5. A playground has a small merry-go-round with radius 1.00 m. It's moment of inertia is 135 kgm². A small child with mass 21.5 kg runs at a velocity of 2.75 m/s along a path tangent to the outer rim of the stationary merry-go-round and jumps on. Calculate (a) the magnitude of the angular momentum of the child about the axis of rotation of the merry-go-round, and (b) the angular speed of the combined merry-go-round plus child after the child jumped on. You may assume the child is a point mass.

Q: A heavy sled is being pulled by two people as shown in the figure. The coefficient of static…

A:

Q: Describe how objects can become electrically charged Use Coulomb's law to compute the force between…

A: (i) How objects can become electrically charged. (ii) Force between two charges using Coulomb's law.

Q: A small sphere of charge q = +66 μC and mass m = 5.4 g is attached to a light string and placed in a…

A:

Q: A potato of mass m = 0.26 kg hangs motionless, suspended by two strings as in the figure. Find the…

A: The mass of the potato:

Q: 6. Two blocks connected by a string are being raised by a 200-N force pulling on the top block. What…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A +12 nC charge is located at the origin. Part A What is the electric field at the position (x1, Yı)…

A:

Q: 9 and 10. Thanks.

A: 9.The equation for dot product

Q: If a 0.010 C charge is moving throough a 0.6 T magnetic field

A: Given: Charge on particle is q=0.010 C Magnetic field is B=0.6 T Velocity of particle is v=305 m/s…

Q: All spherical mirror ray diagrams work on the same principle: A) superposition B) the angle of…

A:

Q: Two objects having different masses are subjected to Identical forces act for the same length of…

A: It is given that two objects having same masses are subjected to identical forces for same length of…

Q: Earth has a net charge that produces an electric field of approximately 168 N/C downward at its…

A: Given  Electric field, E = 168 N/C  Radius of earth, R = 6.37× 106 m  Net charge of earth, Q

Q: A long straight wire carrying a current of 0.450 A has a loop with a radius of 5 cm. The current is…

A:

Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure…

A: let q1 = 2.8 x 10-6 Cq2 = 7 x 10-6 Cq3 = 4 x 10-6  C

Q: -ncave lens has a focal length of -3 cm. y from the lens. Find the magnification tive answer and an…

A: Focal length of  concave lens                                                   f  = - 3 cm height…

Q: The force acting on an object is given by F, = (7x - 12) N, where x is in meters. (a) Choose the…

A: Here force is given as F = 7x - 12  Here x is in meter and F is in Newton .

Q: • Grab the object and drag it to the lefthand side of the mirror Mark all of the things below that…

A: From the ray diagram, we can conclude that the sign of focal length is positive. From the ray…

Q: Find the number of turns a solenoid coil with length of 0.06 m should have in order to produce a…

A:

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: hown in the figure below, two long parallel wires (1 and 2) carry currents of I, = 2.86 A and I, =…

A: calculate the net magnetic field at point and find direction as per shown.

Q: An LC circuit like the one in the figure below contains an 95.0 mH inductor and a 26.0 μF capacitor…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: When you go out to your car one cold winter moning you discover a 0.70-cm thick layer of ice on the…

A:

Q: A particle moves along a portion of the parabolic path y? = 4 – x, where x and y a meter, within the…

A: Particle moves in a parabolic path given by the equation y2=4-xThe horizontal component of the…

Q: A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 144…

A:

Q: Consider the semiare of charge shown in the figure, that has an opening angle of 0o = 47° and a…

A:

Q: Two rods and one cable are attached to the supports at O. If two of the forces are as shown,…

A:

Q: Find the frequency of a wave that has a period of 0.063 seconds.

A: If the time period of wave is T, then  Frequency f=1/T

Q: A solenoid with radius a produces a magnetic field with strength B pointing into the page. A square…

A:

Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: The moment of inertia of a solid cylinder of radius R, mass M and length L, perpendicular to its…

A: Write the expression for the moment of inertia of the cylinder as given above. Here M signifies…

Q: The absolute index of refraction for a substance is 2.0. In this substance what is the critical…

A: We know that when light ray goes from a substance with refractive index of "n" to air then the…

Q: You drop a 10 Ib bowling ball and .1 lb piece of paper with air resistance. Which object will hit…

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.