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For a certain transverse wave, the distance among two successive crests is 1.20 m and eight crests pass a given point along the direction of travel every 14.50s. Compute the wave speed.
The liquid of density p in a horizontal pipe of diameter d1 before a constriction is at pressure P1 and flowing with the speed v1
a steel ball is dropped from a buildings roof and passes a window taking 0.115 s to fall from the top to the bottom of
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
an aluminum cup contains 225 g of water and a 40 g copper stirrer all at 27degc. a 420 g sample of silver at an initial
q1. a thunderstorm drops 6.0cm of rain on a city that covers an area of 33 km by 45 km. approximation the number of
When two identical ions are separated by a distance of 8.3×10?10m , the electrostatic force each exerts on the other is 5.4×10?9N How many electrons are missing from each ion
A machine part rotates at an angular speed of 0.60 rad/s; itsspeed is then increased to 2.2 rad/s at an angular acceletation of0.70 rad/s2
two uniform solid cylinders each rotating about its central longitudinal axis have the same mass of 4.90 kg and rotate
A 0.58-kg mass is hanging from a spring with spring constant 20 N/m. Then the mass is displaced from the equilibrium by 2.9 cm and let go. estimate the resulting angular frequency of the oscillation
llustrate what actions would you recommend to Carlos Fernandez to help Grupo Modelo sustain or improve its competitive position, especially its international operations and its long-term financial performance?
You wish to buy a motor that will be used to lift a30-kg bundle of shingles from the ground to the roof of a house. Determine the minimum torque that the motor must be able to provide
A 2-m-long, 0.2-m-diameter cylindrical pine log (density = 513kg/m^3) is suspended by a crane in the horizontal position. determine the angle (theta) the cable will make with the horizontal
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