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A simple pendulum is made from a string that is 0.60m inlength with a mass of 0.2kg attached to the free end. The mass ispulled to one side through a small angle and released fromrest.
A) What is the angular frequency and period of the pendulum? If themass were doubled, to 0.4kg, what would be the new angular frequency and period?
B) How long would it take for the mass to reach its greatest speed?
C) If this pendulum were placed on the moon, would its periodbe greater or less than on the earth? Why?
If the speed of sound is 1100 feet per second and a tuning fork oscillates at 440 cycles per second, what is the wavelength of sound produced.
A 2.0kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 360m/s, find the speed of the block immediately after the bullet exits
A 0.5 meter diameter bicycle wheel is initially rotating at 60RPM rolls to rest at a constant rate in 10 seconds. What is its initial angular speed in radians per second
A person pulls on a 50kg desk with a 200 N force acting at a 30 degree angle above the horizontal. The desk does not budge.
The human body must maintain its core temperature inside a rather narrow range around 37°C. Metabolic processes, notably muscular exertion, convert chemical energy into internal energy deep in the interior. From the interior, energy must flow out ..
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.77x1011 m apart. The larger of the two stars has a mass of 3.63x1030 kg, and its center is 2.03x1011 m from the system's center of mass. What is the ma..
A refracting telescope has an angular magnification of -92.00. The length of the barrel is 1.100 m. What are the focal lengths of the objective
The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.00 g/cm3.
Neglect air resitance. Find rocket's kinetic energy when the rocket is 1000 km above Earth's surface. Illustrate what is the max heigh that the rocket reaches.
Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, How much energy does our body lose in one second
A daredevil is shot out of a cannon at 43 degrees to the horizontal with an initial seed of 25m/s. A net is positioned at a horizontal distance of of 50m from the cannon from which it is shot. At what height above cannon should the net be placed i..
A cylinder with Radius R and mass M has a density that increases linearly with distance r from the cylinder axis, p = ar. Calculate the moment of inertia of the cylinder about a longitudinal axis through its center in terms of M and R
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