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A certain string on a piano is tuned to produce middle C (f1= 261.63 Hz) by carefully adjusting the tension in the string. What is the frequency of the same string if the tension is doubled?
A ski starts from rest and slides down a 22° incline 75 m long. If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? If there is snow level at foot of the incline and it has the same coefficient of friction, ..
A rocket-powered hockey puck has a thrust of 1.60N and a total mass of 2.10kg. How far does the puck land from the base of the table
Through what maximum angle θmax will the reference line turn in the positive direction? What are (b) first and (c) second times the reference line will be at θ = θmax/3? At what (d) negative time and (e) positive time will the reference line be at..
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.5 N-s, what is the mass of the ball
The main components of a thermal/steam power plant are: Pump, boiler, steam turbine, condenser and generator. which one operates at higher temperature and pressure
A parallel combination of a 1.09-?F capacitor and a 2.81-?F one is connected in series to a 4.33-?F capacitor. This three-capacitor combination is connected to a 15.3-V battery
An RL series circuit has R = 72.0? and L = 2.20mH . The series combination is connected across a 155V (rms), 58Hz power supply. Find the impedance of the RL combination
If the density of conduction electrons is 10^27 m^3 and the wire has a radius of one millimeter, what is the electrical current through this wire
Two balls of mass 0.6 kg and 0.8 kg are connected by a low-mass spring. This device is thrown through the air with low speed, what is the total momentum of the device
Find out the frequency of the fourth harmonic if the string is fixed at one end and free at other. (That is, if the free end is attached to a long string of negligible mass.)
The space shuttle performs a retro burn for 3.5min to go from an orbital velocity of 17,500mph to re-entry velocity of 5000mph.
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