QUESTION TWO: MEDICAL ISOTOPES lodine 131, written ¹1, is a radioactive isotope used in medicine. lodine 131 decays to Xenon (Xe) by emitting a beta particle. a. (i) What is a beta particle? (ii) Com

The wavelength of the radio waves from the Boston radio station with a frequency of 93.7 MHz is approximately 3.20 meters.

The wavelength of electromagnetic radiation can be calculated using the formula: wavelength = speed of light / frequency. The speed of light in a vacuum is approximately 3 × 10^8 meters per second.

To find the wavelength of the Boston radio station's broadcast at a frequency of 93.7 MHz (93.7 × 10^6 Hz), we can substitute the values into the formula:

wavelength = (3 × 10^8 m/s) / (93.7 × 10^6 Hz)

Calculating this expression gives us:

wavelength = 3.20 meters

Therefore, the wavelength of the electromagnetic radiation from the Boston radio station is approximately 3.20 meters.

This means that the radio waves emitted by the station have a physical length of 3.20 meters, and they propagate through space with this distance between consecutive wave crests. Understanding the wavelength is essential for various applications involving electromagnetic radiation, such as antenna design and signal propagation analysis.

Know more about frequency here:

https://brainly.com/question/254161

#SPJ8

pH of the solution is approximately 2 and pOH of the solution is 0. H₂SO₄ is a strong acid that ionizes completely in water. Its dissociation equation is:

H₂SO₄ → 2H⁺ + SO4²⁻

Since H₂SO₄ dissociates to produce two hydrogen ions (H⁺), the concentration of H⁺ in the solution will be double the initial concentration of H₂SO₄.

Given,

The initial concentration of H₂SO₄ = 0.005 M

The concentration of H⁺ ions will be 2 × 0.005 M = 0.01 M.

pH = -log[H⁺]

pH = -log(0.01) ≈ 2

pOH = -log[OH⁻]

Since H₂SO₄ is a strong acid, it does not produce hydroxide ions (OH⁻) upon dissociation. Therefore, the concentration of OH⁻ in the solution is negligible, and the pOH is essentially 0.

Learn more about pH, here:

https://brainly.com/question/2288405

#SPJ1

Answer:

the answer is adaptations

Explanation:

A body part or behavior that helps an animal meet its need in its environment is called an adaptation. All adaptions are inherited traits. Camouflage is an animal's color or pattern that help it blend in with its surroundings.

Answer:

5, the last would be incomplete

Explanation:

The first, inner cloud has 2 electrons, then 8, then 8, then 8, then 3.

Answer:

H2 and O2

Explanation:

A coffee cup calorimeter is basically a type of calorimeter that operates at constant pressure. The heat measured in the calorimeter is equal to the change in enthalpy of the reaction.

This type of calorimeter is apt for reactions involving solutions where there is little or no change in volume.

It is not generally applicable to gas phase reactions such as the reaction between H2 and O2.

Answer:

You will not measure the enthalpy of the reaction of

✔ H2 and O2

in the coffee cup calorimeter because this reaction involves gases. Instead, you will use a well-known published value.

C. H2 and O2

Is Correct

Answer:

Element.

Explanation:

Aluminum is an element because it is not separable into simpler substances. One thing important to keep in mind is that if something is on the Periodic Table of Elements, it is 100% an element.

Explanation:

Observing a chemical and physical change in a substance can provide several benefits, including:

Understanding the nature of the substance: By observing chemical and physical changes, we can understand the properties of a substance and how it behaves under different conditions. This can help us predict how it will react in different situations and can inform decisions about how to handle it safely.

Identifying the presence of impurities: Chemical and physical changes can also indicate the presence of impurities or contaminants in a substance. This can be important in many different fields, including medicine, manufacturing, and environmental science.

Optimizing processes: By understanding the chemical and physical changes that occur in a substance, we can optimize processes to produce the desired results more efficiently. This can lead to cost savings and improved quality control in industries ranging from food and beverage to pharmaceuticals.

Developing new materials: Observing chemical and physical changes can also help scientists and engineers develop new materials with specific properties or characteristics. By manipulating the conditions under which a substance undergoes chemical and physical changes, new materials can be created with improved performance and functionality.

The pH of a solution that is 0.10 M HF and 0.10 M NaF (the conjugate base) is given as follows:

pH is calculated as follows: [H+] = √(Ka × [acid])/[conjugate base][H+] = √(3.5 × 10⁻⁴ × 0.10)/0.10[H+] = 0.0187 M.

The pH is calculated using the following formula: pH = -log[H+]pH = -log(0.0187) pH = 1.73.

