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A mass on a spring bobs up and down over a distance of 25 cm from the top to the bottom of its path twice each second. What are its period and amplitude?
A 102g Frisbee is 25cm in diameter and has half its mass spread uniformly in the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia
A space station is constructed in the shape of a wheel 25 in diameter, with essentially all of its 5.10×10^5 mass at the rim.
A 0.14 kg ball is placed in a shallow wedge with an opening angle of 126°. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.
Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when..
Sirius is about 9.0 light-years from Earth. How far is the trip according to you and How long would the trip take according to an Earth-based observer
A 2.80 kg object moves in a plane with velocity components vx = 14.0 m/s and vy = -84.0 m/s as it passes through the point (x,y) = (0.7,-4.2) m. What is the magnitude of its angular momentum relative to the origin at this moment
When traveling past an observer with a relative speed v, a rocket is measured to be 9.10m long. What is the proper length of the rocket
A ball is dropped from a hot air balloon that is accelerating upward at 10 ft/sec2. What is the acceleration of the ball upon its release
An object is located 12.5 cm in front of a convex mirror, the image being 6.90 cm behind the mirror. How far in front of the mirror is the second object located
Compute the number of g's a person would experience if she could stand on the equator of Jupiter. Use following astronomical data for Jupiter: mass = 1.9 multiplied by 1024 kg, equatorial radius = 7.10 multiplied by 104 km, rotation period 9 hr 55 mi..
A certain capacitor in a circuit has a capacitive reactance of 30.89 ohms when the frequency is 177 Hz. What capacitive reactance does the capacitor have
A bat flies toward a wall at a speed of 5.5 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 29.0 kHz. What frequency does the bat hear in the reflected wave
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