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The common Eastern mole, a mammal, typically has a mass of 66 g, which corresponds to about 6.6 moles of atoms. (A mole of atoms is 6.02 × 1023 atoms. In atomic mass units (u), what is the average mass of atoms in the common Eastern mole?
A 251 kg wooden raft floats on alake. When a 76 kg man stands on theraft, it sinks 9.0 cm deeper into thewater. When he steps off, the raft vibrates for a while. What is the frequency of vibration
a capacitor is charged to a potential of 12.0v and is then connected to a voltmeter having an internal resistance of
A firm has net income for the year of $32,600. at the beginning of the year, the firm had common stock of $88,000, find the amount of the net new equity raised during the year
A bullet of mass .004 kg is fired horizontally into a wooden block of mass 1.3 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.2. The bullet remains embedded in the block, which is observed to..
Suppose that when a certain sound intensity level (in dB) doubles, the sound intensity (in W/m2) triples. Determine this sound intensity level
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object, find vthe object's speed at the bottom of the slope
If the oxygen atom at this site is chemically replaced with a sulfur atom, the spring constant of the bond is unchanged (sulfur is just below oxygen in the Periodic Table). Predict the frequency after the sulfur substitution.
An object of height 5 cm is placed 30 cm in front of spherical concave mirror. If the image is real and 10 cm high, what is the radius of curvature of the mirror?
Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0.0 m, 0.0 m), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass (or center of gravity) of this system?
The distance between two successive minima of a transverse wave is 2.45 m. Five crests of the wave pass a given point along the direction of travel every 14.5 s. (a) Find the frequency of the wave. Hz (b) Find the wave speed. m/s
A particle of mass 1g movers in a circular orbit of radius 1m under the influence of the gravitational force due to a body of mass 2kg. Calculate the total energy of the particle in Joules ?
If you had only one telescope and wanted to take both visible-light and ultraviolet pictures of stars, explain where should you locate your telescope
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