0. 29 : By keeping moment of inertia of a body constant, if we double the time period, then angular momentum of body (a) remains constant (b) becomes half (c) doubles (d) quadruples
Q: In the middle of a spin, a figure skater halved his moment of inertia by bring his arms and leg in.…
A: Torque is the measure of the force that can cause an object to rotate about an axis. τ = dL/dt Where…
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Q: A crate of mass 187 kg is held in the position shown. Determine (a) the moment produced by the…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
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Q: Competitive divers pull their limbs in and curl up their bodies when they do flips. Just before…
A: Moment of inertia is given by where
Q: A 30 kgm² object and a 70 kgm² object have an angular collision. The graph below is for the 70 kgʻm²…
A: Given: Moment of Inertia of the first object, I1=30 kg.m2 Moment of inertia of the second object,…
Q: (a) Calculate the angular momentum, in kg- m²/s, of an ice skater spinning at 6.00 rev/s given his…
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Q: Problem 8: A small bug of mass m = 0.025 kg is moving at a speed of vo = 9.03 m/s when it collides…
A: mass of small bug (m) = 0.025 kg initial speed of bug (vo) = 9.03 m/s mass of solid cylinder (M) =…
Q: A steam fan in a thermal power plant has a moment of inertia of 3 kg ∙ m2 about its axis of…
A: Given data: Moment of inertia, I=3 kg.m2 Angular frequency, ω=3600 s-1 Time, t=3 s
Q: There is a particle in space. It has a mass (m) of 50.0 g The position of the particle is given by…
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Q: A light, rigid rod of length { = 1.00 m joins two particles, with masses m, = 4.00 kg and m ,= 3.00…
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Q: Explain how the moment of inertia(I) of a figure skater changes during performance and how it…
A: To explain: Change in moment of inertia of a figure skater.
Q: Chapter 11. Angular Momentum A 30kg child runs with a speed of 3 m/s and jumps and lands…
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Q: Every summer, your family goes to Callaway Gardens to see the acrobats in the Flying High Circus.…
A: Conservation of angular momentum: The angular momentum of a system is conserved if there is no net…
Q: A right-handed golfer with an arm length of 70 cm, swings a 120 cm, .75 kg golf club for .5 seconds…
A: Given: Arm length of golfer length of golf club Mass of golf club Time Angular acceleration…
Q: A merry-go-around with moment of inertia of I and radius of R rotates with angular speed of w0. A…
A: The initial angular momentum of the merry-go-round can be given as, Li=I.ω0 When a metal block is…
Q: D Question 21 Two identical cylindrical disks have a common central axis. Initially one of the disks…
A: The formula for the angular momentum is given as, Here, I and ω represent the moment of inertia and…
Q: a constant Ex. 61 A body is acted upon by torque. In 4 seconds its angular momentum changes fromL to…
A: To find- Change in magnitude of torque (τ2-τ1)=? Given- Time(t)=4 sec Initial angular momentum…
Q: (a) Calculate the angular momentum (in kg-m2/s) of an ice skater spinning at 6.00 rev/s given his…
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Q: 2.Four spherical masses are connected as shown in figure on each of the corners of a square of side…
A: Given : Four spherical masses placed at the corners of the square. Mass of the masses, m = 1 kg Side…
Q: Q10. Moment of inertia of a solid cylinder of mass M, height l and radius R about an axis (shown in…
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Q: Using the graph for the inelastic collision shown above, calculate the absolute value of the change…
A: Hey there, since you have asked multiple questions, we have asked the first one for you. Please…
Q: . A playground merry-go-round of radius R and mass 4m (treat as a solid disk) freely about its…
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Q: A 4.0-kg particle moves in a circle of radius 2.0 m. The angular momentum of the particle varies in…
A: a) The torque will be,
Q: An ice skater has a moment of inertia of 4.6 kgm2 when her arms are outstretched. At the time, she…
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Q: A uniform ruler of mass (200g) rotates with an angular velocity of 3 rads/s about a perpendicular…
A: Given data: Mass (m) = 200 g = 0.200 kg Length (L) = 1 m Angular velocity (ω) = 3 rad/s Momentum of…
Q: The angular momentum of a sphere is given by L = (−5.00t3) + (6.10 − 1.80t2) + (6.95t), where L…
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Q: Two particles of mass 1 kg each are attached to a massless rod a distance of 1 m and 2m respectively…
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Q: Part (e) Calculate the magnitude of the angular momentum L, in kg m/s,of the coconut as observed by…
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Q: An ice skater is spinning at 5.4 rev/s and has a moment of inertia of 0.28 kg ⋅ m2.
