A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round. The angular speed of the child has a constant value of 0.242 rad/s. At the instant the child spots the horse, one- quarter of a turn away, the merry-go- round begins to move (in the direction the child is running) with a constant angular acceleration of 0.015 rad/s?. What is the shortest time it takes for the child to catch up with the horse?

Q: Rank these automobiles based on the magnitude of the impulse needed to stop them, from largest to…

A: Formula of impulse: J=mv Where,   J= Impulse.  m= Mass.  v= Velocity.

Q: If the coefficient of friction is 0.090, what is the ski's speed at the base of the incline? Express…

A:

Q: A 1300-kg car moving on a horizontal surface has speed v = 65 km/h when it strikes a horizontal…

A:

Q: If a current carrying wire is pointed into the sky (+z), what direction is the force on it if the…

A: To determine the direction magnetic force.

Q: Assume the metropolitan region of Chicago is a circular area having a diameter of 60.5 miles. What…

A: Given that, diameter of area, d=60.5 miles

Q: A scuba tank, when fully submerged, displaces 15.7 L of seawater. The tank itself has a mass of 13.7…

A:

Q: After completing the experiment with the single slit, you wish to determine the width of the slit.…

A: Wavelength=632.8nm Intensity=4cm

Q: A mass/spring system

A:

Q: A 20 kg child running at 1.4 m/s jumps onto a playground merry-go-round that has inertia 180 kg and…

A:

Q: In the state of Indiana it was once proposed to round the value of a to 3. Using the Percent Error…

A: Since you have asked multiple questions, we will solve the first one for you. If you want any…

Q: Block 1, of mass m1 = 7.70 kg , moves along a frictionless air track with speed v1 = 23.0 m/s. It…

A:

Q: Quest Many problems in Physics use subscripts to identify quantities. For example, many of the…

A:

Q: 3.7. The graph to the right shows the momentum of two carts on an almost frictionless track be-…

A:

Q: Consider the waveform expression. y(x, t) = ymsin (3.38 + 0.163x + 207t) The transverse displacement…

A: Given:

Q: A ski starts from rest and slides down a 28° incline 55 m long. • Part A If the coefficient of…

A: Given data: Angle of inclination, θ=280 Distance covered, d=55 m Coefficient of friction, μ=0.090

Q: Can i get help step by step?

A: Part (a) Basic Details The first equation of motion under gravity provides the relation between the…

Q: Return to the city blocks shown to the right where each block has a length b = 80 m, east is right…

A:

Q: An experimental car is designed to work by accumulating energy in a flywheel' shaped as a uniform…

A: a) The moment of inertial of the flywheel (assuming uniform disk). I=12mR2=12631.5 kg1.3 m2=533.6 kg…

Q: An airplane is flying at 200 m/s at an angle of 30° north of east. How fast is the plane flying…

A:

Q: A uniform beam of weight 12 N and length 10 m is mounted by a small hinge on a wall. The beam is…

A:

Q: Find the magnitude of the electric force on charge q1 and the direction of that force relative to…

A:

Q: Suppose that the magnetic dipole moment of Earth is 6.4 × 1020 J/T. (a) If the origin of this…

A:

Q: According to the NASA Science Solar System Exploration web site, "Mars' moons are among the smallest…

A: Time period (T)= Time taken for 1 rotationFrequency (f) = no of rotation in 1sec = (1/time period) =…

Q: A jet is flying through a wind that is blowing with a speed of 55 mi/h in the direction N 30° E (see…

A: speed of wind is Vwind = 55mi/h in direction N 30°E, Speed of jet relative to air is Vair= 770 mi/h…

Q: A 454.0-kilogram wrecking ball is affixed to the end of an 8.2-m chain, which in turn is attached to…

A:

Q: 7. A constant force of 25 N is applied as shown to a block which undergoes a displacem of 7.5 m to…

A: It is believed that work done by a constant force can solve this problem. Calculate the angle…

Q: A current-carrying loop and a bar magnet are held at rest in the positions shown below. Will the bar…

A: Current loop behaves like bar magnet because magnetic field created by bar magnet and current loop…

Q: A 1300-kg car moving on a horizontal surface has speed y = 50 km/h when it strikes a horizontal…

A: The kinetic energy will equal to the elastic potential energy. mv22=kx22

Q: A series RC circuit consists of a resistor, a capacitor that is initially uncharged, a battery, and…

A: We know that we have given an RC circuit in which the resistance and capacitor are in the series,…

Q: The circuit shown below consists of a 12-V battery and four resistors. The currents through K and N…

A: battery rating = 12 V current through K = 9 A current through M and N = 1 A voltage across M = 3 V…

Q: 2. John pulls a 60 pound box along a level surface from left to right by attaching a piece of rope…

A:

Q: Consta A compressive force of 3.1 x 10ʻ N is exerted on the end of a 23-cm-long bone of…

A:

Q: The graph of a sinusoidal function intersects its midline at (0, 1) and then has a maximum point at…

A: Given Sinusoidal function intersects point =  (0, 1) Maximum point                                =…

Q: A 4,978 N force acts on a 1,937 kg car initially at rest for 6.3 seconds. How far did the car travel…

A:

Q: The figure is a section of a conducting rod of radius R₁ = 1.50 mm and length L = 12.70 m inside a…

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

Q: A 1-kg metal ball slides across an incredibly smooth table at 5 m/s and hits a 0.2-kg metal ball at…

A: For the given problem, we need to check the law of conservation of momentum and energy before and…

Q: A uniform beam of weight 12 N and length 10 m is mounted by a small hinge on a wall. The beam is…

A:

Q: 5.4. A steel ball with a mass of 4.8 kg is dropped (released from rest) from a third-floor balcony…

A:

Q: 6.5. Moving at its maximum safe speed, an amusement park carousel takes 12s to complete a…

A: time period = T = 12 Secinitial Angularvelocity = W0 = final angular velocity = W = 0angular…

Q: I need help solving this problem!

A: The moment of inertia is calculated as

Q: A classical system consists of N indistinguishable particles. The energy leve for each particle are…

A: Solution:  solutions to the given problem: (1) Partition Function:The partition function of the…

Q: 1. The current in two straight, parallel, fixed wires are in the same direction. If currents in the…

A: Hai, since there are multiple questions posted, we will answer the first question. Magnitude of the…

Q: A small glass bead with a charge of +82 nC is affixed to an insulating string. The other end of the…

A: Given data The charge is q=82 nC The force is F=220 N   The force on the charge is, F=qE220…

Q: Which graphs represents the relationship between the pressure of an ideal gas and temperature if the…

A: Write the ideal gas equation. PV=nRT Here, The number of moles of the gas is "n" The ideal gas…

Q: A crane lifts the 29000 kg steel hull of a ship out of the water. Part A Determine the tension in…

A: The mass of the steel hull, m = 29000 kg The density of the hull (steel), ρhull = 7860 kg/m3 The…

Q: Can you help with this question? thanks ahead of time.

A:

Q: thin film of soap with n = 1.38 hanging in the air reflects dominantly red lighnt with A = 672 hm.…

A:

Q: Worldview satellites have a nadir-looking resolution of about 0.3 m (GSD). Imagine the company wants…

A: Given that: λ=0.45×10-6 md=0.3mH=15000 km

Q: Consider two nested, spherical conducting shells shown in grey and red in the figure 7. The first…

A:

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.