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An 9.00-cm-diameter, 330g solid sphere is released from rest at the top of a 1.70-m-long, 20.0? incline. It rolls, without slipping, to the bottom.
What is the sphere's angular velocity at the bottom of the incline?
What fraction of its kinetic energy is rotational?
A rocket ship at rest in space gives a short blast of its engine, firing 90 kg of exhaust gas out the back end with an average velocity of 700 m/s.
A rod supports a 2.35 kg lamp. a) What is the tension in the rod? b) Estimate the components of the force that the bracket exerts on the rod.
From the shape of total energy vs. time plot, what can you conclude about the conservation of mechanical energy in your mass and spring system.
what is the electric potential energy of this particle. what is its speed just before it strikes the positive plate.
Ignoring the container and the equilibrium vapor pressure of the liquid at 51.5 °C, find out the ratio of the mass of steam to the mass of ice. The specific heat capacity of steam is 2020 J/(kg C°).
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
You are designing a banked turn at an automobile racetrack, The coefficient of static friction between the track and the tires is 0.400. What are the radius of curvature R and banking angle
The rotor of an electric motor has rotational inertia Im = 5.12 x 10-3 kg·m2 about its central axis.Calculate the number of revolutions of the rotor required to turn the probe through 31.3° about its central axis
An object with mass m1 = 8 kg traveling with an x-velocity of V1x = 15/17 collides with an object with mass m2 = 12kg traveling with an x-velocity of V2x = - 15/13, Find the other object's x-velocity
You are standing still and watching a spaceship fly past. How fast is the spaceship moving, relative to you
A horizontal desk surface measures 2.08 m x 1.73 m. If Earth's magnetic field has magnitude 0.495 mT and is directed 64.8° below horizontal, what is the magnetic flux through the desk surface.
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