The earths reflectivity is about 27%. What is the Earths "no greenhouse" temperature in Kelvin? Assume Earth is at a distance of 1 AU from the Sun.

Q: What are the similarities between magnetron and klystron

A: Magnetron It is a high-powered vacuum tube. It is a self-excited microwave oscillator. Klystron It…

Q: At the beginning of an experiment, a scientist has 268 grams of radioactive goo. After 180 minutes,…

A: Given, Initial mass = 268 grams  Final mass = 4.1875 grams time taken = 180 minutes

Q: How many half-lives would have to elapse for a sample of a radioactive isotope to decrease from an…

A: Half-life is the interval of time required for one-half of the atomic nuclei of a radioactive sample…

Q: nd 12 electrons

A: Answer If the atomic number of element (Z) is 12 Atomic mass(A) =25 No. of protons= No of…

Q: -2 Earth receives 341 watts m of incoming solar radiation. Of this, 79 watts m is reflected by…

A: The energy flow in the Earth system help in maintaining the balance between incoming and outgoing…

Q: he moons position among the stars was observed at moonrise. six hours and 12 min later the moon…

A: Moon is the natural satellite of the earth. Moon rotates around the earth. Its temperature is very…

Q: A 10.00 mg sample of technetium-93 (92.91024898 u) is used to heat 125.4 g o

A:

Q: If there is 10 μmol of the radioactive isotope 32P (half-life 14 days) at t = 0, how much 32P will…

A: In the process of radioactive decay, a radioactive unstable nucleus loses its energy by radiation.…

Q: Which types of radiation are ionizing?

A: Introduction: Radiation means the release or transfer of energy as a waves or particles by space.…

Q: Long-wave solar radiation is more energetic than short-wave solar radiation. True

A: There are two types of radiation depending on the wavelength. Long wave solar radiation: These waves…

Q: When warm summer temperatures set in and the surface of a lake reaches 200 Celsius, how much oxygen…

A: Dissolved oxygen It is the free, non compound oxygen present in water. It is vital for many life…

Q: Does a Snickers™ candy bar (65 g, 1360 kJ) pro-vide enough energy to climb from Zermatt (elevation…

A: Work is the energy transferred into the system or out of the system through the action of a force.…

Q: 14.9 g ice cube is placed into 332 g of water. Part A Calculate the temperature change in the water…

A: First, the heat absorbed by the melting ice needs to be determined. Molar mass of water= 18.015g/mol…

Q: Bastian created a dilution series with Blue #2 dye, similar to the one you will complete in Part C…

A: The concentration of a substance can be determined using spectrophotometry. The sample containing…

Q: come up with two illustrations of objects that exhibit patterns in nature and write a brief 3-5…

A: Objects in nature often exhibit patterns. It helps us to see the world around us more clearly. Here…

Q: a certain element consists of two stable isotopes. the first has a mass of 138 amu

A: Atoms of an element having same atomic number but different mass number are called isotopes of that…

Q: Enter the correct color for the visible light for each wavelength. 380-450 450-495 495-570…

A: Visible spectrum is that part of electromagnetic spectrum which is visible to human eye.

Q: The half-life of 1311 is 8.04 days. (a) Convert the half-life to seconds. (b) Calculate the decay…

A: Given Values: Half-Life of I131 = 8.02 days *Only the first three sub-parts are answered.

Q: Assume that you list the following types of electromagnetic radiation in order of increasing…

A: Radiation refers to the energy that travels and spreads as it moves. The waves of the…

Q: Which of the following types of photons (packets of pure electromagnetic energy) have the highest…

A: Radiation is both magnetic and electric fields that spread and travels in waves. Electromagnetic…

Q: Why are quantitative absorbance measurements made at lambda max?

A: Introduction :- Using spectrum of wavelength , different levels of absorption can be calculated. It…

Q: 2. Describe what needed to be done to each food sample, before it began to react on its own. (hint…

A: Food preservation is the act of preserving food in order to keep its best quality for a set period…

Q: If one of the planets in our solar system averages 0.723332 astronomical units from the sun, what is…

A: The objective of the question is to calculate the orbital period of a planet in our solar system…

Q: (2) Express the normal human body temperature, 37°C, and the sun's surface temperature, ~6000°C, in…

A: So, for converting the degrees celcius to the degrees fahrenheit, the formula used is    (x°C × 9/5)…

Q: What wavelength is most suitable for quantitative analyses for an analyte exhibiting the UV-Vis…

A: Quantitative analysis is the method of determination of concentration of an analyte where teh amount…

Q: What do these two tests indicate about the unknown molecule?

A: Test 1:  Test 1 indicates an isotropic signature called as "delta c thirteen" which is a measure of…

Q: Why are the elements found in the I=P x A x T important in terms of them having an impact to our…

A: Any organism cannot survive in isolation. It is surrounded by a number of biotic and abiotic…

Q: Time Absorbance  Concentration 60 0.223 0.0130 180 0.198 0.0115 300 0.206 0.0120 480 0.171 0.0099…

A: Enzyme kinetics is the field of biochemistry that enable us to determine the kinetic parameters of…

Q: Normal room temperature is about 74 degree. What is the equivalent temperature on the Celsius…

A: Temperature defines the direction of spontaneous heat flow between objects/systems. Heat flows from…

Q: Explain how the type of decay, the half life and the chemical properties make the following…

A: Asked : Type of decay, the half life and the chemical properties for the given application.

Q: What are the names of the elements that we can not analys

A: ICP-OES : Inductively coupled plasma-optical emission spectroscopy. It is an analytical technique…

Q: Young's double slit experiment is one of the quintessential experiments in physics. The availability…

A: To calculate the fringe separation between the second-order and central fringe in Young's…

Q: What were the independent, dependent, and controlled variables in this investigation? What type of…

A: In this research setup, there are various food samples and their weight according to the temperature…

Q: Star 1 is 18 light years from Star 2 and 34 light years from Earth. If Star 2 explodes as a…

A: when Star 1 is 18 light years from Star 2 and Star 1is 34 light years from Earth. that means the…

Q: Patient 1 received an accidental radiation dose of 0.343 J/kg from slow neutrons with RBE = 4.31.…

A: Patient 2 experienced a proton radiation dosage of 0.4090533642691416 J/kg. The radiation dosage…

Q: If one of the planets in our solar system averages 0.3871016 astronomical units from the sun, what…

A: The question is asking for the orbital period of a planet in our solar system. To solve this, we can…

Q: 14) Uranium-238 ( 92º) decays to form thorium-234 ( 90h) with a half-life of 4.5 x 10° years. How…

A: The half-life life of the uranium-238 takes 4.5×109 years to decay to form the thorium-234.

Q: - orbital speed of Mars in km/day

A: Orbital speed of Mars in km/day = 2 x π x orbital radius in km / time period in days

Q: 95.859 The mass of the object is 95.85 grams The weight of the object is 95.85 grams The mass of the…

A: There are several measurement instrument that are used in the laboratory to measure different types…

Q: What are some of the applications of Tc-99m? While harder to access, another radioactive isotope of…

A: As per the guidelines, we are allowed to do the first three subparts if more than three are given in…

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