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A block of unknown mass is attached to a spring of spring constant 6.1 N/m and undergoes simple harmonic motion with an amplitude of 9.5 cm. When the mass is halfway between its equilibrium position and the endpoint, its speed is measured to be 36.6 cm/s. Calculate the mass of the block.
a 200 g ball of putty falls vertically into a 2.50 kg cart that is rolling freely at 2.00 ms on a horizontal surface.
A planet orbits a star once every 3.44 multiply.gif 107 s in a nearly circular orbit of radius 1.46 multiply.gif 1011 m. determine the tangential speed of the planet
A 3.60 {rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66 {rm kg} construction worker stands at the far end of the beam.
Each of two small spheres is positively charged; the combined charge totals 60.0 nC. A.) What is the charge on each sphere if the spheres are repelled with a force of magnitude 0.270mN when placed 0.100m apart?
A professor walks in a long hall carrying a vibrating 512Hz tuning fork. The end of the hall is closed so that sound reflects from it. The student hears 4 beats per second. How fast is the student walking and in what direction.
q1.a race car starts from rest on a circular track of radius 453 m. the cars speed increases at the constant rate of
Some space invaders build a giant gun on the surface of their planet. What must the muzzle velocity for the projectile to escape the planet's gravitation when fired perpendicular to the horizon
Two identical boats travel through still water at 3 m/s. They start from the same point on the bank of a river and travel the same distance from the starting point, How fast is the current in the river flowing
If 5.0 ´ 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor
Which of the planets fits the following description: "a solid, cool surface, with occasional dust clouds and a thin CO2 atmosphere".
If the maximum acceleration that is tolerable for passengers in a subway train is 2.45 m/s2 and subway stations are located 840 m apart, What is the travel time between stations
A string 2.0m in length is fixed a both ends and tigthened until the wave speed is 78m/s. what is the frequency of the standing wave
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