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A certain key on a piano produces a sound wave that has a frequency of 4186 Hz. Using the speed of sound 343 m/s, find the wavelength of the sound wave.
You are in biology class and wish to look at a slide of petrified wood. Find the final image distance of the object. Find the height of hte final image.
If the density (mass divided by volume) of the wall material is the same as that of pure water, what is the mass (in mg) of the cell wall, assuming the cell to be spherical and the wall to be a very thin spherical shell
a thermopane window consists of two glass panes each 0.50 cm thick with a 1.0 cm thick sealed layer of air in between.
A heat engine operating between energy reserviors of 119.94 oC, How much energy must this engine extract from the hot reservior to do 1,583.1J of work
Find the tension in the rope. It will help to think about what this looks like in the center-of-mass frame.
A car has a 12 W reading lamp in the ceiling. This lamp operates with a potential difference of 12 V across it. Determine how much current flows through the lamp
1. the windows in an office building are 4.26 m by 5.26 m. on a stormy day air is blowing at 53.0 ms past a window on
Is it correct to say the difference in the patterns produced by monochromatic and white light is caused by the fact that monochromatic light waves interfere with each other when they pass through a diffraction grating, while the rays of white light d..
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation, What is the radius (in cm) of coil 2
What is the voltage of the battery? If an electron starts at the negative plate from rest, how fast is it traveling just as it hits the positive plate?
A 75 g chunk is heated to 100 Celsius and the dropped into 0.5 Kg of water initially at 22 Celsius. What is the final temperature of the chunk of metal
A 33.6 kg beam is attached to a wall with a hinge and its far end is supported by a cable. What is the horizontal component of the force exerted by the hinge on the beam
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