What is the photon frequency (Terahertz = 1012 Hz) needed to move an electron in a hydrogen atom from a lower energy level n; = 2 to a higher energy level nf = 7? %3D (keep 3 decimal places)

Q: You have your ear against a new speaker when it emits a sounds with an intensity of 160 decibels

A: 1)Sounds below 70db don't cause any hearing damage.   2) Beyond 70db sounds isn't good for your ears…

Q: The wavelength (nm) for a photon with an energy of 2.706 electron-volts is

A: Given: Energy of the photon = 2.706 electron-volts. To determine: The wavelength of the photon.…

Q: Kevin scored at the 65th percentile on a test given to 9960 students. How many students scored lower…

A: # Given, Kevin scored at the 65th percentile on a test     given to 9960 students.     Number of…

Q: If X represents the result when a 12-sided die is rolled once. Determine ..___________________…

A: GIVEN DATA : A 12 sided doll is rolled once       TO FIND : If X represent the result then determine…

Q: What constant acceleration (in ft/s2) is required to increase the speed of a car from 30 mi/h to 58…

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Q: of ū at the poir 01

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Q: cose o3drde =? ans. はは 3一

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Q: Approximate to three decimal places usingNewton’s Method and compare with the value from a…

A: Put y=513 and use the newton's formula, xn+1=xn-f(xn)f'(xn) Here y=f(x) and solve the iterations…

Q: Approximate to three decimal places.

A: Approximate to three decimal places.  a csc 43°40'        b sec 0.26

Q: D Without o rodian measure of e if it exsists. calculator, giue the e = Sec-(-a)

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Question 1 Predict the shear strength in psi the age k 17 weeks. Round off your answer to the…

A: Given: Obs. no. Strength Age 1 2585 6.5 2 2367.9 13.3 3 2326 12.5 4 2287.9 18 5 2217.5…

Q: 4 2 To find the blue shaded area above, we would calculate: b. f(x)dx = area a

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Q: All edges of a cube are expanding at a rate of 8 centimeters per second. (a) How fast is the surface…

A: We have to find the rate of change of surface area.

Q: The minute hand of a clock is 6 inches long and moves from 12 to 4 o’clock. How far does the tip of…

A: The minute hand of a clock is 6 inches long and it moves from 12 to 4 in clock. A complete…

Q: If a sample of a certain solution is determined to have a H30*| concentration of 9.87 x 10-…

A: NOTE: Refresh your page if you can't see any equations. . here the given concentration is

Q: Use a calculator to evaluate sec(-114°). Round your answer to four decimal places.

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Q: al to). Average rainfall of a city from Monday to Saturday is 0.3 inch. Due to fce the rainfall on…

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Q: A measurement of the diameter of a disk has an uncertainty of 1.5 mm. How many measurements must be…

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Q: Evaluale the to 312 bwiny dx 12

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Q: The intensity of the sound from a certain leaf blower is measured at 31 × 10−2 W/m2. Find the…

A: Consider the formula:  D=10logII0,where, D is decibel level dB.I is the intensity of sound and I0 is…

Q: he acute an e first and se

A: Given that, Length of first leg = a = 10 ft Length of second leg = b = 24 ft Therefore the length of…

Q: A resistance of 10 ohms and inductance of 4 henry is connected in series with a 12 volts battery.…

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Q: An aluminium beam was brought from the outside cold into a machine shop where the temperature was…

A: Given:      T0 =  18  For t = 10 , T = 2  For t= 20 , T = 10

Q: Can you please help me get the result of e^k, thank you!

A: We can solve using reciprocal relationship of exponential. e^x=1/(e^-x).

Q: Compare the amount of earth movement (energy released) by earthquakes of magnitudes 8 and 9. (Round…

A: An earthquake of magnitude M release energy E is given by log10E=4.4+1.5M

Q: Find the approximation to 3/25 Correct to three decimal places

A: To find the approximation of the given number.

Q: 11) ſ csc(5t) cot(5t) dt

A: According to our guidelines we have do only one question. Kindly repost other question as the next…

Q: 2. For an earthquake that measures 6.0 on the Richter scale what is the amplitude of the energy…

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Q: -239 kJ what is the value in calorie?

A: Since  1 kJ = 0.239 kilo calorie

Q: A race car starts at a speed of 18.3 m/s and speeds up over a time period of 2.47 s. The car can…

A: Here we define velocity, distance and acceleration function then solve this problem.

Q: If e" = a find the value of cosh(x) for a = 7.515 to 3 decimal places.

A: we will use the formula for cosh(x) cosh(x)=ex+e-x2

Q: e of rain is forecast to be 20% each da

A: (As per Bartleby guidelines for more than one question asked only one is to be answered please…

Q: The de Broglie wavelength (in nanometer) for an electron moving with 9.24 x 10" m/s is:

A: We will find out the required value.

Q: The minute hand of a clock is 8 inches long and moves from 12 to 2 o’clock. How far does the tip of…

A: Given  Length of the minute hand of the clocks = 8 inches We know that the relation between length…

Q: What is the relationship of alpha when OA moves to OB

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Q: 33. The base x of the right triangle in Figure 14 increases at a rate of 5 cm/s, while the height…

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Q: During a polytropic process, the ideal gas changes state from 20 psia and 40 F to 116 psia and 338…

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Q: The ratio of carbon 14 to carbon 12 in a piece of wood discovered in a cave is R= 1/8^14. Estimate…

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Q: The current po population is t from now.

A: Given: The current population of a certain bacteria is 1936 organisms. It is believed that…

Q: QUESTION 4 Differentiate a) e8xcosx b) lnx sinx

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Q: Which of these would be an appropriate unit to describe the rate at which the temperature changes as…

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Q: oliviot 16. Fill in the blanks in the portion of life table given below: Tx Age in years Ix dx Px Lx…

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Q: What is the approximate value of x in the diagram below

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Q: The inductive reactance (in ohms) of a 0.06 H coil connected to a 120-V, 60-Hz source is Blank 1.…

A: Answr-22.619 Ohms

Q: Each second, a star converts 1.3 × 10° tons of hydrogen into helium and energy in the form of gamma…

A: Introduction: The phrase "standard form" is used to describe the typical shape of a variety of…

Q: The wavelength (nm) for a photon with an energy of 2.947 electron-volts is:

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Q: It takes 10 minutes for a 100° C object to cool to 750 C in a room at 30° C. How much longer will it…

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Q: Two cars are moving towards an intersection. One car is 150 meters north of the intersection and…

A: Note: We are entitled to solve only one question at a time. As the specified one is not mentioned,…

Q: A certain illness is spreading at a rate of 10% per hour. How long will it take to spread to 1200…

A: Assuming exponential growth    31.1t=1200

Q: 36) sec 4

A: We have to evaluate sec3π4. We know that secπ2+θ=-cscθ Therefore, sec3π4=secπ2+π4=-cscπ4=-2