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A uniform, spherical cloud of interstellar gas has mass 2.0Ã-1030 kg and radius 9.0Ã-1012 m, and is rotating with period 1.5Ã-106 years. If the cloud collapses to form a star 7.3Ã-108 m in radius, what will be the star's rotation period?
Starting from rest with an acceleration of 0.37 m/s2, he covers the same distance as the ramp does, but in one-fourth the time. Illustrate what is the speed at which the belt of the ramp is moving?
Two charged bodies exert a force of .145N on each other. If they are now moved so they are one fourth as far apart, what force is exerted.
A gyroscope flywheel of radius 2.83 cm is accelerated from rest at 14.8 rad/s2 until its angular speed is 2760 rev/min. What is the radial acceleration of this point when the flywheel is spinning at full speed
A wheel with rotational inertia .146 kg-m2 turns through 40 rev as it slows down from an angular speed of 1.5 rad/s to a stop, what is the angular deceleration
The gravitational acceleration of bodies dropped near the Moon's surface is about 1.6 m/s^2. Find the time for an object dropped from rest to fall 3.0m on the Moon Find the time for an object dropped from rest to fall 3.0m on Earth.
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
A baseball with a mass of 0.152 kg is moving horizontally at 32.0 m/s [E], when it is struck by a bat for 0.00200 seconds, Find the average net force of the ball
If a drop is to be deflected a distance = 0.28 by the time it reaches the end of the deflection plate, what magnitude of charge should be given to the drop? Imagine that the density of the ink drop is 1000 and ignore the effects of gravity.
An LR circuit is hooked up to a battery as shown in the figure, with the switch initially open. The resistance in the circuit is R=120Ω, the inductance is L=4.10H, and the battery maintains a voltage of E=49V. At time t=0 the switch is closed.
A simple circuit consists of a battery connected to a lightbulb. A current of 0.243 A runs for 64.5 min, What is the voltage of the battery
Laser ligh can be focused (at best) to a spot with a redius [r] equal to its wavelength ([lamba]). Suppose that a 1.0 W beam of green laser light, Estimate the acceleration of the particle
A solid cylinder with a radius of 4.0 {rm cm} has the same mass as a solid sphere of radius R. If the cylinder and sphere have the same moment of inertia about their centers, illustrate what is the sphere's radius?
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