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A string with a mass per length of 2.00 gm/m is stretched with a force of 150 N between two points that are 0.500 m apart. The fundamental frequency of the stretched string is in tune with the fundamental frequency of an organ pipe filled with air and open at both ends. The velocity of sound in air at 0 degrees C is 331 m/s. If the temperature increases by 20 degrees C then what is the length of the organ pipe?
An artillery shell is red with an initial velocity of 328 m/s at 51.1 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.1 s after fi ring. What are the (a) x and (b) y coordinates of the shell where it explod..
A solid, uniform disk of radius 0.250 m, Find the angular speed of the disk at the bottom of the ramp
A grade school student plans to build a 31-power telescope as a science fair project. What focal length is needed for her objective lens
How much energy would be required to break a helium nucleus into its constituents, two protons and two neutrons? The rest masses of a proton
the football has a mass of .40kg and the quarterback that threw the ball accelerated it from rest to 25 m/s in a distance of .60m. what force did the player's hand exert on the ball
The half-life of iodine-131, an isotope used in the treatment of thyroid disorders, is 8.04 days. what is the activity of the sample
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and then disconnected from the battery. Find the potential difference across each capacitor after the plate separation is doubled
A wooden raft has a mass of 45 kg. When empty it floats in water (density 1000 kg/m3) with 68% of its volume submerged. What mass of sand could be put on the raft without it sinking.
A guitar string is 108 cm long and has a mass of 3.4 g. From the bridge to the support post (L) is 70 cm, What is the frequency of the first overtone
A satellite is in elliptical orbit with a period of 6.12 x 104 s about a planet of mass 8.14 x 1024 kg. What is its angular speed at apocenter
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
A pair of flat mirrors meet to form a right angle. A beam of light is incident on one of them at a point 11.5 cm from their point of intersection, find what is the angle of incidence at the first mirror
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