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Description: Fill in the blanksa)- 1 attachment7. The motion of a particle starting from rest is governed by the a-t curve shownySketch the v-t and s-t curves. Determine the displacement at t=9 sec.a, fps126.

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a) - 1 attachment - 7. The motion of a particle starting from rest is governed by the a-t curve showny Sketch the v-t and s-t curves. Determine the displacement at t-9 sec. a, fps 12 6

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 82AP: (a) A car speedometer has a 5% uncertainty. What is the range of possible speeds when it reads 90...

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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 surveyor measures the distance across a straight river by the following method (Fig. P3.7). Starting directly across from a tree on the opposite bank, she walks d = 100 m along the riverbank to establish a baseline. Then she sights across to the tree. The angle from her baseline to the tree is = 35.0. How wide is the river?
Im having trouble figuring out the equations for this and could use some help.
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Can you help me, i need a shortcut on how to know when should i use cosine or sine.here's the problem and the solution One morning, Connie walks from her house to go to a store that is 500 ft, S 40o W from her house. She starts walking 120 ft, SW; then continues walking 100 ft, 10o S of E; then sees a friend who is 700 ft, 30o N of E from where she is. What is her friend’s location, (magnitude and direction) relative to her house? (Ans. 667.54 ft, 21.79o N of E) From her friend’s location, how far and in what direction should Connie walk to finally get to the store? (Ans. 1133.08 ft, 33.83o S of W)
Kindly give me a detailed answer in a clear handwriting of subpart ( d). I am attaching the full question but I only need (d). All the questions are related. I only have few minutes kindly give the ans ASAP. I will upvote if the answer is correct and answered soon. Thank you.
Kindly give me a detailed answer in a clear handwriting of subpart (b). I am attaching the full question but I only need (b). All the questions are related. I only have few minutes kindly give the ans ASAP. I will upvote if the answer is correct and answered soon. Thank you.
The answer is -1.0 can you please show me how to do it.
According to Timothy Treadwell in 2001 "Now, the bears I live with average, the males are on average twelve hundred pounds. They're the largest bears in the world and they've been clocked at 41 [mph] and they've run a hundred meter dash in 5.85 seconds which human on stimulants doesn't even approach. a. Compute the speed of a grizzly bear using Mr. Treadwell's hundred-meter statement. b. Compute the momentum of a grizzly bear using the speed you calculated in part a. and the average mass stated by Mr. Treadwell. c. How fast would a 250 lb man have to run to have the same momentum you calculated in part b? d. How fast would a 4000 lb car have to drive to have the same momentum you calculated in part b?
ard / My courses / Time left 0:47:28 4 Estimate the opening area of the aortic valve using Gorlin equation given the following: The cardiac output is 4887 mL/min, the heart rate is 1.65 beats/second, the ejection period is 0.33 seconds, and the mean gradient is measured is 6500 Pa. ut of O a. 29.016 cm^2 nestion O b. 0.069 cm^2 O c. 0.042 cm^2 O d. 0 cm^2 O e. 0.484 cm^2 O f. None of the given answers is true Next page
For the circvit shawn t2 =0.89 mA 5.68 B,-27.0 Kんこ Re =10.1 K Vz =85.63 Determire the Potchal acvOSS the souce Cin VJ 工 R, Re
1. The sum of the digits of a 2-digit number is 10. If the number is divided by theunits digit, the quotient is 3 and the remainder is 4. Find the number. 2. t took a certain vehicle 3 hours to travel a distance of 120 km. On its wayback, it took him only 2 hours in traveling the same path. What was his averagespeed?