Lab #8 Rotational Motion

The circular blade of a table saw spins at 3600 rpm (revolution per minute). What is its frequency, in Hertz? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A car tire is 62.0 cm in diameter. The car is traveling at a speed of 16.0 m/s. What is the tire's rotation frequency, in rpmrpm? What is the speed of a point at the top edge of the tire? What is the speed of a point at the bottom edge of the tire?

Match the equivalent quantities: v 160.2 µC A. 9 x 109 N-m2/c2 v 160.2 nC B. 2.56 m C. 25600 m v 256 cm D. 1.602 x 10-7 c E. 1.602 x 10-4 c

While visiting the Albert Michelson exhibit at Clark University, you notice that a chandelier (which looks remarkably like a simple pendulum) swings back and forth in the breeze once every T = 6.2 seconds. T = 6.2 seconds a. Calculate the frequency of oscillation (in Hertz) of the chandelier.  b. Calculate the angular frequency ω of the chandelier in radians/second.  c.  Determine the length L in meters of the chandelier.   d. That evening, while hanging out in J.J. Thompson’s House O’ Blues, you notice that (coincidentally) there is a chandelier identical in every way to the one at the Michelson exhibit except this one swings back and forth 0.11 seconds slower, so the period is T + 0.11 seconds. Determine the acceleration due to gravity in m/s2 at the club.

1. The velocity of a rotating disk is independent of a point's position on the disk.a. Trueb. False  explain 2. The angular velocity of a rotating disk is independent of a point's position on the disk.a. Trueb. False explain

Given A=25mm,=65 rad/s and Ø = π/4 radians.calculate the following: a.frequency in HZ (numbers only)b.the periodic time in ms(millsecond)(numbers only)c.the displacement whent t=T/5.In m meters (numbers only)d.The velocity when t=T/5 in m meter/second (numbers only)e.The acceleration when t=t/6 in m/s^2 meter second^2 (numbers only)

45. A particle P moves on the curve r = 3i + 4t'j. The distance of P from the origin when t = 1 is A 3 в 4 C 5 D 7

A spinning wheel rotates at 320 RPM (revolutions per minute). What is the period of the spinning wheel (time for one revolution)?A) 0.00313 s B) 0.186 s C) 5.2 × 10–5 s D) 5.33 s E) not enough information to know

3. A mass weighing 16 pounds stretches a spring 4 inches. It is released from a position 12 inches below its equilibrium position with a upward velocity of 6 ft/s. a) Find the equation of motion in the form x(t)=c, cos cot+c₂ sin cot b) Find the equation of motion in the form x(t)= Asin(at +). You may express as a 4 decimal place radian value.

physics.com/myct/itemView?assignment ProblemID=189028739 2 W A 220 g block on a 60.0-cm-long string swings in a circle on a horizontal, frictionless table at 65.0 rpm. S 3 E D 20 C $ 4 888 IT D F % 5 MA T G 6 B ▼ Y Part A FO What is the speed of the block? Express your answer with the appropriate units. View Available Hint(s) Y D'H HÅ 3 Value Submit Part B Provide Feedback What is the tension in the string? Express your answer with the appropriate units. ► View Available Hint(s) Submit H Value MacBook Air μÅ 3 → & 7 F7 U N * Units 8 Units DII FB 1 pap ? M ? ( 9 K FO O ) O * 4 F10 - P -

6. Find the angular momentum of a thin 6.9-kg rod of length 7.5 m if it rotates about its midpoint at a speed of 750rpm. 7. A sharp force of 0.75 KN is applied to the edge of a wheel free to rotate. The force acts for 0.069 s. What is the final angular velocity?

A wall clock has a second hand 25.0 cm long. A.) what is the radial acceleration of the tip of this hand

A. p b. 5pts Vector Bx Vector C 3. An electric fan was switched to speed #1 & attained a rotation of 1250rpm in 0.7s from standstill. Then, switched again to speed #3. The fan blades stabilizes to 1720rpm in 0.2 Determine the 1 angular acceleration (in rad/s). Determine the 2 angular acceleration (in rad/s). b. 4. Plahers A, B, and C has a mass of 6 10 kg. 7 10 kg. 5 10 kg correspondingly Distance between A & B: 1,200,000km. Distance between B & C: 2,000,000lkm Distance between A & C: 3,200,000km. Calculate the force that exist between A &B (in N). Calculate the force that exist between B&C (in N). Calculate the force that exist between A & C (in N). a. b. C.

