Science

PhysicsQ&A Library(II) A dad pushes tangentially on a small hand-drivenmerry-go-round and is able to accelerate it from rest to afrequency of 15 rpm in 10.0 s. Assume the merry-go-roundis a uniform disk of radius 2.5 m and has a mass of 560 kg,and two children (each with a mass of 25 kg) sit oppositeeach other on the edge. Calculate the torque requiredto produce the acceleration, neglecting frictional torque.What force is required at the edge?Start your trial now! First week only $4.99!*arrow_forward*

Question

(II) A dad pushes tangentially on a small hand-driven

merry-go-round and is able to accelerate it from rest to a

frequency of 15 rpm in 10.0 s. Assume the merry-go-round

is a uniform disk of radius 2.5 m and has a mass of 560 kg,

and two children (each with a mass of 25 kg) sit opposite

each other on the edge. Calculate the torque required

to produce the acceleration, neglecting frictional torque.

What force is required at the edge?

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: In your new job, you are the technical advisor for the writers of a gangster movie about Bonnie and ...

A: Click to see the answer

Q: A car is going .63 m/s2 how long does it take to go from a speed of 40 mi/hr to 47 mi/hr?

A: Kinematic expression

Q: ONLY NEED 11 Two pulses, traveling in the opposite directions, on the same string are described by...

A: Click to see the answer

Q: On the surface of the moon where local gravity is 1.67 m/s², 4.4 kg of gas occupy a volume of 1.2 m³...

A: Click to see the answer

Q: A spaceship ferrying workers to Moon Base I takes a straight-line path from the earth to the moon, a...

A: The total distance between Earth and Moon, Acceleration of spaceship, Time of accelerated moti...

Q: The vector above is given in x- and y-component form as Vx = 14 m/s, Vy = -5 m/s' What is the angle ...

A: Click to see the answer

Q: A single-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a spatially uni...

A: Given data The radius of the wire is r = 50 mm. The time interval is given as t = 0.10 s. The initia...

Q: What is this equation in physics

A: Click to see the answer

Q: Number 1 and 2 please show all work by step

A: Given data *The monkey’s face has a net charge is q1 = -8.0 C = -8.0 × 10-6 C *The monkey’s tail has...

Q: When heat transfers into a system, is the energy stored as heat? Explain briefly?

A: When a body can do work, then the body possesses energy. Energy may be of a different kind. It may b...

Q: In the reality television show “Amazing Race” (https://openstaxcollege.org/l/21amazraceclip) , a con...

A: Given: The mass of the watermelon is m = 12 kg. Stretching of the slingshot is x = 1.5 m. The waterm...

Q: If 4.00 ✕ 10−3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period...

A: Given - Mass of gold deposited , m = 4.00 x 10-3 kg = 4.00 g time taken for deposition of gold , t ...

Q: Correlate the rate of change of current to the induced emf created by that current in the same circu...

A: The expression for the self inductance,

Q: The current shown in part (a) below is increasing, whereas that shown in part (b) is decreasing. In ...

A: a) The current is increasing, that means the current is flowing from lower potential to higher poten...

Q: the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about...

A: Click to see the answer

Q: Using an atwood's machine from https://www.physicsclassroom.com/Physics-Interactives/Balance-and-Rot...

A: Draw the FBD of the problem as shown below. Here, M1 and M2 denote the masses of the smallest w...

Q: George, the absent-minded professor, drives his car 5.0 miles due east alonga straight road to the g...

A: Click to see the answer

Q: A block of mass 200 g is attached at the end of a massless spring of spring constant 50 N/m. The oth...

A: Click to see the answer

Q: A woman weighing 580 N does a pushup from her knees, as shown. What are the normal forces of the flo...

A: Given A woman weighing 580 N does a push up from her knees, as shown. What are the normal forces of ...

Q: A solenoid of N1 turns has length l1 and radius R1, and a second smaller solenoid of N2 turns has le...

A: Given data: The number of turns of the first larger solenoid is: N1 The radius of a larger solenoid ...

Q: A 1050-kg car rounds a curve of radius 72 m banked at anangle of 14°. If the car is traveling at 85 ...

