Science

PhysicsQ&A LibraryTwo thin rod of length L are rotating with the same angular speed in (rad/s) about axes that pass perpendicularly through one end. Rod A is massless but has a particle of mass 0.76 kg attached to its free end. Rod B has a mass of 0.76 kg, which is distributed uniformly along its length. The length of each rod is 0.72 m, and the angular speed is 4.4 rad/s. Find the kinetic energies of rod A with its attached particle and of rod B.Start your trial now! First week only $4.99!*arrow_forward*

Question

Two thin rod of length L are rotating with the same angular speed in (rad/s) about axes that pass perpendicularly through one end. Rod A is massless but has a particle of mass 0.76 kg attached to its free end. Rod B has a mass of 0.76 kg, which is distributed uniformly along its length. The length of each rod is 0.72 m, and the angular speed is 4.4 rad/s. Find the kinetic energies of rod A with its attached particle and of rod B.

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: #o yolbese 2. A 76.0-kg person is being pulled away from a burning building as shown in figure below...

A: Using Newton’s second law of motion under equilibrium condition,

Q: How do I solve this for "maximum amplitude of oscillation such that the top block will not slip on t...

A: Figure shows A block with mass M rests on a frictionless surface and is connected to a horizontal sp...

Q: help!

A: a)The tension in vertical cable is,

Q: A small cart with low friction wheels is attached to a sturdy wall with a high quality spring that h...

A: 1)Position of the cart is graph A

Q: A force of 40.0 N is applied in the positive x-direction to a block of mass 7.65 kg, at rest on a fr...

A: From Newton’s second law of motion.

Q: N3T.1 An object's x-velocity v,(t) is shown in the boxed graph at the top left. Which of the other g...

A: Now, consider the velocity verses time diagram. In the diagram complete motion is in two part, the f...

Q: ms of appeal in Pirate Port I Public 0f Whiworth Fibrary A Z Databases Course Homne X Join comershon...

A: Given:Drag coefficient = 0.90Cross-section area = 0.48 m2Velocity = 7.3 m/sEfficiency = 25%

Q: Hot water with a mass of .11kg is poured into a 0.25kg ceramic cup. The ceramic cup is initially at ...

A: For the thermal equilibrium the heat loss equals the heat gain. Here, the water losses the heat, and...

Q: A 5.8 × 105 kg train is brought to a stop from a speed of 0.85 m/s in 0.57 m by a large spring bumpe...

A: If the spring gets compressed by a distance of ‘x’ and its force constant is k, its elastic potentia...

Q: i need help with these two questions!

A: Problem 1: Altitude is given by,

Q: Junior throws his mashed potatos onto his mothers lazy susan, which has a moment of inertia of I. If...

A: Using conservation of angular momentum,

Q: A skateboard park has a banked curve of radius 62.0 m. If a skateboarder is going 16.0 m/s, what mus...

A: In the absence of friction,

Q: Below are shown a series of graphs associated with the motion of the mass and a series of physical q...

A: (a)Velocity of mass=B

Q: A dart gun contains a spring of spring constant k = 17 N/m which is used to fire a dart of mass m. T...

A: Given,

Q: A student is running at her top speed of 5.5 m/s to catch a Shuttle bus, which is stopped at the bus...

A: Click to see the answer

Q: A dart gun contains a spring of spring constant k = 17 N/m which is used to fire a dart of mass m. T...

A: Assume the dart is fired from a height of 2 cm and it hits the ground at an angle θ.Write the kinema...

Q: i need help with these two questions!

A: Given:Mass of block 1, m1 = 10.3 kgMass of the block 2, m2 = 3.9 kgCoefficient of static friction = ...

Q: In an experiment to demonstrate the photoelectric effect, physics students allow light of various fr...

A: The expression for the wave function is given by,

Q: A centrifuge accelerates uniformly from rest to 15000 rpm in 210 s. Through how many revolutions di...

A: The number of revolution is given by,

Q: 16.

A: Ionization is the loss or gain of electrons by an atom or molecule whereas polarization is the displ...

Q: a roller coaster track is in the shape of the parabola y= 80 -(x^2/20), where the lengths are in met...

A: The vertical position causes the potential energy of the coaster car. Therefore, from conservation o...

Q: Which of the following about a wave pulse traveling down a long spring is true? i. The size of the ...

A: The size of wave pulse decreases means that the amplitude of wave gets decreasing. It is called the ...

