"Trydint" bubble-gum company claims that 3 out of 10 people
prefer their gum to "Eklypse" and they want to test if this value
is different.
The null and alternative hypothesis in symbols would be:
H

The tides on Earth are an example of the universal law of gravitation. As they are caused by the gravitational forces exerted by the Moon and the Sun on our planet.

The universal law of gravitation, formulated by Sir Isaac Newton, states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

In the case of tides on Earth, the primary forces at play are the gravitational forces exerted by the Moon and the Sun. Although the Sun is much larger than the Moon, it is also much farther away from Earth. Therefore, the gravitational force exerted by the Moon is stronger than that of the Sun.

The tidal bulges that occur on Earth are a result of the difference in gravitational forces exerted by the Moon on different parts of our planet. As the Earth rotates on its axis, different regions of the Earth experience varying gravitational forces from the Moon. This causes the water on Earth's surface to be pulled towards the Moon, resulting in high tides.

Similarly, there is another high tide on the opposite side of the Earth, known as the "opposite tide." This occurs because the gravitational force exerted by the Moon is weaker on this side, causing the water to be pulled away from the Moon.

The tides on Earth are a direct result of the universal law of gravitation, as they are caused by the gravitational forces exerted by the Moon and the Sun on our planet. Newton's first, second, and third laws of motion are not directly applicable to explaining the phenomenon of tides.

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Answer:

D.  Sound

Explanation:

Waves: one of the ways that energy may be transferred. Waves can be described as oscillations.

Electromagnetic (EM) waves are transverse waves.

EM waves can be separated into seven groups in the spectrum.  From long wavelength to short wavelength:

Sound waves are longitudinal waves.

The direction of oscillations is different between longitudinal and transverse waves:

Answer:

Sound

Explanation:

EN waves are known as electromagnetic waves

They are divided into seven parts

We can only watch Visible light not others .

Sound is not transverse wave

Answer:

4

Explanation:

if there are 1/4 cups and you need to fill a cup, you need 4
4 x 1/4 = 4/1
4/1 = 1

For someone with a negative Weber slope for weight detection, it would be easier to tell the difference between 20 pounds and 21 pounds.

The Weber's Law states that the just noticeable difference (JND) between two stimuli is proportional to the magnitude of the stimuli. A negative Weber slope indicates that the JND decreases as the magnitude of the stimuli increases. In this case, as the weight increases, the person's ability to discriminate between the weights becomes easier.

Therefore, option C, telling the difference between 20 pounds and 21 pounds, would be easier for someone with a negative Weber slope for weight detection.

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Please find attached photograph for your answer. The answer is an estimated value.

Answer:

True

Explanation:

The energy carried by a wave is proportional to its amplitude squared. The larger the strength of the electric and magnetic fields, the more work they can do and the greater the energy the electromagnetic wave carries. A wave's energy is proportional to its amplitude squared (E2 or B2).

Answer:

Montesquieu called the idea of dividing government power into three branches the "separation of powers." He thought it most important to create separate branches of government with equal but different powers. That way, the government would avoid placing too much power with one individual or group of individuals.

Explanation:

The radius of curvature of the other side of the lens must be equal to the focal length (f) of the lens.


In a lens with one side flat, the lens maker's formula can be used to determine the radius of curvature for the other side. The lens maker's formula is:
\(\frac{1}{f} = (n-1) * (\frac{1}{R_{1} } - \frac{1}{R_{2}} )\)
Here, f is the focal length, n is the refractive index of the lens material, \(R_{1}\) is the radius of curvature of the first surface, and \(R_{2}\) is the radius of curvature of the second surface.
Since one side of the lens is flat, it has an infinite radius of curvature. Thus, either \(R_{1}\)  or \(R_{2}\)  will be infinity. Assuming \(R_{1}\)  is the flat side, the formula becomes:
\(\frac{1}{f}= (n-1) * (\frac{-1}{R_{2} } )\)
As a result, to find the radius of curvature of the other side \(R_{2}\) , we can rearrange the formula:
\(R_{2}  = - (n-1) * f\)
In a lens with one side flat, the radius of curvature of the other side must be equal to the product of the focal length (f) and the difference between the refractive index of the lens material (n) and 1.

