ello please show all work
and solutions, formulas etc. please try yo answer asap for huge
thumbs up!
3. A 500 nm photon knocks an electron from a metal plate giving it a speed of 2.8 x 10 m/s. Calculate the 192 work function of the metal in eV. [et] sals 10 sunt t [K3] T Ji no gnillst noitsiben lls e

Answer:

the magnetic dipole moment caused by orbiting electrons

Explanation:

The average net force exerted on the car and riders by the magnets is 3.53 x 10⁴ N.

The Magic Mountain Superman amusement park ride uses powerful magnets to accelerate a car and its riders from rest to 45.00 m/s in a time of 7 seconds. To find the average net force exerted on the car and riders by the magnets, we can use the formula:

F = ma,

where F is the force, m is the mass of the object, and a is the acceleration of the object. We can find the acceleration using the formula:

a = (vf - vi) / t,

where vf is the final velocity, vi is the initial velocity (which is 0 m/s), and t is the time it takes to reach vf. So:

a = (45.00 m/s - 0 m/s) / 7 s = 6.43 m/s²To find the force, we can plug in the values:

F = (5.50 x 10³ kg) x (6.43 m/s²)F = 3.53 x 10⁴ N.

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Angular velocity is the measure of the change in angular displacement per unit of time. It is usually measured in radians per second. One revolution is equal to 2π radians.

Therefore, to find the angular velocity of a tornado, we need to calculate the number of revolutions per second. Here is how we can do it: Given, diameter of the tornado, d = 54.0 m Radius, r = d/2 = 54.0/2 = 27.0 m

Winds carried by the tornado, v = 100 km/h

v = 100000/3600

v = 27.78 m/s

Angular velocity, ω = v/r The angular velocity of the tornado is given by: ω = v/rω

ω = 27.78/27.0

ω = 1.0278 radians/second

To find the number of revolutions per second, we need to divide the angular velocity by 2π.ω = 1.0278/2π revolutions per second (approx 0.163 revolutions per second)

Therefore, the angular velocity of the tornado in revolutions per second is approximately 0.163 revolutions per second.

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Answer:

The balloon will continue to expand and eventually burst.

Explanation:

Simply, the reason for this is because the density of the atmosphere decreases gradually as you increase in altitude closer to space. This means that the air on the outside of the balloon can't provide enough pressure over the surface of the balloon in order to counteract the gas on the inside of the balloon from expanding.

The tool used to measure automatic preferences such as one's attitude towards different groups is called the Implicit Association Test (IAT). This tool measures psychology the strength of associations between mental representations of objects in memory.

The IAT assesses implicit biases that may not be consciously recognized or acknowledged by individuals. It is a widely used tool in social psychology research to understand the underlying attitudes and biases that people may have towards different social groups such as race, gender, and sexual orientation. The IAT involves categorizing various stimuli such as words or images into different categories as quickly as possible, which can reveal the strength of an individual's associations and biases. While the IAT is not without controversy and limitations, it remains a valuable tool for understanding automatic preferences and biases that may influence behavior and decision-making in subtle ways.

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A drag car starts down a drag strip. If it can accelerate constantly at 17 m/s squared, then its speed after 5 seconds would be 85 meters/second.

There are three equations of motion given by  Newton,

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

v = u + at

  = 0 + 17×5

  = 85 m/s

S = ut + 1/2at²

200 = 0 + 0.5×5×t²

2.5t² = 200

t² = 200 / 2.5

t = 8.944 seconds

Thus, the speed of the car after 5 seconds would be 85 m/s and it would take 8.944 seconds to clear a 200-meter drag strip.

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Answer:  \(\dfrac{d-0.5at^2}{t}=v_i\)

Explanation:

\(d=v_it+0.5at^2\\\\\\\text{Subtract}\ 0.5at^2\ \text {from both sides:}\\d-0.5at^2=v_it\\\\\\\text{Divide both sides by t:}\\\dfrac{d-0.5at^2}{t}=v_i\)

Calculation of moisture content. Calculate the moisture content on a wet-weight basis using the following formula: Moisture content (%) = W2 - W3 x 100 W2-W1. where, W1 = weight of container with lid; W2 = weight of container with lid and sample before drying; and W3 = weight of container with lid and sample after drying.

