Find the displacement x for times from 0 to 10 seconds when the maximum displacement

Answer:

Black holes do not have a bottom.

Explanation:

Hope this helps :)

To calculate the mass of a wind turbine blade with a given kinetic energy and velocity, we can use the equation for kinetic energy:

KE = (1/2) * mass * velocity^2 Given: Kinetic energy (KE) = 1000000 J Velocity (v) = 6 m/s. We need to solve the equation for mass (m): 1000000 J = (1/2) * m * (6 m/s)^2. Simplifying the equation: 1000000 J = (1/2) * m * 36 m^2/s^2. Dividing both sides of the equation by 18 m^2/s^2: 1000000 J / 18 m^2/s^2 = m. m ≈ 55555.56 kg. Therefore, the mass of the wind turbine blade with a kinetic energy of 1000000 J and turning at 6 m/s is approximately 55555.56 kg.

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Answer:

C

Explanation:

Most often you will not see immediate results with dieting and exercising.

Exercise helps to increase the rate of metabolic activities in the body. So it will helps to reduce the issues from heavy calories. Thus increasing exercise helps to balance food  intake but to get a significant change in weight, we have to waite and continue the exercises.

Anabolism and catabolism together called as metabolism. Anabolism is the synthesis of  biological compounds whereas catabolism is breaking or decomposition reaction. These biochemical reaction regulates the functions in our body.

If we uptake high calorie  food and its not burned by digestion then it will leads to weight gain and other health issues. Fat will deposits in body if the calorious foods are not digested properly.

Exercises helps to increase the rate metabolic activities in our body. It strengthens our muscles and bones and burn extra calories of food by utilise it to work  out.

Therefore, increasing exercise will help balance the larger than usual calorie intake but It takes a while to see significant results so she should keep it up and be patient. Hence, option C is correct.

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Answer:

Yes.

Explanation:

Food provides units of energy in the form of calories that give our bodies fuel to perform all functions from the most basic like breathing to more complicated activities. We need a minimum amount of calories from food to sustain basic metabolic functions and more to carry out physical activities. The more active we are, the more food we need.

Answer:

yes

Explanation:

because Our body uses energy for all of its functions and food is the main source of energy. Food contains nutrients that when broken down in the gastrointestinal tract release energy that can be used by the body's cells, tissues and organs for normal function, growth and repair.

The net charge on the surface of the sphere is 7.37 × 10⁻² C.

The electric field, like that of a point charge, is directed away from the center and is normal to the surface of a Spherical conductor. The net charge on the surface of the sphere is what the student is looking for.

An electric field exists around any charged object, which can be seen in the spherical conductor.

The electric field is directed outwards perpendicular to the conductor's surface at all points. The electric field is a vector field, which means that it has a magnitude (size) and a direction.

The formula for net charge on a surface of a spherical conductor is given byq=4πR²σwhere R is the radius of the conductor and σ is the surface charge density.

q = 4π (0.0767)² (1.93 × 10⁻⁶)Cq = 4π (0.0767)² (1.93 × 10⁻² C/m²)q = 4π (0.0767)² (1.93 × 10⁴)q = 7.37 × 10⁻² CTherefore, the net charge on the surface of the sphere is 7.37 × 10⁻² C.

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The statement is True. according to scientists, The Great Salt Lake could go dry in the next five years.

The term "Great Salt" is not a recognized term in physics, and it is unclear what is meant by it. However, if you are referring to the Great Salt Lake, then it is a large saltwater lake located in Utah, USA. As a physical entity, the Great Salt Lake has several interesting properties due to its high salinity.

For example, it is denser than freshwater and can therefore support heavier objects. Its high salt content also lowers the freezing point of water, which means that the lake's surface remains liquid even in extremely cold temperatures. These properties have practical applications, such as for the extraction of minerals from the lakebed and the testing of buoyancy and flotation devices.

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c. The tissue has a negative charge, and the balloon has a positive charge.

Due to the opposing charges of both things, the tissue paper repels the balloon. In this instance, it is likely that the balloon has a positive charge whereas the tissue paper has a negative charge. While like charges repel one another, opposite charges attract.

The fact that the balloon is repelled by the tissue paper leads us to conclude that both items have opposing charges. The tissue paper has a negative charge, but the balloon is most likely to have a positive charge.