A: Given that: Angular velocity is ω=5.4 rev/sω=5.4×2π rad/sω=33.93 rad/s The moment of inertia is…
Q: Q10. Moment of inertia of a solid cylinder of mass M, height I and radius R about an axis (shown in…
A: Given, Mass M and height l and radius R
Q: A 3.1 kg rock has a horizontal velocity of magnitude v = 1.9 m/s when it is at point P in the…
A: Given: The mass of the rock is m = 3.1 kg The horizontal velocity of the magnitude is v = 1.9 m/s…
Q: Problem 10: While watching the clouds pass by, you notice a European swallow flying horizontally at…
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Q: 1. A thin stick (m, ) has a pin through the bottom about which it can freely rotate and a massless…
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Q: Calculate the magnitude and direction of the angular momentum of a 3.25 kg object about the origin…
A: We have an object of mass m=3.25 kg whose position vector is given by r→=-6j^+4.25tk^ and is given…
Q: Q6 to Q10 are based on the following graph that shows the angular velocity as a function of time for…
A: Given:
Q: Q. 44 : Angular momentum of two bodies of momentum of inertia (I,) and (I) are same (I, > I2). If…
A: Given Data : L1=L2=LI1>I2 (E1) and (E2) be rotational K.E. of…
Q: 3. A has a A playground small child with mass 35.0 kg runs at a velocity of 2.50 m/s along a path ta…
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Q: time, where the position vector of the object as a function of time is given by r-(-6.00 ĵ+4.25…
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- Astronomical Clock, a famous tower clock in the Czech Republic, has a minute hand df length L = 6.80 m and mass M = 120 kg. Assume the minute hand is rotating at a constant rate of one revolution every 60 minutes (3,600 s). Calculate the angular momentum of the minute hand about the center point. {Model the hand as long, thin rod rotating about one end} O 4.41 kg-m²/s O 3.22 kg-m²/s O 2.97 kg-m²/s O 1.39 kg-m²Is O 5.52 kg-m² /s MacBook AirTo kick a football, the kicker rotates his leg about the hip joint. If the velocity of the the kicker's shoe is 37.5 m/s and the hip joint is 1.21 m from the tip of the shoe, what is the shoe tip's angular velocity? The shoe is in contact with the initially nearly stationary 0.500 kg football for 20.0 ms. What average force is exerted on the football to give it a velocity of 19.7 m/s? Find the maximum range of the football, neglecting air resistance.A physics 70 kg professor stands at the center of a frictionless turntable with arms outstretched (the length of each arm is 1.2 m) and a 2 kg dumbbell in each hand. He is set rotating about the vertical axis at 2.5 rad/s. Calculate the angular velocity if he pulls the dumbbells into his stomach (assume that both dumbbells are over the axis of rotation). Moment of intertia was not given
- Problem 10: While watching the clouds pass by, you notice a European swallow flying horizontally at a height h = 21.9 m above you. When the swallow is directly overhead, it drops an m = 10.7 kg coconut. From your ornithological studies, you know that the air-speed of this particular species of swallow while carrying such a load is vo = 7.73 m/s. In this problem you may neglect air friction. Refer to the diagram. Assume the origin of the coordinate system there is at your head. hA 1 kg ball initially travelling at 7 m/s strikes on the lower end of a 5 kg bar AB, as shown in Figure Q2(a). The bar is hinged at A and is initially at rest. The coefficient of restitution between the rod and sphere is 0.7. (i) Determine the angular velocity of the bar and the velocity of the ball immediately after impact.Ex 34: A disc is freely rotating about a vertical axis passing through its centre at the rate of 100 r.p.m. A blob of wax of mass 20 gm falls on the disc and sticks to it at a distance of 5 cm from the axis. If the moment of inertia of the disc about given axis is 2 × 10-4 kg m² find the new frequency of rotation of the disc. (March 1994)
- The position vector of a particle of mass 1.0 kg as a function of time is given by F= (6f + 10 tj ) m where 7 is in meters and t is in seconds. Determine the angular momentum of the particle about the origin as a function of time (in kg m2/s)? Option 1 Option 2 Option 3 Option 4 Option 5 (20 tj) (120 tj) (60 tj) (30 tj) (240 tj)We will assume that the velocity of Juan's hand and the pencil were both 0.9 meters per second prior to impact and that his wrist added an angular velocity to the pencil of 7.4 radians/second. In reality the pencil dug in nearest to my thumb and did not poke through the back. For the purpose of this calculation we will instead say that the blue pencil of mass M and length of L pushed through my hand until 20% of its length was behind the hand. We will further assume that the normal force between the hand and the pencil was 120 Newtons and that the area of the point of the pencil was 0.0024mm2. The coefficient of kinetic friction between the pencil exterior and my flesh was 0.24 because I was running a slight fever and had a temperature of 102 degrees Fahrenheit. Write an expression for dm: dm = Write the result for the Moment of Inertia: I = The formula for Moment of Inertia in the form of an integral: I = ∫ Write an expression for the upper limit of the integral: Upper Limit…Please answer question 8