A: Given data The mass of the car is m = 1050 kg. The radius of the curve is r = 72 m. The angle of ban...

Q: A car of mass 2000 kg is moving with a constant velocity of 10 m/s due east. What is the momentum of...

A: Given: A car mass = 2000 kg Constant velocity =10 m/s

Q: A commuter backs her car out of her garage with a constant acceleration of 1.3 m/s2. Assume that her...

A: Given data The acceleration is given as a = 1.3 m/s2. The final velocity of the vf = 2.45 m/s. a) Th...

Q: Consider the definitions of speed and acceleration. For motion along a straight line it Is possible ...

A: An object moving in a straight line with a constant speed will have zero acceleration. As it is movi...

Q: A pogo stick has a spring with a spring constant of 2.5 × 104 N/m, which can be compressed 12.0 cm. ...

A:

Q: For the vectors given determine (a) A-B+C (b) A+B-C (c) C-A-B

A: Three vectors are given which has magnitude and directions

Q: In climbing up a rope, a 62-kg athlete climbs a vertical distance of 5.0 m in 9.0 s. What minimum po...

A: Given Data: The mass of an athlete is m=62 kg The vertical distance is, d=5 m The time required to c...

Q: A person drops a pebble of mass m1 from a height h, and it hits the floor with kinetic energy K. The...

A: Click to see the answer

Q: A typical compact disk has a mass of 15 g and a diameter of 120 mm. What is its moment of inertia ab...

A: The expression for the required moment of inertia about an axis through the center perpendicular to ...

Q: (II) A Ferris wheel 22.0 m in diameter rotates once every12.5 s (see Fig. 5–9). What is the ratio of...

A: Click to see the answer

Q: Rank in order, from largest to smallest, the densities of objects A, B, and C as shown. Explain.

A: Step 1 According to the figure, the most part objects A is inside the water, the least part of the o...

Q: Masses A and B rest on very light pistons that enclose a fluid, as shown. There is no friction betwe...

A: Click to see the answer

Q: Some of the fastest dragsters (called "top fuel") do not race for more than 300-400m for safety reas...

A: Given data: The initial velocity of dragsters is: u = 0 The final velocity is: v The distance travel...

Q: Its a question from my book. I am confused, is collision and elastic collision the same? Also, what ...

A: Collisions can be of many types. There are mainly three types of collisions, namely : elastic collis...

Q: You walk 20 m east then 10 m north then 15 m west. What is the magnitude of your displacement in met...

A: Click to see the answer

Q: (II) A ball of mass 0.220 kg that is moving with a speed 5.5 m/sof collides head-on and elastically ...

A: Given value,

Q: The muzzle velocity of a gun is the velocity of the bullet when it leaves the barrel. The muzzle ve...

A: Click to see the answer

Q: Consider a heat engine with a cycle described by the figure, with the volume and pressure at points ...

A: First calculate the area of the triangle ABE,

Q: 1. Find the angle 00 at which the block first starts to move. 2. Suppose that the plank is lifted to...

A: Given data: The block's mass is: m The length of the rough plank is: L The coefficient of static fri...

Q: Power Transfer in an RLC Series Circuit at Resonance (a) What is the resonant angular frequency of a...

A:

Q: 2. The following table lists data for the speed and radius of three examples of uniform circular mot...

A: The expression for the centripetal acceleration is, Here, r is the radius of curvature, v is the sp...

Q: An elephant and a hunter are having a confrontation. a. Calculate the momentum of the 2000.0-kg elep...

A: (a) momentum of the elephant

Q: What is the average momentum of a 70.0-kg sprinter who runs the 100-m dash in 9.65 s?

A: Click to see the answer

Q: How is the reversible process different from the thermodynamic process?

A: Click to see the answer

Q: "direction(No Response) ° counterclockwise from the +x-axis"

A: Click to see the answer

Q: *23. Go The lead female character in the movie Diamonds Are Forever is standing at the edge of an of...

A: Given data The mass of the bullet is, mb=0.010 kg The velocity of the bullet is, vb= 720 m/s The tot...