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Radii is a vital feature of the elements, and it can be useful in determining the characteristics of elements in various chemical and physical processes. The radii of atoms and ions of the same element differ due to their various charge and mass characteristics.

Atomic and ionic radii increase as you move down a group on the periodic table, and decrease as you move across a period from left to right due to increased nuclear charge, making the electrons closer to the nucleus. The size of an atom and ion also changes due to the number of electrons charge, and electronic configuration.In order of increasing radius, the arrangement of \(Ne, F-, O2-, Br-, Rb\) is given as follows:

\(Ne < F- < O2- < Br- < Rb+\)

Rb+ has the smallest radius due to its large nuclear charge and fewer electrons in the valence shell.

As a result, they are larger than Rb+. O2- has more electrons than Ne and is the largest among the given ions and atoms. It is important to note that in certain conditions, the trends in radii may not be valid because of hybridization and other factors. Nonetheless, this arrangement is valid for the given ions and atoms.

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Answer:

1. is held

2. was

3. be cancelled

4. has been moved

5. is being filmed

Explanation:

If you read them out, you can find out which ones flow the best! Hope this helps!

Answer:

the first question is B, if not then its C

Explanation:

sorry if I am wrong

Answer:

Material medium

compressions and rarefactions

Explanation:

A sound wave is an example of a mechanical wave. All mechanical waves require a material medium for propagation. The medium for the propagation of sound is air. This is the reason why, if you cover your mouth, it will be difficult for another person to hear whatever you are saying.

Sound is also a longitudinal wave. Longitudinal waves are described in terms of compressions and rarefactions. Compressions refer to areas where air molecules crowd together while rarefactions refer to areas where the air molecules spread out.

To find the work done by the force field F along the given curves, we need to evaluate the line integrals of F⋅dr along each curve.

For the parabolic curve C1: x = t, y = \(t^2\), 0 ≤ t ≤ 4.

We parameterize the curve as r(t) = ti + \(t^2j\), where 0 ≤ t ≤ 4.

The differential of the position vector dr = dx i + dy j becomes dr = dt i + 2t dt j.

The dot product F⋅dr is given by F⋅dr = (xi + yj)⋅(dt i + 2t dt j) = (x dt) + (2ty dt).

Substituting the values of x and y from the parameterization, we have F⋅dr = (t dt) + (2t(\(t^2\)) dt) = (t + \(2t^3\)) dt.

Integrating F⋅dr over the curve C1, we get ∫C1 F⋅dr = ∫[0,4] (t + \(2t^3\)) dt.

For the straight line segment C2: x = \(4t^2\), y = \(16t^2\), 0 ≤ t ≤ 1.

We parameterize the curve as r(t) = \(4t^2i\) + \(16t^2j\), where 0 ≤ t ≤ 1.

The differential of the position vector dr = dx i + dy j becomes dr = (8t dt) i + (32t dt) j.

The dot product F⋅dr is given by F⋅dr = (xi + yj)⋅((8t dt) i + (32t dt) j) = (8tx dt) + (32ty dt).

Substituting the values of x and y from the parameterization, we have F⋅dr = (8t(\(8t^2\)) dt) + (32t(\(16t^2\)) dt) = (\(64t^3\) + \(512t^3\)) dt = (\(576t^3\)) dt.

Integrating F⋅dr over the curve C2, we get ∫C2 F⋅dr = ∫[0,1] (\(576t^3\)) dt.

To find the specific values of the line integrals, we need to evaluate the definite integrals.

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Answer:

sequence

Explanation:

sequences are the way in which things are ordered, for example: 1, 2, 3, 4 is a sequence:)

Answer:

Option D. 9.47 V

Explanation:

We'll begin by calculating the equivalent resistance of the circuit. This can be obtained as follow:

Resistor 1 (R₁) = 20 Ω

Resistor 2 (R₂) = 30 Ω

Resistor 3 (R₃) = 45 Ω

Equivalent Resistance (R) =?

R = R₁ + R₂ + R₃ (series connections)

R = 20 + 30 + 45

R = 95 Ω

Next, we shall determine the current in the circuit. This can be obtained as follow:

Voltage (V) = 45 V

Equivalent Resistance (R) = 95 Ω

Current (I) =?

