When installing a new MSA cylinder into the harness, slide it thru until the cylinder is resting near or on the bumpers. How far should we rotate the cylinder so the cylinder gauge is face up?
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- The flywheel of a steam engine runs with a constant angular speed of 132 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 2.5 h. What is the magnitude of the constant angular acceleration of the wheel in rev/min2? Do not enter the units. 8.80x10-1 You are correct. Your receipt no. is 161-6726 Previous Tries How many rotations does the wheel make before coming to rest? 9.90x103 You are correct. Your receipt no. is 161-5241 Previous Tries What is the magnitude of the tangential component of the linear acceleration of a particle that is located at a distance of 50 cm from the axis of rotation when the flywheel is turning at 66.0 rev/min? 6.14 10^-4 m/s^2 Submit Answer Incorrect. Tries 8/40 Previous Tries What is the magnitude of the net linear acceleration of the particle in the above question? Submit Answer Tries 0/40Please don't provide handwritten solution... As the rotational speed of a space habitat increases, the apparent weight of people inside A. decreases. B. increases. C. stays the same. D. is one-half the space habitat's center of gravity.Lx Gi A 325-kg merry-go-round with a radius of 1.50 m is spinning counterclockwise, as viewed from above, at 4.80 rad/s. A 35.0-kg child is hanging on tightly 1.25 m from the rotation axis. Her father applies friction to the outer rim to slow the merry-go-round to a stop in 5 s. Model the merry-go-round as a solid disk, and define counterclockwise as the positive direction of rotation. How much torque t must the child's father apply? 432 T = N-m Incorrect
- The 184-kg spool has a radius of gyration about its mass center of kg = 300 mm. If the couple moment is applied to the spool and the coefficient of kinetic friction between the spool and the ground is μ = 0.2, determine the angular acceleration of the spool, the acceleration of G and the tension in the cable. ( Figure 1) Figure 0.4 m 0.6 m B M = 450 N.m 1 of 1 Determine the angular acceleration of the spool. Express your answer to three significant figures and include the appropriate units. α = Submit Part B aG= O Value X Incorrect; Try Again Submit Part C μà Determine the acceleration of G. Express your answer to three significant figures and include the appropriate units. O Previous Answers Request Answer O μA Value Units Request Answer ? μA Units Determine the tension in the cable. Express your answer to three significant figures and include the appropriate units. ? ?I need help with this Hw ProblemThe paths of two small satellites, X and Y, of equal mass of 4.00 kg each, are shown below. They orbit around a massive star, as illustrated, with M = 6.20x1029 kg The orbits are in the plane of the paper and are drawn to scale. %3D a C In the statements below KE is kinetic energy, PE is potential energy, and L is magnitude of the angular momentum. At a, the PE of X is .... that of Y. v The speed of Y at c is .... that at a The L of X at p is .... that at u. At a, the KE of X is .... that of Y. The PE of Y at c is .... the PE of X at w Submit Answer Tries 0/12 Send Feedb
- In orbit mechanics, the angular momentum is also an important quantity governing the satellite's motion. Assume planar motion, a satellite is orbiting around Earth center within a fixed plane. Thus it's motion is completely described by the distance r and the angle (relative to some reference direction). êo 0 (center of Earth) êr PO.. P (satellite) satellite's trajectory Obtain the satellite's angular momentum with respect to Earth center. For spacecrafts, the angular momentum (h) is h = Fx, it is independent of mass. What is the magnitude of h?lo completes one orbit about Jupiter in 1.77 days and the average Jupiter-Io distance is 4.22 x 10° m. Calculate the angular speed w of Io as it orbits Jupiter. W =Consider a phonograph with a diameter of 0.6 m and a rotational speed of 33 RPM. Answer the following questions. What is its radius in m?What is its rotational speed in rad/s?What is the tangential speed on the phonograph's outer edge in m/s?What is the tangential speed at the center of the phonograph in m/s?What is the tangential speed halfway out to the edge of the phonograph?
- Practice Problems: Torque Physics 1. A 200 g mass is placed on the meter stick 20 cm from the fulcrum. An unknown mass is positioned 8 cm from the fulcrum to balance the system. What is the mass of this unknown object? Unknown mass T = rx F Page rccw Fulcrum rcw 2. A 250 g mass is placed on the meter stick 30 cm from the fulcrum. An unknown mass is positioned 40 cm from the fulcrum to place the system in equilibrium. What is the mass of the unknown object? 1 / 2 Load: 200-g mass +Arithmetic question. Write only the final value of the answer. Suppose you did the rotational dynamics labs with a 200g solid sphere. The sphere was placed at rest at the 100cm mark on the track which is inclined at 150 angle with the table. What is the translational kinetic energy in (J) of the sphere as it leaves 0 mark of the track? Write your answer with TWO decimal places.You have a grindstone ( a disk) that is 90.0 kg, has a 0.340 m, radius and is turning at 90.0 rpm, and you press the steel axe against it with a radical force of 20.0 N. a) Assuming the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone. b) How many turns will the stone make before coming to rest?