The melting point of a substance is the temperature at which the substance changes its phase from solid to liquid.

The freezing point is the temperature at which the substance changes its phase from liquid to solid.

The melting point of a substance is the same as the freezing point. That is when the temperature of the substance in the liquid form is increased continuously, the temperature at which the substance turns into a solid is equal to the temperature at which the substance will turn into liquid from solid if the temperature is decreased continuously, from a higher temperature.

The sum of all resistances in the series circuit is known as Equivalent resistance.

where R is the equivalent resistance.

Hence, option 1 is the correct answer.

Answer:

no

Explanation:

the equation can't be balanced because it doesn't have the same elements on each side of the equal sign.

The given equation is not a balanced chemical equation because it does not contain the same elements on both sides of the equation.

A chemical equation can be explained as the representation of a chemical reaction in terms of symbols of the substances. A balanced equation containing the same number of atoms of each element on either side of the equation.

The law of mass conservation is followed by every balanced chemical equation. By obeying this law, the total mass on the reactant side should be equal to the total mass on the product side in a balanced equation.

On both sides of the chemical equation, the same elements as well as an equal number of elements are present as the chemical reaction does not alter the identity of the elements. Therefore, the given equation is not a balanced chemical equation.

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The number of sets of measures that a within-subjects F-test will accommodate depends on the specific design and factors involved in the study.

The within-subjects F-test, also known as repeated measures ANOVA (Analysis of Variance), is used to analyze the effects of one or more independent variables on a dependent variable measured on the same subjects over multiple conditions or time points. In a within-subjects design, each participant or subject undergoes all levels or conditions of the independent variable(s). The number of sets of measures is determined by the number of levels or conditions of the independent variable(s) being studied. For example, if there are two independent variables, each with three levels, and all participants are measured in each combination of levels, then there would be six sets of measures (2 * 3 = 6). Each set would consist of measurements taken on the same subjects under a specific combination of conditions.

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Answer:

astronomical units hope this helps

The temperature and brightness of stars are indicated by their spectra.

Spectrum is a band of colors, produced by separation of the components of light by their different degrees of refraction, and formed by a rainbow or by diffraction grating. This band of colors can be analyzed by a spectroscope, which is a device used to separate and measure the colors (wavelengths) of light.Spectroscopy is a scientific discipline concerned with the interaction between matter and radiated energy. Astronomers employ spectroscopy to study celestial objects, such as stars and galaxies.

The spectra of stars can tell astronomers the following information:

Composition of the star, which includes information on the elements present, such as hydrogen, helium, and carbon. The star's temperature, which provides information about the star's internal structure and its overall chemical makeup. The star's radial velocity, which is how fast the star is moving towards or away from Earth. The presence of any additional objects that are associated with the star, such as planets, asteroids, or other stars.

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The acetate compounds in the citric acid cycle are high‑energy compounds or transfer chemical energy.

What is citric acid cycle?

The Krebs cycle, sometimes referred to as the TCA cycle or the citric acid cycle, is a series of chemical processes that take place in the mitochondria and are essential for aerobic respiration, which is a process used by practically all living things to produce energy. Water and carbon dioxide are produced as byproducts while oxygen is used. ADP is turned into ATP in this location.

What is chemical energy?

chemical dynamism, Chemical bonds within substances contain energy. Exothermic chemical reactions are those that release chemical energy during the process, frequently in the form of heat. Some of the heat energy that is used to drive reactions that need to be heated up for them to continue may be stored as chemical energy in newly formed bonds.

The citric acid cycle's oxidation of acetate has a high phosphoryl transfer potential and generates a sizable amount of chemical energy. Coenzyme-derived reduced hydrogen atoms are given to the respiratory chain by the cycle's oxidative reactions.

Therefore, acetate compounds in the citric acid cycle are high‑energy compounds or transfer chemical energy.