The pH of the given solution is 1.73.

In conclusion, the pH of a solution that is 0.10 M HF and 0.10 M NaF (the conjugate base) is 1.73.

To know more about pH visit:

https://brainly.com/question/2288405

#SPJ11

Answer:

All answers stated below:

Explanation:

1. Plate Tectonics

2. lithosphere

3. asthenosphere

4. divergent boundary

5. (not sure)

6. convergent

7. transform

8. convection

ANSWER

option D

EXPLANATION

When a full bag of trash is placed in a compactor, the compactor will compress the bag so as to allow more trash to fill in. This is done by increasing the capacity of the trash.

Therefore, the volume of the trash bag will changed

Hence, the correct answer is option D

Answer:

There would most likely be an overpopulation of the animals the wolfs ate.

Explanation:

Answer:

Many populations will grow way to much. Also others will drop in numbers drastically.

Explanation:

Due to the fact that wolves are predators, the prey they eat will grow 85% more. Now, 85% of the wolf population dies, that`s a lot of prey not eaten. Then the prey that are predators to other animals who are over hunted by their predators will most likely drop in numbers drastically, by I mean 85%. This will throw the ecosystem off so much, humans could be at grave risk.

The electron transport chain takes electrons from NADH and FADH2 and ultimately uses them to reduce oxygen into water.

The electron transport chain is a series of proteins and enzymes located in the inner mitochondrial membrane that plays a key role in oxidative phosphorylation, the process by which ATP is synthesized from ADP and inorganic phosphate.

The electron transport chain receives electrons from NADH and FADH2, which are produced during the breakdown of glucose and other nutrients, and uses them to pump protons from the mitochondrial matrix to the intermembrane space, creating an electrochemical gradient. This gradient is used by ATP synthase to drive the synthesis of ATP.

The final electron acceptor in the electron transport chain is oxygen, which is reduced to water by the transfer of electrons and protons. This process generates a large amount of energy that is used to power cellular processes.

To learn more about transport chain, click here:

https://brainly.com/question/24372542

#SPJ11

Answer: A. The wall push back on the ball with more force, which causes the return speed of the to increase.

Explanation: For every for exerted on an object, there is an equal force exerted in the opposite direction. When the ball hits the wall with more force, the wall pushes back on the ball with more force. This causes the return speed of the ball to increase. The force that the wall applies to the ball launches the ball in the opposite direction. The greater the force on the ball, the greater it’s speed becomes .

Answer: The wall pushes back on the ball with more force, which causes the return speed of the ball to increase.

Explanation: Correct on Study Island

Answer:

Explanation:

he gave you a virus, dont click it

Answer:

The name of the compound Cu(C2H3O2)2 is Copper(II) acetate.

In this name "Copper" refers to the element copper (Cu) and the "II" in parentheses refers to the oxidation state of copper which is +2. "Acetate" is the anion name of C2H3O2, which is the anion present in the compound.

The IUPAC name of the compound Cu(C\(_2\)H\(_3\)O\(_2\))\(_2\) is Copper(II) acetate. In this name, "Copper" means the chemical element copper (Cu), and the "II" in brackets stands for copper's +2 oxidation state.

Whether either an ongoing link or a ring, the greatest number of carbons joined by a single bond serves as the basis for IUPAC nomenclature. According to a certain set of priorities, any deviations, whether multiple bonds and atoms other than hydrogen and carbon, are denoted by prefixes or suffixes. In this name, "Copper" means the chemical element copper (Cu), and the "II" in brackets stands for copper's +2 oxidation state. The compound's anion, C\(_2\)H\(_3\)O\(_2\), is known by its anion name "acetate".

To know more about IUPAC, here:

https://brainly.com/question/16631447

#SPJ6

Answer: what question?

Explanation:

Answer:

theirs no question

Explanation:

no question or picture

Potassium acetate (KC₂H₃O₂) is the solubility curve represented by the letter C.

option B is the correct answer.

Solubility is the amount of solute that dissolves in a solvent. The solubility of most solutes increases with an increase in the temperature of the solvent.

From the given graph we can conclude that the solubility of the curve labelled C given corresponds to the solubility of potassium compound and we can conclude that the compound is

Thus, potassium acetate (KC₂H₃O₂) is the solubility curve represented by the letter C.

