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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 boy has a height of 1 m and a mass of 20 kilogram. He drinks a magic potion and becomes a giant of 4 m in height (but retains his previous proportions). Determine what is his mass now
at the top of the loop what is the magnitude of the force exerted on a 55kg rider by the roller-coaster seat?nbspat the
A rock is thrown off a 80.0 m limestone cliff at an angle of 38 degrees below the horizontal with an intitial velocity of 22.0m/s. What is the total time in flight
A converging lens has a focal length of f = 43 cm for blue light and f = 53 cm for red light. An object is placed 140 cm in front of the lens and is illuminated with white light. Chromatic aberration causes the image formed with blue light to be a..
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. What is the total mass of the wire
A camera is supplied with two interchangeable lenses, whose focal lengths are 35.0 and 150.0 mm. What is the height (including sign) of her image on the film
A basketball player throws the ball at a 53° angle above the horizontal to a hoop whose centre is located a horizontal distance L = 8.70 m from the point of release and at a height h = 0.70 m above it. What initial speed is required
q1. a rectangular block of ice 13 m on each side and 1.4 m thick floats in sea water. the density of the sea water is
When an automobile moves at 15.0 m/s, its axles experience an emf of 0.00110 v. find the length of each axle
A converging lens has a front surface with radius of curvature of 10cm and the black surface has a radius of curvature of 20cm and it is made from material with an index of refraction of 2.5. What is the focal length of the lens
A space vehicle is travelling at 5800 km/h relative to the Earth when the exhausted rocket motor is disengaged and sent backward with a speed of 74km/h relative to the command module. The mass of the motor is four times the mass of the module. What i..
A billiard ball moving at 1.65 m/s in the +x-direction collides with an identical ball initially at rest. Find both balls post-collision velocities
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