3. A pendulum is timed, first for 20 swings and then for 50 swings: Time for 20 swings = 17.6 s Time for 50 swings = 42.7 s a. Calculate the average time per swing in each case. (Complete with calculation, answer and unit) b. The answers are slightly different suggest some possible experimental reason for this (1 reason)

3. A pendulum is timed, first for 20 swings and then for 50 swings: Time for 20 swings = 17.6 s Time for 50 swings = 42.7 s a. Calculate the average time per swing in each case. (Complete with calculation, answer and unit) b. The answers are slightly different suggest some possible experimental reason for this (1 reason)

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 81AP: Consider the equation s=s0+v0t+a0t2/2+j0t3/6+s0t4/24+ct5/120 , were s is a length and t is a time....

See similar textbooks

Similar questions

1%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. II
1. a). A value of the acceleration of free fail g was determined by measuring the periodof oscillation T of a simple pendulum of length l. The relation between g, T andl is given by: g= 4π (l /T2) In the experiment, l was measured as 0.55±0.02 m and T was measured as1.50±0.02 s. Find the:i. Value of gii. Uncertainty in the value of g B. (a) State newton’s second law of motion and write an equation.(b)Define the term INERTIA. (c) Define impulse and write the equation.
Pls help ASAP. Pls show all work and calculations and include units for final answers.
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?
w = FjAc = F .Aë , W = m(v;)* - m(u,)* , v 1 zm(us)* - m(v,)* , W = Problem 1: (a) Ã = 3â – 2ŷ, B = 4â& – 5ŷ. Ã ·B =? Answer: 22 (b) Ã = -2â + 4ŷ, B = 3âu – lŷ. Ā·B =? Answer: –10 (c) Ã = 5â – 3ŷ, B = -3â – 5ŷ. Ã·B =? Answer: 0 1 | F,dx , W = F. dř , F, dU W = -AU dx d = 4m F = 20 N 0 = 30° m = 4 kg Hk = 0.5) m = 2 kg F = 40 N Hk = 0.2 Ө — 30° Problem 2: In the figure above on the left we have a force F = 20 N pulling a box to the right at an angle 0 = 30° above the horizontal. The box has a mass m = 2 kg, the coefficient of kinetic firction between the box and the ground is uk = 0.2, and the block moves a distance d = 4 m to the right. (a) What is the work done by the force F? Answer: 69.3 J (b) What is the normal force from the ground? Use g = 10 m/sec² Answer: 10 N (c) What is the work done by the kinetic friction force? Answer: -8 J (d) What is Wnet, the net work done on the box? Answer: 61.3 J (e) The box has an initial speed of 4 m/sec. What is the speed of the box after it has…
P 1.4 Perform the following addition and subtraction problems with the following measured quantities. Assume ambiguous, place-holding zeros do not indicate a degree of precision.a. 8.45 g + 12 g + 459.01 g = 479 b. 323.98 g – 221.98 g = gc. 34.986 mL – 21 mL = mLd. 34,000 kg + 567 kg = kg = ge. 6.04 m + 91 cm + 45 mm = m = cmf. 6.04 m + 91 cm + 51 mm = m = mmP 1.6 Perform the following multiplication problems, reporting your answer with the correct number of significant figures.(a) (56.03 cm) x (1.000 cm) x (3518 cm) = cm3(b) (56.03 cm) x (1.00 cm) x (3518 cm) = cm3(c) (56.03 cm) x (1.0 cm) x (3518 cm) = cm3P 1.7 Perform the following multiplication and division problems with the following measured quantities. You cannot determine the number of significant figures in a number with ambiguous zeros and so there is no one correct answer for problems with ambiguous zeros.a. (7.34 cm) x (0.0045 cm) x (124 cm) = cm3b. 45.9 g 1.4 mL = g / mL c. 145 mg 0.01 cm3…
12. DETAILS PREVIOUS ANSWERS OSCOLPHYS2016 1,3.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose that a person has an average heart rate of 98.4 beats/min. (Express your answers to problems in this section to the correct number of significant figures and proper units.) (a) How many beats does he or she have in 4.0 y? 4.0 X Your answer cannot be understood or graded. More Information beats (b) How many beats does he or she have in 4.00 y? 4.0 Check the number of significant figures. More Information. beats (9) How many beats does he or she have in 4.000 y? 4.0 Check the number of significant figures. More Information. beats Enter a number with the correct number of significant figures.
Based on the following Figure, the floor cavity ratio, FCR is. 1m section 3 m 0.5m 16 m 12 m plan 20 m O a. 15 O b. 3.75 O c. Other answer O d. 1.25 O e. 0.625
9. What is a benefit of repeated trials during an experiment? O It hides the effects of the independent variable. O It allows you to only use the best measurement. O It is more likely to confirm your hypothesis. O It allows you to take the average of several measurements.
Suppose that Å = 2i + j, B= i– 4j + k, and = j+k. ... What is Á· (B x Č), A A. -2 В) В. -2 k с) с.-11 D) D. -11 k E) none of the choices
云2 A eclass.yorku.ca U PHYS18... M (2,045)... M(98) - fa.. 105-Fe... Future S. U of Study... Ly Assignm... YouTube M(2,045)... HYS1800 A - Engineering Mechanics (Fall 2021-2022) My courses / SC/PHYS1800 A - Engineering Mechanics (Fall 2021-2022) / Work and Energy / Assignment 6 A car travels at a steady 30.3 m/s around a horizontal curve of radius 111 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding? Answer: Next page MacBook Air DD 08 F3 64 F5 F6 F4 F2
04) (A) Let the value of L. M and N is 5.0 and -6 respectively, answer true or false, then correct the false statement. 1. (10.GE. 2*L-1) 2. (M.LT.L. and. M.GE.N) 3. (L.EQ.N+1) 4. (M.GT.N)