Q: Your friend is on rollerblades holding a pendulum. You gently push her forward and let go. You obser...

A: The net force act on the bob is depends on the tension due to the string and the force of gravity. I...

Q: A golf ball is thrown straight up from the edge of the roof of a building. A second golf ball is dro...

A: Part A:Consider the second golf ball dropped with initial velocity, u2 (which is zero) from height 2...

Q: At t = 0, a particle leaves the origin with a velocity of 9.0 m/s in the positive ydirection and mov...

A: The equation of motion is given by,

Q: Find the current through each of the three resistors of the circuit show in the picture. The emf sou...

A: Click to see the answer

Q: I need the answer to question 7

A: Let v be the velocity of the projectile kicked by the child, theta be the angle made by velocity wit...

Q: The force shown in the force vs. time diagram in the figure below acts on a 2.0-kg object (N) 2 1 4 ...

A: a)Impulse(I) is given by the area under the F vs t curve and can be calculated as,

Q: 13.

A: Let the two bodies are electrically neutral before rubbing. Let q1 be the charge accumulated on firs...

Q: 6 What velocity is needed for your car to negotiate a 100-meter radius curve banked at a 20.0° angle...

A: Velocity is given by,

Q: Can you please answer question 3 and show the steps

A: Consider v be the velocity of the dolphin.Resolve the component of the velocity along x-axis(Horizon...

Q: A 3000 kg cannon is mounted so that it can recoil only in the horizontal direction. Calculate its r...

A: According to momentum conservation law,

Q: A runaway train car that has a mass of 15,000 kg travels at a speed of 5.4 m/s down a track. Comput...

A: Acceleration is,

Q: A student bikes to school by traveling first dN = 1.10 miles north, then dW = 0.300 miles west, and ...

A: Vector showing the displacement in north direction is,

Q: The figure shows a uniform, 3.0-T magnetic field that is normal to the plane of a conducting, circul...

A: Click to see the answer

Q: A dragster starts from rest and accelerates down a track. Each tire has a radius of 0.320 m and roll...

A: a)Linear speed is,

Q: Before the drawbridge starts to open, it is perfectly level with the ground. The dancer is standing ...

A: Before the drawbridge starts to open, there is no tendency of motion of the dancer relative to the b...

Q: A mass hanging from a vertical spring is somewhat more complicated than a mass attached to a horizon...

A: The free body diagram is,Direction of force = downward

Q: An asteroid has a mass of 3.66 × 10kg and a radius of 8.2 × 10m. If a 25 kg mass is dropped from 10 ...

A: The acceleration due to gravity is,

Q: Review | Constants Six vectors (a through f) have the magnitudes and directions indicated in the fig...

A: Vector position of given vectors are shown in diagram,

Q: A 2,000 kg car traveling due east at 45 mph collides completely inelastically with a 4,000 kg truck ...

A: Let m1, m2 be the masses of the car and truck respectively, v1 be the velocity of car, v2 be the vel...

Q: My question is why did we used sine and cosine 45 degree? Is not is supposed to be 315 degree since ...

A: It is given that the force along the y-axis is

Q: i need help with these two questions!

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...

Q: Please show me how to draw the free body diagram as well.

A: Click to see the answer

Q: A 250-kg flatcar 23 m long is moving with a speed of 7.0 m/s along horizontal frictionless rails. A ...

A: Given information:Mass of the flat car, M = 250 kg Mass of the worker, m = 95 kgThe velocity of the ...

Q: Let's assume that two objects with masses mA and mB are mvoing with velocities vA and vB along the x...

A: Let va, vb are the initial velocities of masses a and b, and va’, vb’ are the final velocities of ma...

Q: 1 A girl leaves a history classroom and walks 10. meters north to a drinking fountain. Then she turn...

A: Given information:Path walked by the girl:10-meter North; 30-meter south.Since north and south are o...

Q: A shopper pushes a grocery cart for a distance 21.5 m at a constant speed on level ground, against a...

A: Given:Displacement of the cart = 21.5 m Friction force = 45 NDirection of the for...

Q: A 70 kg person stands on the very end of a uniform board of length l, which is supported one-quarter...

A: Given values:Mass of the person, M = 70 kgLength of the rod = LLet the mass of the board be m

Q: (b) What torque must be applied to this object to give it an angular acceleration of 1.30 rad/s2 if ...

A: Torque is,