V = IR

45 = I × 95

Divide both side by 95

I = 45 / 95

I = 0.4737 A

Finally, we shall determine, the voltage across R₁. This can be obtained as follow:

NOTE: Since the resistors are in series connection, the same current will pass through them.

Current (I) = 0.4737 A

Resistor 1 (R₁) = 20 Ω

Voltage 1 (V₁) =?

V₁ = IR₁

V₁ = 0.4737 × 20

V₁ = 9.47 V

Therefore, the voltage across R₁ is 9.47 V.

Answer:

9.47

Explanation:

Just Took the Test

The plane's heading is 4.61 degrees south of east, which is the direction the pilot needs to steer the plane in order to reach her objective and the trip takes 1.83 hours.

The airspeed of 200 mph can be broken down into its x and y components as follows: Vx = 200 mph * cos (0°) = 200 mph Vy = 200 mph * sin (0°) = 0 mph To solve this problem, we can break down the velocity vectors into their x and y components: The airspeed of 200 mph can be broken down into its x and y components as follows: Vx = 200 \(mph * cos (0°) = 200 mph Vy = 200 mph * sin (0°) = 0 mph\)

The wind velocity of 20.0 mph at an angle of 60.0° north of east can be broken down into its x and y components as follows:\(Vwx = 20.0 mph * cos(60.0°) = 10.0 mph Vwy = 20.0 mph * sin(60.0°)\) = 17.3 mph The resultant velocity vector is the vector sum of the airspeed and the wind velocity: Vrx = Vx + Vwx = 200 mph + 10.0 mph = 210 mpm Vry = Vy + Vwy = 0 mph + 17.3 mph = 17.3 mph

The speed of the plane relative to the ground is the magnitude of the resultant velocity vector:\(|Vr| = sqrt (Vrx^2 + Vry^2) = sqrt ((210 mph) ^2 + (17.3 mph) ^2) ≈ 211\)mph The direction of the plane's velocity relative to the ground is given by the angle that the resultant velocity vector makes with due east:\(θ = atan(Vry / Vrx) = atan(17.3 mph / 210 mph) ≈\) 4.7° north of east

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Complete question is :

A Plane Has An Airspeed Of 200 Mph. The Pilot Wishes To Reach Adestination 600 Mi Due East, But A Wind Is Blowing At 50 Mph In Thedirection 30o North Of Eastpart Ain What Direction Must The Pilot Head The Plane In Order To Reachher Destination? (2sig Figs)Part Bhow Long Will The Trip Take?(2 Sig Figs)Thanks!

a plane has an airspeed of 200 mph. the pilot wishes to reach adestination 600 mi due east, but a wind is blowing at 50 mph in thedirection 30o north of east

part A

in what direction must the pilot head the plane in order to reachher destination?

part B

how long will the trip take?

Answer:

0.25 cm³.

Explanation:

We shall apply Boyle's law to find the solution . According to it

PV = constant where P is pressure and V is volume of the gas.

P₁ V₁ = P₂V₂

1 x .5 = 2 x V₂

V₂ = 0.25 cm³.

In a controlled experiment, control group is compared to an experimental group.

The correct option is A.

In experiments, independent variables are changed to see how they effect dependent variables. In a controlled experiment, every factor besides the independent variable is kept under control or constant to ensure that it has no impact on the dependent variable.

To reduce potential confounding factors in controlled experiments, researchers randomly assign participants to either the experimental group or the control group. The experimental group is the group that receives the variable, or treatment, that the researchers are testing, whereas the control group does not.

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Lamarck's theory of evolution, also known as Lamarckism, proposed two main ideas. Firstly, the theory of use and disuse suggests that organs or traits that are used more frequently become stronger and more developed, while those that are not used gradually deteriorate over generations. Secondly, the theory of inheritance of acquired characteristics states that an organism can pass on traits acquired during its lifetime to its offspring.

Under Lamarck's theory, an organism might evolve by developing or strengthening certain traits through use and passing them on to the next generation. For example, if a giraffe stretches its neck to reach leaves high in the trees, its offspring would inherit a longer neck. This gradual elongation of the neck would continue over generations.

In contrast, under Darwin's theory of natural selection, an organism might evolve through the process of adaptation to its environment. For instance, consider a bird population with varying beak sizes. If the available food source consists of small seeds, individuals with smaller beaks are more likely to survive and reproduce, passing on their genes for smaller beaks. Over time, the average beak size in the population would decrease due to the selective advantage of smaller beaks in obtaining food.

