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A steel guitar string has a length of 74 cm and thickness of 0.37 mm. It is under 35N tension. Calculate the wave speed in the string. The density of steel rho=7.84 x 10^3 kg/m^3.
A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.20 m before coming into contact with the top of the beam, Find the magnitude upwards
A 118 g cube of ice at 0°C isdropped into 1.0 kg of water that was originally at 84°C. What is the final temperature of the water after the ice has melted
Two atomic particles approach each other in a head-on collision. Each particle has a mass of 1.77 x 10-25 kg. The speed of each particle is 1.94 x 108 m/s when measured by an observer standing in the laboratory.
a truck moving at 80mihr passes a police car moving 100mihr headed in the opposite direction. if the frequency of the
Children sled down a 45m -long hill inclined at 26?. At the bottom, the slope levels out. how far do the children slide on the level ground?
an electron moving parallel to the x axis has an initial speed of 3.70 x 106 ms at the origin. its speed is reduced to
A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. what pressure does each leg exert on the floor
A 9180 kg ancient treasure chest lies at the bottom of the sea. Its volume is 0.839 m3. How much force is needed to lift the chest
Calculate the work done by 100g of water as it freezes at 273K and bursts a water pipe that exerts a n opposing pressure at 1070 atm.
A car of mass 1400 kg traveling at 22 m/s is at the foot of a hill that rises 120 m in 4.4 km. Find the average power delivered by the car's engine, neglecting any frictional losses
Determine the flux of particles escaping from the exobase of Earth's atmosphere using a number density at the exobase of 10^5 particles/cm^3 and a temperature of 700K.
How does hydrogen bonding affect large molecules like proteins? What shapes do proteins take because of this effect?
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