A Ferris wheel of diameter 18.5 m rotates at a rate of 0.2 rad/s. If passengers board the lowest car at a height of 3 m above the ground, determine a sine function that models the height, h, in metres, of the car relative to the ground as a function of the time, 1, in seconds. 4. I a: k: C: d: Equation: i Graph:

The maximum height of a ferris wheel is 14.5m. The wheel takes 4 min to make 1 turn. People get on the ferris wheel 0.5m above the ground at the bottom of the wheel’s rotation. a) State the amplitude, period, and vertical shift of the graph. b) Write an equation to represent the model you determined in part a). c) Determine how high the passenger will be at 40 seconds.

You have just completed the overhaul on your dune buggy. To test the engine, you rev it up to 2.75 x 103 rpm (revolutions per minute). (a) Determine the frequency and period of the engine. frequency 45.8 Hz period How is the period related to the frequency? s (b) If you change the period to 0.0150 s, determine the number of rpm for the engine. 4000 rpm

1.Determine an expression for the instantaneous angular velocity ω if t is in seconds. 2. Determine an expression for the instantaneous angular acceleration α if t is in seconds 3. If a = 9.0 rad/s , b = 13.0 rad/s2 , c = 1.7 rad/s4, evaluate ω at t = 3.1 s .Express your answer using two significant figures. 4.Evaluate α at t = 3.1 s . 5.What is the average angular velocity between t = 2.0 s and t =3.1 s ? 6.What is the average angular acceleration between t = 2.0 s and t =3.1 s ?

a. What is the phase constant in degrees? b. What is the velocity at t = 0 sec? c. What is the V max?

2. A winding drum of an elevator is 3.5 meters in diameter. The cab is raised at 91 m/min and has a mass of 4000 kg. a. Determine the torque applied to the drum. b. How much power (in metric units) must the motor develop?

De: Pre M cap Stu Fric KE Wa slic C cor 4 slic empt=18509&cmid3D516&page%3D14 OSmithScience Physics S2 20-21 My courses / Physics S2 20-21 / Practices (Homework) / P18 (Practice 18) You and a partner sit on the floor and stretch out a coiled spring to a length of 9.1 meters. You shake the coil so you have 1 antinode between the two of you. Your partner measures the time for 16vibrations and finds that its takes 17.1 seconds to make 10 vibrations. What is the frequency of the wave? Answer: NEXT PAGE PREVIOUS PAGE P17 (Practice 17) ► iority Assignment 1 ke (Vector Addition, Fc, FBD Intro) Jump to...

Hi please answer the following question, the answer in the problem is wrong and this answer is wrong too6.25*10^-16 N please make sure to give the right answer. THank you.

A fan is spinning trying to cool down people during a hot summers day. It has a period of 0.940 s and a diameter of 26.8 cm. It begins to slow down and it stops after 5.00 s. How many revolutions did the fan make between the time it started to slow down and when it stopped? a) 2.66 revb) 7.98 revc) 16.7 revd) 137 rev

Referring to the figure below, the correct relation is: ... A. Å + B = č B. Č + B = Ả C. Č + Ả = B D. Å + B + C = 0 ... A A D E No Answer

1. The figure below shows a particle of mass, m = 6.67 x 10-18 kg and containing 5000 excess electron charges travelling with an initial velocity ủo = 60.0 m/s ĵ – 20.0 m/s k. Suddenly, a B = 3.40 T -k uniform magnetic field is turned on. x x x x x X x x x x x x x X X X X X X x X x x X X X X X X X X X X X X X X X X X X X X X x X VX X X X X X X X X X X X X X X X XX X X X X X x X X x x X X X X X X X X x XX x x X X X X X X X X x xX x x X X X X X X X X X x X x x X X X X X X X X X x X x x X X X

A turbine is spinning at 4900 rpm. Friction in the bearings is so low that it takes 18 min to coast to a stop. Part A How many revolutions does the turbine make while stopping? Πνα ΑΣφ ? Að = 435249 rev O You have already submitted this answer. Enter a new answer. No credit lost. Try again.

A conical pendulum has length / and the angle made by the string with vertical is 0 = 38° . The mass of the object is m=140 g. If the period of the circula motion of the object is T=1.74s find the length of the string. Take g=10m/s. Round your answer to two decimal places. m

A 0.5m diameter ball is at rest on the ground and was placed 2.5m away from a curved mirror that has a radius of curvature of 8m. The ball starts rolling towards the mirror at the speed of 0.8m/s and has a period of 0.5s, until a boy throw the ball straight upward at the speed of 1.75m/s and reached the highest peak at a period of 1.5s. a. What is the focal length of the mirror? b. What is the distance of the image formed of the ball from the vertex? c. What is the magnification of the image formed?