Learn more about solubility here: https://brainly.com/question/23946616

#SPJ1

the answer is 6.0°C that is the solution

Answer:

1) petroleum, mixture, not found on periodic table

2) hydrogen and helium, mixture, contains "and"

3) iron sulphide, compound, ends with "ide"

4) carbon dioxide, compound, ends with "ide"

5) salt water, mixture, not found on periodic table

6) milk and sugar, mixture, contains "and"

7) silver nitrate, compound, ends with "ate"

8) sodium carbonate, compound, ends with "ate"

9) carbon electrode, mixture, not found on periodic table

10) astatine, element, found on periodic table

11) argon, element, found on periodic table

12) oxidane, compound, contains "ane"

13) iron and sulphur, mixture, contains "and"

14) methane, compound, contains "ane"

Explanation:

Answer:

E = 3.81×10 ⁻²¹ J

Explanation:

Given data:

Frequency of photon = 5.75 ×10¹² Hz

Plancks constant = 6.626 ×10⁻³⁴ Js

Energy of photon = ?

Solution:

E = h×f

E = 6.626 ×10⁻³⁴ Js ×  5.75 ×10¹² s⁻¹

E = 38.1×10 ⁻²² J

E = 3.81×10 ⁻²¹ J

The ocean floor being featureless was the assumption was proved wrong after the invention of sonar.

This employs the use of sound propagation to measure the distance or presence of objects under the water.

This helped to show that the ocean floor had features such as canyons, mountains etc hence option B was chosen.

Read more about Sonar here https://brainly.com/question/14090821

#SPJ1

Answer:

0? because they didn't mention anything about that

The boiling point of ethanol on the Kelvin scale is (273.15+78.3) = 351.45 approximately.

International consensus establishes the ice point and steam point as the two fixed points that make up the Celsius temperature scale. The steam point is established at 100° Celsius, while the ice point is 0° Celsius.

The proportion of 1/273.15 of the thermodynamic temperature of water's triple point is the definition of a Kelvin. The Kelvin is also known as the thermodynamic temperature scale.

As a unit for a unit, both scales are connected. A change of one unit on the Kelvin scale corresponds to a change of one degree on the Celsius scale. These two scales are identical save from the thermometer zero points.

As a result, the conversion formula is: add 273.15 to convert degrees Celsius to Kelvin, and remove 273.15 to convert Kelvin to degrees Celsius.

Find out more about temperature scale

brainly.com/question/28938811

#SPJ4

The mass of  silver chloride (AgCl) required is 390mg when it contains 56.34 % ag by mass and 165 micrograms of Ag.

Given silver chloride contains (p1) = 56.34 % ag by mass

Then, 1 mole of AgCl contains 0.5634 moles of Ag

1 mole of Ag is obtained from 1/0.5634 mole of AgCl

The mass of silver (Ag) = m = 165mg = 165 x 10^-6g

The atomic mass of silver (M) = 107g/mole

Then the number of moles of Ag required (n) = 165/107 = 0.00154mole

Now 0.00154 mole of Ag is obtained from = 0.00154/0.5634 = 0.00273 moles of AgCl.

The molar mass of AgCl = 143g/mole

mass of AgCl required = moles x molar mass = 0.00273 x 143 = 0.390g

Hence the mass of AgCl required is 390mg

To learn more about AgCl click here https://brainly.com/question/17102479

#SPJ4

False: Natural resources are replaced through natural processes at a rate that is equal to or greater than the rate at which they are being used.

Natural resources are materials from the Earth that are used to support life and meet people's needs.

Any natural substance that humans use can be considered a natural resource.

Examples of natural resources include the following;

The process through which natural resources are removed from ground is called exploitation.

Natural resources such crude oil take millions of years to form, while human exploitations has increased exponentially with time, hence the rate at which exploitation takes place is greater than the rate at which the natural resources replenish.

Thus, the given statement about the rate at which natural resources are replenished through natural processes at a rate that is equal to or greater than the rate at which they are being used, is false.

Learn more about natural resources here: https://brainly.com/question/24514288

#SPJ1

The number of silver atoms does not change when time advances each second.

Silver atoms are indivisible units of matter, and they cannot be created or destroyed through ordinary chemical or physical processes. Therefore, the number of silver atoms in a given sample will remain constant over time, regardless of any changes in the conditions surrounding the sample.

In order for the number of silver atoms to change over time, there would need to be some kind of nuclear reaction or decay occurring within the sample. However, these processes are typically not relevant for most everyday scenarios involving silver.  In general, the number of atoms in a given sample of a substance will remain constant as long as the sample is not undergoing any kind of chemical or physical transformation. For example, if you have a piece of solid silver metal, the number of atoms in that piece will remain constant over time as long as the metal is not exposed to any external factors (such as heat, radiation, or chemical reactions) that could cause it to change form.

To know more about silver atoms visit;-

https://brainly.com/question/2742253

#SPJ11