In summary, Lamarck's theory proposed that acquired traits can be inherited, leading to gradual changes in an organism's characteristics. Darwin's theory, on the other hand, emphasized the role of natural selection in the adaptation of organisms to their environment, resulting in the accumulation of advantageous traits over generations.

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The impact speed will be

v^2 = 2*9.8*1.3

v^2 = 25.48

v= 5.04 m/s or O C. 5.0 m/s

Explanation:

Answer:

Cinder blocks

Explanation:

From safety training guides, whenever there is inadequate support, poor

construction, or a movement in the components of the scaffold such as the coupler as well as the base upon which the scaffold structure is built, there will be a great danger of collapse.

In light of this safety rule, Cinder blocks such as sandcrete blocks, bricks e.t.c shouldn't be used to support scaffold because they have a high tendency of being crushed under load

Ganymede is the largest jovian moon that appears to have been captured by Jupiter's gravitational pull during the early formation of the solar system.

The planetary-mass moon Ganymede, also known as Jupiter III, is the largest and most massive natural satellite of Jupiter and the entire Solar System. Despite being the only moon in the Solar System with a magnetic field, it is the largest object in the Solar System without an atmosphere. Although it is larger than the planet Mercury, Io, or the Moon, Titan has a slightly lower surface gravity. Water and silicate rock make up almost equal parts of Ganymede. It is a fully differentiated entity with a liquid core rich in iron and an interior ocean that may be larger than the sum of all the oceans on Earth.

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Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of options. However, one material that is good candidate for conducting electricity without reacting with other materials is metallic vanadium dioxide. This is because of the inability of this electrical conductor to conduct heat (an unusual property for all other electrical conductors) and thus makes it difficult for it to react with other materials (since an increase in temperature increases possibility of a reaction).

Answer:

x J = (1500 kg)(29 m/s)(y m/s)

Explanation:

x J = (1500 kg)(29 m/s)(y m/s)

To know that a 1500 kg car is moving at 29 m/s is not enough.

The value of x depends on y. You’re missing a number of meters and a quantity of ‘per seconds’ somewhere in your problem statement and you need to find them in order to solve the problem

Answer:

erosion

Explanation:

Hitting the metal rod parallel to its axis will produce a longitudinal wave. By striking the rod perpendicular to its axis, you can produce a transverse wave.

By compressing the coils in a tiny area and then releasing the compressed area, a stretched spring can create a longitudinal wave. The disruption will then continue to spread as a longitudinal pulse.

We know that rarefaction happens in a longitudinal wave. Compression won't occur since a stretched string is inelastic and incompressible. Hence, a stretched string's longitudinal wave.

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The heat lost by water is equal to the heat gained by ice here. The heat lost from water for a temperature change of 25 to 10 degree Celsius is 12300 J.

Calorimetry is an analytical technique used to determine the heat energy absorbed or evolved by a system. The calorimetric equation relating the heat energy q with the mass m, specific heat c and the temperature difference ΔT is :

q = m c ΔT

Here, the heat energy gained by the dry ice is equal to the heat lost from water.

temperature difference for water = 25- 10 °C = 15°C

thus, 15°C is lost from water.

mass of water = 200 g

q =200 g × 4.12 J/°C g × 10°C = 12300 J

Therefore, the heat energy lost from water is 12300 J.

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The original frequency of the guitar string was 416 Hz.

The original frequency of the guitar string can be determined by using the formula for beat frequency:
Beat frequency = |f1 - f2|
Where f1 and f2 are the frequencies of the two sounds producing the beat.

In this case, the beat frequency is 5 Hz and the frequency of the tuning fork is 421 Hz. We can plug these values into the formula and solve for the original frequency of the guitar string (f2):

5 Hz = |421 Hz - f2|

There are two possible solutions for this equation:

f2 = 421 Hz + 5 Hz = 426 Hz
or
f2 = 421 Hz - 5 Hz = 416 Hz

Since the problem states that the guitar string is out of tune and the frequency increases when it is tightened, the original frequency of the guitar string must be lower than the frequency of the tuning fork. Therefore, the original frequency of the guitar string is 416 Hz.

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