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A heavy string is tied at one end to a movable support and to a light thread at the other end as shown in figure (15-E12). The thread goes over a fixed pulley and supports a weight to produce a tension. The lowest frequency with which the heavy string resonates is 120 Hz. If the movable support is pushed to the right by 10 cm so that the joint is placed on the pulley, what will be the minimum frequency at which the heavy string can resonate?
A 1.50 ? 103-kg car starts from rest and accelerates uniformly to 15.2 m/s in 11.3 s. Find the average power developed by the engine
Suppose height of a person is 1.65 m. Consider a cylindrical segment of a bloodvessel 2.00 cm long and 1.50 mm in diameter. What additional outward force would such a vessel need
The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 above the horizontal, some of the tiny critters have reached a maximum height of 52.7 above the level ground. What was the takeoff speed..
What should be the banking angle of the curve so that the force of the pavement on the tires of the car is in the normal direction? Answer in units of degrees.
A 154.7 mCi sample of a radioactive isotope is purchased by a medical supply house. If the sample has a half-life of 14 days, How long will it keep before its activity is reduced
a guitar string has a tension t length l and diameter d. give the multiplicative factor by which the fundamental
If the car is now at rest and the pendulum undergoes S.H.M. would its time be shorter of longer than that calculated in (b) explain your answer.
One mole of an ideal gas does 1408 J of work on the surroundings as it expands isother- mally to a final pressure of 1.6 atm and vol- ume of 29L. Find out the initial volume.
The image behind a convex mirror (radius of curvature = 72 cm) is located 14 cm behind the mirror. Where is the object located? What is the magnification of the mirror?
A 4.0-Kg particle is moving with a velocity 20.0 m/s in the +xdirection when it is at position x=1.0 For x>1.0 m, the particle experiences a single force F= (α-βx)i, where α=36.0N and β=52.0 N/m. Determine the work done by the force on the particle..
The maximum speed of a 3.7-kg mass attached to a spring is 0.67 m/s , and the maximum force exerted on the mass is 12 N. What is the amplitude of motion for this mass? What is the force constant of the spring?
Water is streaming downward from a faucet opening by an area of 3.0 × 10−5 m2. It leaves the faucet by a speed of 5.0m/s. The cross-sectional area of the stream 0.50m below the faucet is:
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