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A pair of speaker produces a sound level of 100dB at a point. If one speaker is turned off, what would be the sound level? Assume both speaker produces same level of sound.
A large merry-go-round completes one revolution every 36.0 s. Compute the acceleration of a child seated on it
Illustrate what would be the relative strengths and weaknesses of this study? What ethical considerations must be taken into account while undertaking this study?
A small statue has a height of 3.2 cm and is placed in front of a concave mirror. Find the focal length of the mirror
A parallel plate capacitor of capacitance C0 has plateof area A with separation d between them. When it isconnected to a battery of voltage V0 it has chargeof magnitude Q0 on its plates.
The focal length of a simple magnifier is 7.00 cm. Suppose the magnifier to be a thin lens placed very close to the eye. How far in front of the magnifier must an object be placed if the image is formed at the observer's near point, 25.0 cm in front ..
A block of mass m = 12.0 kg has a speed v and is behind a block of mass M=40.0 Kg that a speed 0.500 m/s The surface is frictionless . the Block collide and stick together. After the collision, the blocks have a common speed of 0.900 m/s. what was in..
A car weighing 7600 Newton moves along a level highway with a speed of 100 km/h. estimate the new speed of car on the hill
An ideal step-down transformer is used to convert the AC voltage from the power line at 120V to 5.0V in an adapter for your laptop computer. The primary coil has 2000-turns, how many turns are in a secondary coil?
A spherical brass shell has an interior volume of 1.60 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.86 x 10-3 m3. The space between the steel ball and the inner surface of the brass shell is filled completel..
Light waves with two dissimilar wavelengths, 632 nm and 474nm, pass simultaneously during a single slit whose width is 7.15e-5m and strike a screen 1.20 m from the slit. Two diffraction patterns are formed on the screen.
Two objects attract each other with a gravitational force of magnitude 9.30 10-9 N when separated by 19.2 cm. If the total mass of the objects is 5.04 kg, what is the mass of each
A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. At what rate is the energy being dissipated
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