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According to the question **Effect of the Sun shrinking on Earth's orbit.**

The length of a year would **decrease to 1/100 as long** if the Sun shrunk from its current diameter to 1/10 its current diameter while maintaining the same mass. This decrease in the Sun's diameter would result in a decrease in the gravitational pull experienced by the Earth, leading to a reduction in the orbital period.

According to Kepler's third law of planetary motion, the square of a planet's orbital period is proportional to the cube of its average distance from the Sun. As the Sun's diameter decreases, the average distance between the Sun and the Earth would remain relatively unchanged. Therefore, with a smaller diameter, the gravitational force exerted by the Sun on the Earth would be weaker, causing the Earth to orbit at a faster rate.

Hence, the length of a year would decrease significantly, becoming approximately 1/100 as long compared to its original duration.

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Answer:

dang, you are really trying to get everyone to do your heavy lifting lol.

I'll do coal. and maybe a little more.

Explanation:

Coal What is it?

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen.

Coal How we obtain it:

Coal can be extracted from the earth either by surface mining or underground mining. Once coal has been extracted, it can be used directly (for heating and industrial processes) or to fuel power plants for electricity. If coal is less than 61 meters (200 feet) underground, it can be extracted through surface mining.

Coal Pros:

Coal is plentiful in many places and it is easy to access through mining, so people rely on it to produce energy. Coal is easy to store. Once it is mined it can be safely stored with no hazard of fire or explosion like there is with gas or oil. It is relatively easy and inexpensive to convert coal into energy.

Coal Cons:

Coal is nonrenewable.  Coal contains the most CO2 per BTU, the largest contributor to global warming.  Severe environmental, social, and health, and safety impacts of coal mining.  The devastation of the environment around coal mines is heavy.  High cost of transporting coal to centralized power plants. Coal is really dirty and not good.

__________________________________________________________

Solar What is it?

Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.

Solar How we obtain it:

Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

Solar Pros:

It's clean energy. Solar power is pollution-free and causes no greenhouse gases to be emitted after installation.  It has reduced dependence on foreign oil and fossil fuels.  It is renewable clean power that is available every day of the year, even cloudy days produce some power.  It gives a return on investment unlike paying for utility bills.

Solar Cons:

Solar doesn't work at night. Solar panels are not attractive. You can't install a home solar system yourself. My roof isn't right for solar. Solar hurts the environment. Not all solar panels are high quality.

A normal good has an Income Elasticity > 0

A measure of the economic responsiveness of the quantity of an item or service demanded to a change in income is called income elasticity of demand. The percentage change in quantity demanded divided by the percentage change in income is the formula for determining the income elasticity of demand.

The income elasticity of demand is categorised into three groups based on numerical value as follows:

Demand elasticity of income that is favorable

demand elasticity of income that is negative

There is no demand elasticity of income.

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The income elasticity of demand measures how sensitive the quantity demanded of a good is to changes in income. It helps us understand whether a good is a normal good, inferior good, or luxury good.

To calculate the income elasticity of demand, we can use the following formula:
Income Elasticity of Demand = (Percentage change in quantity demanded) / (Percentage change in income)

In this case, the percentage change in income is given as 23 percent, and the percentage change in consumption of farm goods is 0.4 percent.

Using the formula, we can calculate the income elasticity of demand for farm goods:

Income Elasticity of Demand = (0.4 percent) / (23 percent)

Simplifying this expression, we have:

Income Elasticity of Demand = 0.4 / 23

This yields a value of approximately 0.017, or 0.017%.

Since the income elasticity of demand is a positive but small value (less than 1), we can conclude that farm goods are a necessity or a normal good. This means that as consumers' incomes increase, the quantity demanded of farm goods increases, but at a relatively smaller rate compared to the income change.

It's important to note that the income elasticity of demand can also be negative. A negative value would indicate that the good is an inferior good, meaning that as consumers' incomes increase, the quantity demanded of the good decreases. However, in this case, the income elasticity of demand is positive, indicating that farm goods are a normal good.

