A docs.google.comClear selection((( Q3/ B))) : Find the value of (I total )for thecircuit shown.E=400Volts2ΚΩ2ΚΩ200mA400mA150mA100mALEAVE QUESTION 3?YES.NO.806KOO O O OO O

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Answered: (((Q3/ B))) : Find the value of (I…

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(((Q3/ B))) : Find the value of (I total )for the circuit shown. E=400Volts 2ΚΩ 2KO 200mA 400mA 150mA 100mA 6ΚΩ 2KQ

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 55P: The arc length formula says the length sof arc subtended by angle in a circle of radius r is given...

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The arc length formula says the length sof arc subtended by angle in a circle of radius r is given by the equation s=r . What are the dimensions of (a) s, (b) r , and (c) ?
The first atomic bomb was detonated on July 16, 1945, at the Trinity test site about 200 mi south of Los Alamos. In 1947, the U.S. government declassified a film reel of the explosion. From this film reel, British physicist G.I. Taylor was able to determine the rate at which the radius of the fireball from the blast grew. Using dimensional analysis, he was then able to deduce the amount of energy released in the explosion, which was a closely guarded secret at the time. Because of this, Taylor did not publish his results until 1950. This problem challenges you to recreate this famous calculation. (a) Using keen physical insight developed from years of experience, Taylor decided the radius rof the fireball should depend only on time since the explosion, t, the density of the air, , and the energy of the initial explosion, E. Thus, he made the educated guess that r=kEabtcfor some dimensionless constant kand some unknown exponents a,b, and c. Given that [E]=ML2T-2 , determine the values of the exponents necessary to make this equation dimensionally consistent. (Hint: Notice the equation implies that k=rEabtcand that [k]=1 ). (b) By analyzing data from high-energy conventional explosives, Taylor found the formula he derived seemed to be valid as long as the constant khad the value 1.03. From the film reel, he was able to determine many values of rand the corresponding values of t. For example, he found that after 25.0 ms, the fireball had a radius of 130.0 m. Use these values, along with an average air density of 1.25kg/m3 , to calculate the initial energy release of the Trinity detonation in joules (J). (Hint: To get energy in joules, you need to make sure all the numbers you substitute in are expressed in terms of SI base units.) (c) The energy released in large explosions is often cited in units of “tons of TNT” (abbreviated “t TNT”), where 1 t TNT is about 4.2 GJ. Convert yow answer to (b) into kilotons of TNT (that is, kt TNT). Compare your answer with the quick-and-duty estimate of 10 kt TNT made by physicist Enrico Fermi shortly after witnessing the explosion from what was thought to be a safe distance. (Reportedly, Fermi made his estimate by dropping some shredded bits of paper right before the remnants of the shock wave hit him and looked to see how far they were carried by it.)
A 11-inch candle is lit and burns at a constant rate of 1.3 inches per hour. Let t represent the number of hours since the candle was lit, and suppose R is a function such that R(t) represents the remaining length of the candle (in inches) t hours after it was lit. a. Write a function formula for R in terms of t. R(t)=11-1.3t Preview b. What is the domain of R relative to this context? Enter your answer as an interval. [0,8.46] Preview c. What is the range of R relative to this context? Enter your answer as an interval. Preview no answer given d. What is the domain of R¯ relative to this context? Enter your answer as an interval. |其 Preview e. What is the range of R1 relative to this context? Enter your answer as an interval. Preview f. Solve R(t) = 6.2 for t. t = 3.69 Preview g. What does your solution in part (f) represent in this context? Select all that apply. How many hours since the candle was lit when it is 6.2 inches long. * The length of the candle (in inches) 6.2 hours after…
pls helppp, I'll rate if you get the correct answer. NOTE: please put all the answers w/o rounding off, even if the answer is long. Ex. 1234.5678910 N
This was wrong. Can you solve this again with these numbers? What is the root mean square velocity, vrms, for Hydrogen molecules (H2) at 20oC? Hint: How many amu does an H2 molecule contain. 1 amu = 1.67 x 10-27 kg Boltzman's Constant, k = 1.38 x 10-23 J/K Give your answer in m/s to 4 significant figures (NO DECIMALS)
Hi. Pls explainn the solution step by step. Where the numbers came from
I don't understand this. why365.0g is significant figures? I think its effective number is 3, and why 362mL has 3 effective numbers. Isn't 362.0mL and 362mL the same thing?
d. A satisfactory radiograph is made using 30 mAs at 72 inches SID. How many mAs are needed to produce a similar radiograph at 84 inches SID? e. A satisfactory radiograph is made using 12 mAs at 40 inches SID. How many mAs are needed to produce a similar radiograph at 72 inches SID?
b): The patcutal 0.21 partile a abag the X-aris is Ulx)=822x" is Where Joules meters.2Iher is Dill be and the at Xelom, in in That acelention,
helppp, I'll rate if you get the correct answer. NOTE: please put all the answers w/o rounding off, even if the answer is long. Ex. 1234.5678901 N
Topic X PHYS X Topic x 2020 X W Coror X T Gene X Ay Manu X Ay 21. W X (21) V X (21) V X ь MyQ X ta The E X * ch 5 (21) E X i usq45tx.theexpertta.com/Common/TakeTutorialAssignment.aspx NP W. : Apps UTA Bookmarks ClassLink - My Apps Homework 6 Begin Date: 3/23/2020 4:00:00 PM -- Due Date: 4/3/2020 11:59:00 PM End Date: 4/6/2020 11:59:00 PM ta (6%) Problem 4: The thrust produced by a single jet engine creates a force of F = 52000 N. It takes the jet (with a mass of m = 5600 kg) a distance of d= 0.94 km to take off. Assignment Status Click here for detailed view Problem Status Completed Completed Completed 2 D * 50% Part (a) What is the take-off speed of the jet V; in m/s? Grade Summary Deductions Potential 4 Partial v; = 3% 5 97% sin() cos() tan() HOME Submissions Attempts remaining: 2 (3% per attempt) cotan() asin() acos() 4 atan() acotan() sinh() detailed view cosh() tanh() cotanh() 1 3% END 10 O Degrees O Radians VO BACKSPACE 11 DEL CLEAR 12 Submit Hint Feedback I give up! 13 14 Hints:…
eferences Mailings Tell me Review View La v AaBbCcDdEe AaBbCcDdE AaßbCcDdE E- Av Normal Title No Spacing 1. Number 0.02010 has how many significant figures? a. 2 b. 3 C. 4 d. 5 e. Could be 3 or 4. 2. Which of the following numbers is written in correct scientific notation? a. 56.4 x 102 b. 0.192 x 105 C. 2.34 x 10-34 d. 9.19 x 10-3.1 e. 8.29 x 10-3 3. When a ball is thrown vertically upwards in the air, acceleration the ball experiences: a. Increases. b. Decreases. C. Increases, and then decreases. d. Decreases, and then increases. e. Remains the same. 4. Two cars, A and B, travel in the same direction on a highway. At one moment, car A has a greater velocity than car B. This means at that moment: a. Acceleration of car A is greater than that of car B. b. Acceleration of car A is less than that of car B. c. Acceleration of both cars are equal. d. Only the magnitudes of the acceleration of both cars are equal. e. There is not enough information to draw any conclusions regarding…