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A hanging wire has a length of 1.90 meter. When a steel ball of mass 58 kilogram is suspended from the wire, the wire stretches by 1.70 millimeter.
If the ball is pulled down a small additional distance and released, find at what frequency will it vibrate? Suppose that the stress on the wire is less than the proportional limit.
In a thundercloud there may be an electric charge of +40 C near the top of the cloud and -40 C near the bottom of the cloud. Obtain the potential energy stored in the cloud
When an 78.3-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.08 x 103 J. By how much does the potential energy of a 19.5-kg child increase when the child climbs a normal st..
the drawing shows six point charges arranged in a rectangle. the value of q is 3.89 oc and the distance d is 0.481 m.
High-speed stroboscopic photographs show that the head of a 240-g golf club is traveling at 52 m/s just before it strikes a 46-g golf ball at rest on a tee. Find the speed of the golf ball just after impact
A scientist is investigating George Bush's brain. He should use a magnifying glass which is a simple convex lens He knows that the radius of curvature of the lans is 1.40cm. He also knows that he requires a magnification of live (m=5) to see anything..
A 5-kg fish swallows an absentminded 1-kg fish swimming towards it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity of the smaller fish before it becomes lunch?
The mean (average) of their squares
for a piece of material the steady-state flow across its thickness is 0.345x10-3 kgm2 h on the low pressure surface
Determine the height of an image for an object that is 5 inched tall. Object is placed 10.0 in from convex mirror and its located -5.00 in from rear of mirror
A capacitor is consists of two short sections of parallel wires in air. One wire is found to be of the voltage of 56 V, What is the capacitance of the two wires
Find the tension in each of the two ropes supporting a hammock if the first one is at an angle of 13.5° above the horizontal and the second is at anangle of 35.4° above the horizontal. The person sleeping in the hammock (unconcerned abouttensions ..
A 5.7 kilogram bucket of water is raised from a well by a rope. The acceleration of gravity is 9.81 m/s2. obtain the force exerted by the rope on the bucket of water
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