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Answer:

acceleration = 0.2 m/s/s

Explanation:

initial velocity u = 14

final velocity v = 20

time = 30

acceleration = ?

v = u + at

20 = 14 + 30a

30a = 6

a = 0.2 m/s/s

Answer:

For the aceleration we have:

V = Vi + a * t

Being:

V = 20 m/s

Vi = 14 m/s

a = ?

t = 30 s

Then, lets replace acording the formula:

20 m/s = 14 m/s + a * 30 s

Clear "a":

a = (20 m/s - 14 m/s) / 30 s

a = (6 m/s) / 30 s

a = 0,2 m/s²

The aceleration of the car is 0,2 meters per second squared.

if a pizza radiates more energy than it absorbs, its temperature will decrease, hence option C is correct.

The temperature of a substance radiates energy without also absorbing it as it cools.

The amount of energy stored in a solid item reduces if it radiates more energy than it absorbs, which results in a fall in the object's temperature.

Therefore, the temperature of the pizza will decrease, if it radiates more energy than it absorbs, hence option C is correct.

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decrease yeah free 100 percent

A) The force that has no moment about the pivot is the force that acts directly at the pivot point. In this case, it is force F3.

B) To calculate the moment of a force about a pivot, we need to multiply the force by the perpendicular distance from the pivot to the line of action of the force.

- The moment of force F1 about the pivot is:
Moment = F1 × d1
= 6 N × 0.15 m
= 0.9 Nm

- The moment of force F2 about the pivot is:
Moment = F2 × d2
= 4 N × 0.35 m
= 1.4 Nm

C) The ruler will not turn as it is in a state of equilibrium. The moments of the two clockwise forces (F1 and F2) are balanced by the moment of the anticlockwise force (F3). Therefore, the total moment about the pivot is zero, which means that the ruler will not turn.



In this problem, we are given a uniform metre ruler that is balanced on a pivot and acted upon by three forces. We are asked to determine which force has no moment about the pivot, calculate the moments of the other two forces about the pivot, and explain whether the ruler will turn or not.

To answer the first part of the question, we need to recall that the moment of a force about a pivot is defined as the product of the force and the perpendicular distance from the pivot to the line of action of the force. Therefore, the force that acts directly at the pivot point will have a perpendicular distance of zero, which means that it will have no moment about the pivot. In this case, force F3 acts directly at the pivot point, so it has no moment about the pivot.

Next, we need to calculate the moments of the other two forces about the pivot. To do this, we multiply each force by its perpendicular distance from the pivot. Force F1 acts at a distance of 0.15 m from the pivot, while force F2 acts at a distance of 0.35 m from the pivot. Therefore, the moment of force F1 about the pivot is 0.9 Nm, and the moment of force F2 about the pivot is 1.4 Nm.

Finally, we need to determine whether the ruler will turn or not. For the ruler to be in a state of equilibrium, the total moment about the pivot must be zero. In this case, the moments of the two clockwise forces (F1 and F2) are balanced by the moment of the anticlockwise force (F3), so the total moment about the pivot is zero. Therefore, the ruler will not turn.

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Answer:

1. The magnetic pole is the region at each end of a magnet where the external magnetic field is the strongest.

2. magnetic line of force - a line of force in a magnetic field. field line, line of force - an imaginary line in a field of force; direction of the line at any point in the direction of the force

Explanation:

Answer:

B. A dish of water is placed in the freezer and turns solid

Explanation:

it is a physical change because it can return to its original state by physical means. the other options are chemical changes because things like color change, bubbles or fizzing, and odor change all indicate a chemical change and cannot return to the original state it was in before.

White light (containing all visible colors) passes through a gas that absorbs some of the light, the spectrum is then analyzed.

That spectrum best be described as a spectrum that is continuous except for few black lines.

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A 0.240-kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball.we cannot determine the mass of the second ball with the given information.

To solve this problem, we can apply the principles of conservation of momentum and conservation of kinetic energy.

Let's assume:

m1 = mass of the first ball (0.240 kg)

v1 = velocity of the first ball before the collision (unknown)

m2 = mass of the second ball (unknown)

v2 = velocity of the second ball after the collision (0.5 * v1)

Conservation of momentum:

The total momentum before the collision is equal to the total momentum after the collision.

m1 * v1_initial + m2 * 0 = m1 * v1_final + m2 * v2_final

Conservation of kinetic energy:

The total kinetic energy before the collision is equal to the total kinetic energy after the collision.

