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Two identical piano wires have a fundamental frequency of 600Hz when kept under the same tension. What fractional increase in the tension of one wire lead to the occurrence of 6 beats/s when both wi
On level ground a shell is fired with an initial velocity of 74.6 at 61.1 above the horizontal and feels no appreciable air resistance.At its highest point, find the horizontal and vertical compone
Find the number of revolutions of a bicycle wheel of diameter 0.7 m when the bike goes a distance of 22 m down the street.
The brochure advertising a sports car states that the car can be moving at 100.0 km/h, and stop in 37.19 meters. What is its average acceleration during a stop from that velocity? Express your answe
A 10 m long, 200g rod with uniform mass distribution is hinged at one end and connected to a wall. It is held horizontally, and then released. What is the speed of the tip of the rod as it hits the
A trapeze artist swings in simple harmonic motion with a period of 4.4s. The acceleration of gravity is 9.81 m/s2. Calculate the length of the calbes supporting the trapeze.
the boiling temperture of water decreases by about 3c each for 1000 m rise in altitude. What is the decrease in the boiling temperture in K, F, and R for for 1000 m rise in altitude ?
A train is traveling up a 3.3 incline at a speed of 2.45 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily?
After the block is released, it leaves the spring and continues to travel upwards. What height above the point of release will the block reach if air.
An aqueous solution of 10.0 g catalase, an enzyme found in the liver, has a volume of 1.00 L at 27 o C. The solutions osmotic pressure at 27 o C is 0.74 torr. Calculate the molar mass of catalase.
A hunter wishes to cross a river that is 2.4 km wide and that flows with a speed of 6.0 km/h. The hunter uses a small powerboat that moves at a maximum speed of 9.5 km/h with respect to the water. W
Suppose 3 mol of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.25 the original volume. The gas is then allowed to expand quickly and adiabatically back to its ori
a sample of a covalent compound with a mass of 1.350 g lowers the freezing point of 10.00 g of benzene by 3.66 when dissolved. what is the molar mass of the compound?
Find expressions for the phase evolution during time throughout the experiment using the boundary condition that phase is zero when the magnetization vector M is parallel to y'.
What volume of 0.200M HCl would be required to neutralize 30.00mL of 0.158M Ca(OH)2? Don't forget stoichiometry.
A proton orbits just at the surface of a charged sphere of radius 0.83 cm. If the speed of the proton is 4.96 X105 m/s, what is the charge on the sphere?
Write down an expression for the vertical velocity w(z) in terms of the constant S, the funnel radius r(z), and the density of water rhow (also constant). Pay attention to units. You can use rhow =
A car drives north at 46 for 10 and then turns east and goes 5.0 at 60 . Finally, it goes southwest at 30 for 6.0. What is the average velocity?
The vapor pressure of benzene (C6H6) is 120 torr at 27.0C, and its normal boiling point is 80.1C. What is the molar heat of vaporiza- tion of benzene?
If the coefficient of friction between the road and the tires on a rainy day is 0.1, what is the minimum distance in which the car will stop? What is the stopping distance when the road is dry and t
What friction force must act on the bottom of the ladder to keep it from slipping? Neglect the (small) friction force between the smooth wall and the ladder.
The helical molecule acts like a spring and compresses 1.23% upon becoming charged. Determine the effective spring constant of the molecule.
120L weather balloon is filled with 5.9 moles of helium has a small leak, if the helium rate is 10mmol/hr, what is the volume after 34 hours.
If electrical energy costs $0.080/kWh, what does it cost to raise the 200 kg of water in the tank from 15 degrees Celsius to 80 degrees Celsius?
A car is moving down a street at 59 km/h. A child suddenly runs into the street. If it takes the driver 0.80 s to react and apply the brakes, how many meters will the car have moved before it begin