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Musical instruments (normally) vibrate in the sfundamental state. To change the frequency ( and therefore the note) from a guitar string, the player will pin the strings down to force nodes in different places, thereby changing the wavelength.
Piano wires are struck with a hammer and produce only one note each. The piano itself has a fixed size and filling it with wires of varying lengths up to several meters long is not feasible. What is different about each piano wire to allow them to have different resonant frequencies?
Consider 10 air molecules in an otherwise empty room. Find the probability that exactly four molecules are in the front third and exactly six in the top half, exactly three molecules are both in the front third and the top half (that is, the same mol..
A track has a height that is a function of horizontal position x, given by h(x) = x^3 + 2x^2 ? 14x + 16. What kind of equilibrium exists at each of these positions
A cue stick hits a cue ball with an average force of 24 N for a duration of 0.028 s. If the mass of the ball is 0.16 kg, how fast is it moving after being struck
Two radio antennas A and B radiate in phase. Antenna B is 160 m to the right of antenna A. Think about point Q along the extension of the line connecting the antennas, a horizontal distance of 55 m to the right of antenna B.
In 0.675 s, a 6.80-kg block is pulled through a distance of 4.10 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
A computer disk is 8.0 in diameter. A reference dot on the edge of the disk is initially located at the disk accelerates steadily for 0.50, reaching 2000.
Define what is energy in physics - And what formula do we use to calculate energy and what does energy have to do with osteoporosis?
A 120 V electric coffeepot draws a current of 0.6 A. What is the resistance of its heating element
if a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through
the gases in two identical containers are at 1 atmosphere of pressure and at room temperature. one contains helium gas
A pencil is held perpendicular to the optical axis of a concave spherical mirror. The pencil is 81 cm from the center of the mirror, What is the magnification of the pencil's image
The atomic number of lead is 82. The alpha particle is a helium nucleus, with atomic number 2.
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