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The reason padded dashboards are used in cars is that they a.) change the impulse in a collision. Therefore option a) is correct.

Padded dashboards make automobiles safer as they increase the time taken to decrease the momentum of impacting body to zero, which also decreases the impact. Therefore, force acting on the padded dashboards is small.

If the driver or passenger hits the dashboard, then the force and time required to stop the momentum is exerted by the dashboard. Padded dashboards serve to extend the time duration of the impact, hence minimizing the effect of the force.

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Answer:

73.34 mph to 2dp

Explanation:

veolcity = distance/ time

55 / 0.75 = 73.34 mph

The special theory of relativity predicts that fast-moving objects will appear to be shorter along the direction of motion than when they are seen at rest. Option B is the correct answer.

According to Einstein's theory, an item contracts more in the direction of motion the quicker it moves. This effect is not perceptible in our ordinary experiences since it is only perceptible at speeds that are a considerable fraction of the speed of light. Option B is the correct answer.

A fundamental theory of physics known as the special theory of relativity describes how the rules of physics apply to things moving quickly. The most well-known prediction of the theory is that no matter how quickly the observer is travelling in relation to the light source, the speed of light stays constant in all reference frames. Numerous tests have verified this prediction, which is now regarded as one of the foundations of contemporary science.

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The complete question is, "The special theory of relativity predicts that fast-moving objects will appear to be ______than when they are seen at rest:

a. fatter

b. shorter along the direction of motion

c. stretched out along the direction of motion

d. older

e. less massive"

Answer:

a weak interaction between particles the result from mass

Answer:

300 Pa

Explanation:

P=F/A

= 900/3

= 300 Pa

Answer:

If the light were incident upon two polarizers at right angles, no light would get thru - thus each polarizer must block 50% of the light.

One polarizer would allow 50% of the light to pass.

Answer:

the planet that is closest to the sun.

Assuming a flat ground, and  football thrown or dropped from the same height, the horizontally-thrown ball will hit the ground with the same vertical velocity as the dropped ball, but it will have most of its initial horizontal velocity, too. A simple vector addition, guarantees that that the horizontally-thrown ball will have a larger total velocity than the dropped ball.

What is Velocity.

Velocity is the directional velocity of a moving object as an indicator of the rate of change of position observed from a particular frame of reference and measured at a particular time standard.

Therefore, A simple vector addition, guarantees that that the horizontally-thrown ball will have a larger total velocity than the dropped ball.

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The light intensity from  largest to smallest ranking will be  :B > D > A=C > E. where the area is measured on the plane perpendicular to the direction .

In physics, the intensity is the amount of energy that is transmitted per unit area, and the area is measured on a plane perpendicular to the direction that the energy equation will propagate. I = P/ 4(d2), with P denoting power. Let power of 1 bulb equal = P where I = intensity, d = distance at which the intensity must be determined.

case A = I =  P / (1) (1) 1 = P case with 2 = P In the situation B = I = 2P/(0.5)2 = 8P C = I = 4P / (2) (2) ^2 = P case Case (1)2 = 3P: D = I = 3P E = I = 2P /(1.5) (1.5) ^2 = 0.8 P

B > D > A=C > E will be the order of light intensity, from greatest to least.

rank the light intensity, from largest to smallest, at the point p in the figures?

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The correct answers are a, d, f, g, and h. The net work done on particle 1 by the field is zero because the electric field is uniform, so the electric force acting on particle 1 is constant.

Coulomb force is an electrostatic force of attraction or repulsion between two particles that have an electric charge. It is proportional to the product of the charges and inversely proportional to the square of the distance between them.

The Coulomb force exerted on both particles by the source of the E-field increases as they move from start to finish, but the electrical potential energy of particle 2 does not change from start to finish. The E-field at point A when particle 1 is at point A has less magnitude than the E-field at point C when particle 2 is at point C because the magnitude of the electric field decreases with distance from the source. Both particles are at rest when they reach points A and C respectively, and both particles move through the same potential difference from start to finish. Lastly, the Coulomb force exerted on particle 2 by the source of the E-field is larger in magnitude than the Coulomb force exerted on particle 1 by the source of the E-field since particle 2 is closer to the source of the electric field.