(1/2) * m1 * v1_initial^2 + (1/2) * m2 * 0 = (1/2) * m1 * v1_final^2 + (1/2) * m2 * v2_final^2

Since the second ball is initially at rest (v2 = 0), we can simplify the equations:

Conservation of momentum:

m1 * v1_initial = m1 * v1_final

Conservation of kinetic energy:

(1/2) * m1 * v1_initial^2 = (1/2) * m1 * v1_final^2 + (1/2) * m2 * 0

Now we can solve for v1_initial and v1_final:

From the conservation of momentum:

v1_initial = v1_final

From the conservation of kinetic energy:

(1/2) * m1 * v1_initial^2 = (1/2) * m1 * v1_initial^2 + (1/2) * m2 * 0

This equation simplifies to:

0 = (1/2) * m2 * 0

Since m2 * 0 is equal to zero, this equation doesn't provide any information about m2.

Therefore, we cannot determine the mass of the second ball with the given information.

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Answer:

14) Reactant

15) 1 .Precipitation reaction equation

16) The coefficient

17)  6.6242 × 10²⁴ atoms of oxygen

18) The product

20) The four states of matter are;

a) Solids

b) Liquids

3) Gas

4) Plasma

21) The total number of atoms in the product is 2.7099 × 10²⁵ atoms.

Explanation:

14) The left side of the chemical equation is the reactant

15) The coefficient is the number in font of the formula, here, the coefficient of the reactant C₁₂H₂₂O₁₁ is 1 .This is a precipitation reaction equation

16) The number 11 in front of the formula, H₂O, is called a coefficient

17) On mole of a substance is defined as containing one Avogadro's number, \(N_A\) of molecules

\(N_A\) ≈ 6.022 × 10²³ mol⁻¹

In the reactant, C₁₂H₂₂O₁₁, there are 11 elements of oxygen in one mole of the reactants, which gives 11 × 6.022 × 10²³ = 6.6242 × 10²⁴ atoms of oxygen in one mole of the reactants

18) The right side of the chemical equation is called the product

20) The four states of matter are;

a) Solids

b) Liquids

3) Gas

4) Plasma

21) The number of elements on the product side are;

12 Carbon  + 22 Hydrogen + 11 Oxygen = 45 Elements total

However, given that there are 12 moles of carbon, we have;

12 × 6.02 × 10²³ = 7.2264 × 10²⁴ atoms of carbon

For hydrogen, we have;

22 × 6.02 × 10²³ = 1.32484 × 10²⁵ atoms of hydrogen

For oxygen, we have;

11 × 6.02 × 10²³ = 6.6242 × 10²⁴ atoms of oxygen

The total number of atoms in the product is 7.2264 × 10²⁴ + 1.32484 × 10²⁵ + 6.6242 × 10²⁴ = 2.7099 × 10²⁵ atoms.

The stability of an air mass can usually be determined by analyzing the vertical temperature profile and lapse rate within the air mass.

If the temperature decreases at a slower rate with increasing altitude (a condition known as a stable lapse rate), the air mass tends to be stable. This means that the air parcels within the mass have a tendency to resist vertical movement and remain in their current positions.

On the other hand, if the temperature decreases at a faster rate with increasing altitude (an unstable lapse rate), the air mass is more likely to be unstable. In this case, the air parcels are prone to rise rapidly, leading to the formation of clouds, precipitation, and potentially severe weather conditions.

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The stability of an air mass depends on its temperature, humidity, and the temperature gradient with the surface beneath it. Stable air masses are generally cool and dry while unstable ones are moist and warm.

The stability of an air mass can usually be determined by its temperature and its humidity. An air mass is considered stable if it's cool and dry, because these conditions discourage rising air currents and the formation of clouds and precipitation. Conversely, an unstable air mass is moist and warm because these conditions encourage ascending air and the formation of clouds and storms.

Another determining factor is the temperature gradient (difference in temperature) between the air mass and the surface underneath it. If the air mass is cooler than the surface, it is typically stable. If the air mass is warmer, it's usually unstable. Thus, the stability of an air mass is determined by temperature, humidity, and the temperature gradient with the surface below.

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Answer:

I can't really see it sorry

Answer: False.

Explanation:

Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This increase happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

Hope this helps :)

Answer:

C3H6OH + 5O3 = 5CO2 + 6H3O

Explanation: