6x + 2 + 9

This simplifies to:

x^2 + 6x + 11

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1) The direction it points depends on the direction of the electric current in the wires.

2) The magnetic field lines in the region would form circles around each individual wire carrying current.

3) This is because of the right-hand rule

The magnetic field produced by the electric current forms a circular magnetic field around the wire in accordance with the right-hand rule, which is applicable to conventional current flow.

The current's flow direction determines the direction of the magnetic field lines. The curled fingers of your right hand, which is holding the wire with your thumb pointing in the direction of the current flow, would point in the direction of the magnetic field.

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Electrons spend most of their time close to the nucleus because they are attracted to the positively charged protons in the nucleus by the electromagnetic force.

This force causes the electrons to move in an orbit around the nucleus, much like planets orbiting around the sun.

The closer an electron is to the nucleus, the stronger the attractive force between them. This results in the electrons being tightly bound to the nucleus, and they tend to spend most of their time in the lowest energy level, known as the ground state. In this state, the electrons are as close to the nucleus as possible, which is why they spend most of their time in that region.

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The correct statement is A) for a longer time than in New York. The hard-boiled egg would need to be placed in boiling water for a longer time in Quito compared to New York City.

The boiling point of water decreases with increasing altitude. Since Quito is located at an altitude of 2,850 meters above sea level, the boiling point of water is lower than at sea level. This means that the water in Quito boils at a lower temperature than in New York City. When cooking a hard-boiled egg, the water needs to reach a certain temperature to properly cook the egg. In Quito, the water will take longer to reach that temperature due to the lower boiling point, requiring a longer cooking time for the egg to become hard-boiled.

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Last option is correct that is the relationship between wavelength of light and the quantity of energy per photon is inversely related.

Energy is inversely correlated with wavelength because it is directly proportional to the electromagnetic frequency of the photon. The energy of a photon increases with its frequency. In other words, the energy of a photon decreases with increasing wavelength. Wavelength and frequency are related to energy in the same way that they are to light. Greater energy is correlated with shorter wavelengths and higher frequencies. Therefore, lower energy is produced by longer wavelengths and lower frequencies. E = hv is the energy equation. When we increase the denominator, the fraction also increases, resulting in a decrease in energy. As a result, energy and wavelength have an inverse relationship.

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Answer:

mistakes are called. mutations. mutations are. changes in the sequence of DNA. mistakes can be made during the DNA replication process but DNA replication process has features that reduce mutations.

Explanation:

hope this helps

Answer:

Girls, we found one.

The "uwu pwease pwotect me, waifu" 'nice guy' that tries convincing naive girls to send inappropriate pictures within 2 hours of knowing them because he "in love" them.

The reality of the situation is the dude is very desperate and wants to project their anime girl fantasies onto a girl that pities them because "gwuys are mwean" to them.

Step-by-step explanation:

You're 16, kid. Two years until you're 18. Just say you want a weeb girl/friend. no need to try and draw pity from little girls and use that to manipulate them. If you said this when you were 12, it would be excusable. But you're 16. If you want to attract girls, don't use pity. Or try to type words in a cutesy manner, that's just very unattractive and makes you seem desperate.

Looking at your spectroscope, you see several discrete, clearly defined lines. The one possible source for this spectrum is fluorescent lamp.

What is fluorescent lamp?

A  fluorescent lamp is a low pressure mercury lamp or discharge bulb. When the light spectrum emitting from the fluorescent bulb fall on the spectroscope, it releases several discrete lines.

In this lamp, fluorescence source is used which produces visible light when it lights up.

Moreover, a fluorescent lamp alters electrical energy into chemical energy or light more efficiently than the incandescent lamp.

Simply put, fluorescent lamps are more efficient than other lamps and are mostly used for commercial and outdoor application as they use 75% less electricity.

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Answer:

 ΔR = 5 s

Explanation:

The absolute uncertainty or error in an expression is

       ΔR = | \(\frac{dR}{dB}\) | ΔB + | \(\frac{dR}{dA}\) | ΔA

the absolute value guarantees to take the unfavorable case, that is, the maximum error.

We look for the derivatives

       \(\frac{dR}{dB}\) = 1

       \(\frac{dR}{dA}\) = -1

we substitute

       ΔR = 1 ΔB + 1 ΔA

of the data

       ΔB = 3 s

       ΔA = 2 s

       ΔR = 3 + 2

       ΔR = 5 s

Answer:

increases

Explanation:

as we know, that submarines need to be really really strong to go down in the ocean. That means that the more they go down in the water (liquid) then, they will face more pressure. That as we said, that the more down they go, the more pressure will be on them, which means that the pressure will keep on increasing as you go down and down in the ocean.

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Answer: Pole star can be located using Ursa Major by extending an imaginary line from the last two stars towards the North direction.

Explanation:

Answer:

The pole star can be located using the Ursa Major constellation, by imagining a line towards the Northern direction connecting two stars present at the end of the bowl, This imaginary line meets Pole Star. The length of the imaginary line from the bowl is about five times the distance between the two stars of the bowl.

Explanation: