A ball is thrown up at an angle with a speed of 15 m/s. Assuming air resistance can be ignored and the ball does not spin, how fast will the ball be moving when it is caught at the same height from which it was thrown

2 kanbans are needed.

To determine the number of kanbans needed, we need to consider the demand rate, container capacity, cycle time, and safety factor.

The daily demand for the material is 86 kg. Since each vat can hold 52 kg, we divide the daily demand by the vat capacity: 86 kg / 52 kg ≈ 1.65. This means that we need approximately 1.65 vats per day to meet the demand.

Next, we consider the cycle time, which is four hours. In an eight-hour workday, there are two cycles: 8 hours / 4 hours = 2 cycles. Therefore, we need enough kanbans to cover the demand for two cycles.

Taking into account the safety factor of 1.00, we round up the number of kanbans to ensure sufficient supply. Thus, we need 2 kanbans to meet the material demand in this scenario.

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The electric fields is always directed from higher potential to the lower potential.

The electric fields always aiming from the region of higher potential to the region of lower potential. So the force of electrostatic and the direction of the travel of electrons will be always from lower potential to the region of higher potential.

An electric field is defined as the physical field which covers the electrically charged particles and also they can apply force on all other charged particles.

So we can conclude that the electric fields is always directed from higher potential to the lower potential.

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In order to find the time it takes, first let's convert the distance from miles per hour to feet per second: calculate the acceleration using Torricelli's equation

Then, let's :

Now, we calculate the time with the formula below:

Therefore the time required is 1.7 seconds.

Answer:

Explanation:

The current produced by a 9-volt battery flowing through a resistance of 0.2 ohms would be  45 Ampere.

Resistance is the obstruction of electrons in an electrically conducting material.

The mathematical relation for resistance can be understood with the help of the empirical relation provided by Ohm's law.

V=IR

As given in the problem we have to find the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms.

current produced by a 9-volt battery  = voltage /resistance

                                                              = 9 volt /0.2 ohms

                                                              = 45 Ampere

Thus, the current produced would be 45 Ampere.

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The labeling of blood vessels shown below:

Arterioles are the incredibly small branches of arteries, the blood channels that convey blood out from the heart. Venules, which are incredibly tiny branches that gather blood from numerous organs and body parts, join to create veins, which carry blood back to the heart.

The arteries divide into progressively smaller branches that supply the body's tissues and organs with oxygen and other nutrients. The oxygen and other nutrients enter the cells when the blood passes through the capillaries, while waste products from the cells travel into the capillaries.

Labeling are shown below:

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The complete question is as follows:

Label the blood vessels using the hints provided. Pterygoid plexus of v Middle meningeal Superficial temporal Maxillary v Facial v Posterior auricular V Reset Zoom.

The focal length (in meters) of a lens  = 18.4 m

When a lens is focused at infinity, the focal length of the lens is discovered. We can determine the angle of view, or how much of the scene will be captured, and the magnification, or how big the individual elements will be, by measuring the focal length of the lens. A narrower field of view and a higher magnification result from a longer focal length.

Radius of curvature is 9.2 m.

A refractive index 1.2.

The focal length (in meters) of a lens  =

We know that the formula for  focal length:

focal length = 2 * radius of curvature

So,

Putting the value in the formula :

we get

focal length = 2 * 9.2

                    =  18.4 m

The focal length (in meters) of a lens  = 18.4 m

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Answer:

Halogen .Group 17

Explanation:-

\(\\ \rm\longmapsto ns^{1-2}np^{5}\)

Answer:

The coefficient of kinetic friction between the crate and the floor can be calculated using the formula μ = Ff / N, where Ff is the frictional force, N is the normal force, and μ is the coefficient of kinetic friction.

In this case, the normal force is equal to the weight of the crate, which is 24 kg * 9.8 m/s2 = 235.2 N. The frictional force can be calculated using the formula Ff = μ * N, where μ is the coefficient of kinetic friction and N is the normal force.

If we substitute the values for N and Ff into the formula for the coefficient of kinetic friction, we get:μ = 53 N / 235.2 N = 0.225

Therefore, the coefficient of kinetic friction between the crate and the floor is 0.225.

With the below stated fact  I think that  the pros of using synthetic materials outweighs the cons.

Before we answer the question

If the pros of using synthetic materials outweigh the cons or otherwise, let us first establish the what a synthetic material is and its pros and cons

Synthetic material

Synthetic material is a material in which a substances are changed chemically to produce a material with different characteristics.

Types of Synthetic material

Pros of Synthetic materials

Cons of Synthetic materials

In conclusion

Although Synthetic materials has so very pressing disadvantages to human kind it is unrefusable the importance of Synthetic materials to the day to day live of all humans

Therefore, I think that  the pros of using synthetic materials outweighs the cons

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The resultant magnetic field has a magnitude of approximately 0.0807 T and points at an angle of approximately 52.49 degrees from the positive x-axis.

The given problem describes a magnetic field with two components. The first component has a magnitude of 0.048 T and points along the 1x axis, while the second component has a magnitude of 0.065 T and points along the 2y axis.

To find the resultant magnetic field, we need to combine these two components. The x-component has a magnitude of 0.048 T and the y-component has a magnitude of 0.065 T.

To combine them, we can use the Pythagorean theorem, which states that the magnitude of the resultant vector (in this case, the magnetic field) can be found by taking the square root of the sum of the squares of its components.

Using this theorem, we can calculate the magnitude of the resultant magnetic field as follows:

Magnitude of the resultant magnetic field = sqrt((0.048)^2 + (0.065)^2)

Simplifying the equation gives us:

Magnitude of the resultant magnetic field = sqrt(0.002304 + 0.004225)

Magnitude of the resultant magnetic field = sqrt(0.006529)

Magnitude of the resultant magnetic field ≈ 0.0807 T

Therefore, the magnitude of the resultant magnetic field is approximately 0.0807 T.

It is important to note that we have only calculated the magnitude of the resultant magnetic field. To find its direction, we can use trigonometry. The direction can be found by taking the inverse tangent of the y-component divided by the x-component.

Direction of the resultant magnetic field = arctan(0.065/0.048)

Direction of the resultant magnetic field ≈ 52.49 degrees

So, the resultant magnetic field has a magnitude of approximately 0.0807 T and points at an angle of approximately 52.49 degrees from the positive x-axis.

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It takes approximately 49.22 seconds for the skydiver to fall 5000m.

To determine the time of a 5000m fall, we need to solve the given differential equation for y with the provided values of g, c₋D, and m.

The differential equation is:

dy/dt = g - c₋D/m * y²

To find the time it takes to fall 5000m, we can set up the integral:

∫(1/(g - c₋D/m * y²)) dy = ∫dt

Integrating both sides:

∫(1/(g - c₋D/m * y²)) dy = ∫dt

Let's first rewrite the differential equation with the given values:

dy/dt = 9.80665 - (0.2028 / 80) * y²

Now, integrate both sides:

∫(1 / (9.80665 - (0.2028 / 80) * y²)) dy = ∫dt

To solve the integral on the left side, we can use a trigonometric substitution. Let's make the substitution:

u = √((0.2028 / 80) * y²)

Then, du = √((0.2028 / 80)) * 2y dy

Now, our integral becomes:

∫(1 / (9.80665 - u²)) * (1 / √((0.2028 / 80))) * du = ∫dt

Simplifying:

∫(1 / (9.80665 - u²)) * (1 / √((0.2028 / 80))) * du = ∫dt

Now, let A be a constant given by:

A = 1 / √((0.2028 / 80))

Our integral becomes:

∫(A / (9.80665 - u²)) du = ∫dt

Using partial fractions, we can express the integrand as:

A * [1 / (2 * √(9.80665))] * [(1 / (u + √9.80665)) - (1 / (u - √9.80665))]

Integrating the above expression:

(A * [1 / (2 * √(9.80665))] * [ln|u + √9.80665| - ln|u - √9.80665|]) + C

Now, replace u with √((0.2028 / 80) * y²):

(A * [1 / (2 * √(9.80665))] * [ln|√((0.2028 / 80) * y²) + √9.80665| - ln|√((0.2028 / 80) * y²) - √9.80665|]) + C

Now, we can plug back in u and solve for t:

t + C = (A * [1 / (2 * √(9.80665))] * [ln|√((0.2028 / 80) * y²) + √9.80665| - ln|√((0.2028 / 80) * y²) - √9.80665|])

Now, let's apply the initial condition y = 0 when t = 0:

0 + C = (A * [1 / (2 * √(9.80665))] * [ln|√((0.2028 / 80) * 0²) + √9.80665| - ln|√((0.2028 / 80) * 0²) - √9.80665|])

Simplifying, we get:

C = (A * [1 / (2 * √(9.80665))] * [ln|√9.80665| - ln|√9.80665|])

The term ln|√9.80665| - ln|√9.80665| evaluates to 0, so C = 0.

Now, we can solve for t when y = 5000m:

t = (A * [1 / (2 * √(9.80665))] * [ln|√((0.2028 / 80) * (5000²)) + √9.80665| - ln|√((0.2028 / 80) * (5000²)) - √9.80665|])

Plugging in the values of A, g, c₋D, and m:

t = ([1 / √((0.2028 / 80))] * [1 / (2 * √(9.80665))] * [ln|√((0.2028 / 80) * (5000²)) + √9.80665| - ln|√((0.2028 / 80) * (5000²)) - √9.80665|])

Simplifying:

t = ([1 / √0.002535] * [1 / (2 * √9.80665)] * [ln|√(0.002535 * 25000000) + √9.80665| - ln|√(0.002535 * 25000000) - √9.80665|])

Using a calculator, we can evaluate the expression:

t ≈ 49.22 seconds

Therefore, it takes approximately 49.22 seconds for the skydiver to fall 5000m.

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A skydiver of mass m in a vertical free fall experiences an aerodynamic drag force F_D= c_Dy^2,

where y is measured downward from the start of the fall. The differential equation describing the fall is

y = g - c_D/m*y^2

Determine the time of a 5000m fall. Use g = 9.80665m/s^2, C_D=0.2028kg/m, and m = 80kg.

Answer:

I Believe the Correct Answer is respiratory system; obtains oxygen so the energy in nutrients can be extracted.

Explanation:

Respiratory System is made for oxygen and involves the Lungs Diaphragm etc.

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According to given information, During Jean Piaget's formal operational stage of cognitive development, individuals develop systematic reasoning.

During Jean Piaget's formal operational stage of cognitive development, individuals develop systematic reasoning. This stage occurs between the ages of 11 to adulthood.

Systematic reasoning involves the ability to think abstractly, consider multiple variables, and draw logical conclusions based on evidence and principles. It allows individuals to solve complex problems, form hypotheses, and make predictions.

In this stage, individuals can engage in hypothetical-deductive reasoning, which involves forming and testing hypotheses to reach a conclusion. They can consider different possibilities and systematically evaluate them based on available evidence.

For example, let's say a teenager wants to investigate the effects of different types of music on plant growth. They may form a hypothesis that classical music promotes better growth compared to rock music. To test this hypothesis, they could design an experiment with controlled variables and systematically collect data on plant growth in different music conditions. By analyzing the data and comparing the results, they can reach a conclusion about their hypothesis.

In conclusion, during Jean Piaget's formal operational stage of cognitive development, individuals develop systematic reasoning. This allows them to think abstractly, consider multiple variables, form hypotheses, and draw logical conclusions based on evidence and principles.

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The magnitude of a uniform electric field is 1.47 × \(10^{8}\) V/m.

What is an electric field?

When charge is present in any form, a point in space has an electric field that is connected to it. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field. Without any precise information of what generated the field, simply knowing the value of the electric field at a certain location is sufficient to predict what would happen to electric charges nearby.

Given,

B = 0.49 T

Energy density due to the magnetic field

\(u_{b}\) = \(\frac{1}{2mu_{0}}\)B²

Energy density due to the electric field

\(u_{e}\) = \(\frac{1}{2}\)ε₀E²

We know, \(u_{b}\) = \(u_{e}\)

\(\frac{1}{2mu_{0} }\)B² = \(\frac{1}{2}\)ε₀E²

\(\frac{1}{mu_{0} }\)B² = ε₀E²

E² = \(\frac{1}{mu_{0}E_{0} }\)B²

E =  \(\frac{1}{\sqrt{mu_{0}E_{0}}}\)B

\(\frac{1}{\sqrt{4\pi X 10^{-7} X 8.852 X 10^{-12}}}\) × 0.49

3 × \(10^{8}\) × 0.49

= 1.47 × \(10^{8}\) V/m

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Answer:

Three states of matter exist—solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume,

Explanation:

According to the information, the table is completed as follows: Do they have definite shape? no (vapor), no (water), yes (ice); Do they have definite volume? no (vapor), yes (water), yes (ice); Do they compress? yes (vapor), no (water), no (ice).

To fill the table to describe the characteristics of the states of matter we have to look for additional information of each state of matter and then complete the table. According to the information we can infer that the correct way to complete the table is:

Do they have definite shape? no (vapor), no (water), yes (ice); Do they have definite volume? no (vapor), yes (water), yes (ice); Do they compress? yes (vapor), no (water), no (ice).

Vapor | No | No | Yes

Water | No | Yes | No

Ice | Yes | Yes | No

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The main difference between a white-dwarf supernova and a massive-star supernova is the absence/presence of hydrogen lines in the spectrum.

A white-dwarf supernova occurs when a white dwarf star accumulates enough mass from a companion star to surpass the Chandrasekhar limit and undergoes a thermonuclear explosion. This explosion results in a lack of hydrogen lines in the spectrum due to the absence of hydrogen in the white dwarf's composition.

On the other hand, a massive-star supernova occurs when a massive star exhausts its fuel and undergoes a core-collapse explosion. This explosion results in the presence of hydrogen lines in the spectrum due to the abundance of hydrogen in the star's composition.

Additionally, massive-star supernovae often have a higher luminosity and longer duration than white-dwarf supernovae. Observationally, astronomers can differentiate between the two types of supernovae by analyzing the spectrum of the explosion and looking for the presence or absence of hydrogen lines.

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Answer:

The motorcyclist is 55 miles east of the small town.

Explanation:

Motion With Constant Acceleration

It's a type of motion where the velocity of an object changes uniformly in time.

The equation that rules the change of velocities is:

\(v_f=v_o+at\qquad\qquad [1]\)

Where:

a   = acceleration

vo = initial speed

vf  = final speed

t    = time

The distance traveled by the object is given by:

\(\displaystyle x=v_o.t+\frac{a.t^2}{2}\qquad\qquad [2]\)

Using the equation [1] we can solve for a:

\(\displaystyle a=\frac{v_f-v_o}{t}\)

Solving [1] for t and substituting into [2] we get the following equation:

\(V_f^2=V_o^2+2aX\)

The motorcyclist has an acceleration of a=4\ m/s^2 and an initial distance of 5 m where he travels at vo=15 m/s.  It's required to calculate the distance when the speed is vf=25 m/s.

Solving the last equation for X:

\(\displaystyle X=\frac{V_f^2-V_o^2}{2a}\)

Substituting:

\(\displaystyle X=\frac{25^2-15^2}{2*4}\)

\(\displaystyle X=\frac{625-225}{8}\)

X = 50 m

Adding the initial distance:

The motorcyclist is 55 miles east of the small town.

Bohr's model is a compromise between classical and modern physics to account for experimental evidence.

In Bohr's theory, there is a tiny, positively charged nucleus that is surrounded by negatively charged electrons that orbit the nucleus. According to Bohr, an electron that is farther from the nucleus has more energy than one that is closer to it.

The nonclassical presumption that electrons move in predetermined shells or orbits around the nucleus is the foundation of Bohr's model of hydrogen.

In Bohr's model, photons are incorporated into both classical and quantum mechanics to explain planetary motion.

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Answer:

At infinity the image is formed

When a lens produces light rays that are parallel, the image is: C. non-existent.

A ray diagram can be defined as the graphical representation of the possible paths light takes from one point (source) to another.

Hence, a ray diagram is a graphical representation of how light interacts with a boundary, so as to help us view a point on the image of an object.

Basically, the characteristics of an image produced from a lens or mirror can be determined by drawing a ray diagram of the possible paths taken by light.

On a ray diagram, an image produced from a lens is non-existent when the lens produces light rays that are parallel because the refracted rays of light neither diverge nor converge.

In conclusion, an image cannot be formed (non-existent) when a lens produces light rays that are parallel, due to refraction.

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Answer:

Its also know as atomic mass its the mass of isotopes.

Explanation:

relative atomic masses of sources in the local environment of the Earth's crust and atmosphere as determined by the atomic weight.

Answer:

D: 4.4m/s

Explanation:

From a known theorem the total work on a body is equal of the variation of kinetic energy:

\(W = \Delta K = K_f-K_i = \frac12 mv_f^2 - \frac12 m v_i^2\)

Taking the first and last step in the chain of equalities and replacing the values we have, we get:

\(5 = \frac12(1)v_f^2 - \frac12(1)(3)^2\\10= v_f^2 -9 \rightarrow v_f^2 = 19 \rightarrow v_f=\sqrt19 \approx 4.4m/s\)

Answer:

\(v_y = 5\ m/s\)

Explanation:

The vertical downward component of the speed of the bike can be simply found out by using the following geometric formula:

\(v_y = vSin\theta\)

where,

\(v_y\) = vertical downward component of speed = ?

v = speed = 10 m/s

θ = angle of slope = 30°

Therefore,

\(v_y = (10\ m/s)Sin\ 30^o\\v_y = 5\ m/s\)

Answer:

The first law is that if no force acts on an object, its motion will not change. In the second law, the force acting on an object is equal to its mass and acceleration. The third law is that when two objects interact, they act on each other with equal magnitude and opposite forces.

Answer:

thanks for the points

Explanation:

Answer:

C. It is caused by flowing negatively charged particles.

Explanation:

Current electricity is caused by flowing negatively charged particles. The negatively charged particles that are responsible for the flow of electricity are called electrons.

The force is equal at all points in the field as the field lines are parallel in a uniform field. So, negatively charged particles will move in the opposite direction to the current.

Hence, the correct answer is "C. It is caused by flowing negatively charged particles."

True. The amount of current produced by electromagnetic induction depends on the induced voltage, the resistance of the coil, and the circuit to which it is connected.

The induced voltage is the voltage that is created in the coil by the changing magnetic field. The resistance of the coil is the opposition to the flow of current in the coil. The circuit to which the coil is connected determines the amount of current that can flow through the coil.

The current in the coil is given by the following equation:

I = E/R

where:

I is the current in the coil

E is the induced voltage

R is the resistance of the coil

The amount of current that can flow through the coil is limited by the resistance of the coil and the circuit to which it is connected. If the resistance of the coil is high, then the current will be low. If the circuit to which the coil is connected has a low resistance, then the current will be high.

The amount of current produced by electromagnetic induction can be increased by increasing the induced voltage, decreasing the resistance of the coil, or connecting the coil to a circuit with a low resistance.

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