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Answer:

Explanation:

The volume of the chess can be found by using the formula

volume = final volume of water - initial volume of water

From the question

final volume of water = 43 mL

initial volume of water = 35 mL

We have

volume = 43ml - 35ml = 8 mL

We have the final answer as

Hope this helps you

The true statement about the reference point for determining motion is that "it is stationary"

WHAT IS A REFERENCE POINT:

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The angular acceleration \(α_OB\)  of link OB is 272.28 rad/s² counterclockwise.

Given the constant extension rate (\(v_A\)) of the hydraulic rod is 3.9 m/s, and the dimensions are as follows:

1. Angle between OB and horizontal: 15°
2. Length of OB: 530 mm
3. Distance from O to A: 185 mm
4. Distance from A to B: 105 mm

To determine the angular acceleration \(α_OB\)  of link OB, follow these steps:

Step 1: Convert all given dimensions to meters.
- Length of OB: 0.530 m
- Distance from O to A: 0.185 m
- Distance from A to B: 0.105 m

Step 2: Calculate the velocity (\(v_B\)) of point B using the given velocity (\(v_A\)) of point A.
\(v_B\) = (\(v_A\) * distance from O to A) / distance from A to B
\(v_B\) = (3.9 m/s * 0.185 m) / 0.105 m
\(v_B\)= 6.87 m/s

Step 3: Calculate the angular velocity (\(ω_OB\)) of link OB.
\(ω_OB\) = \(v_B\) / length of OB
\(ω_OB\) = 6.87 m/s / 0.530 m
\(ω_OB\) = 12.96 rad/s

Step 4: Determine the tangential acceleration (\(a_B\)) of point B.
\(a_B\)= \(v_A^2\) / distance from A to B
\(a_B\) =\((3.9 m/s)^2\) / 0.105 m
\(a_B\)= 144.21 m/s²

Step 5: Calculate the angular acceleration (\(α_OB\)) of link OB using the tangential acceleration (\(a_B\)).
\(α_OB\) =\(a_B\) / length of OB
\(α_OB\) = 144.21 m/s² / 0.530 m
\(α_OB\)= 272.28 rad/s² (counterclockwise, since the given information implies counterclockwise rotation)

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The correct answer choice from above about schizophrenia among the choices given above is:

People with schizophrenia are often misdiagnosed as having dissociative identity disorder.

The correct answer choice simply is option a.

Patients with schizophrenia can sometimes or oftentimes be misdiagnosed as having a bipolar disorder simply because they also demonstrate or manifest some psychotic symptoms which is similar to that which is seen in patients with this dissociative disorder. However, this is a serious health condition which should be taken care of with patients suffering from this health condition.

In addition to the said information above, it is very important that a healthcare professional diagnose a patient accurately of a particular condition so that wrong treatment would not be given or administered.

In conclusion, it can be deduced from all said and done above that schizophrenia are sometimes mislikened to a bipolar disorder.

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When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through the bulb, we can calculate the resistance of the bulb using Ohm's Law. Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

To find the resistance, we can rearrange Ohm's Law equation (V = IR) to solve for R, where V is the voltage, I is the current, and R is the resistance.

First, let's plug in the given values:

V = 9.0 V (voltage)
I = 0.1 A (current)

Now, we can rearrange the equation to solve for R:

R = V / I

Substituting the given values:

R = 9.0 V / 0.1 A

Dividing 9.0 V by 0.1 A, we get:

R = 90 ohms

Therefore, the resistance of the bulb is 90 ohms.

In summary, when a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

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Answer:

If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. Kinetic energy can be passed from one object to another in the form of a collision....What happen to the kinetic energy of its velocity become double ? The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed is called its kinetic energy. Hence, when velocity is doubled, kinetic energy becomes 4 times.

Explanation:

Answer: It increases by four times

Explanation: If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. Kinetic energy can be passed from one object to another in the form of a collision.

Answer:

v = 1.5 [m/s]

Explanation:

This problem can be solved using the definition of velocity which is the relationship between space and time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]

Answer:time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]

Explanation:time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]