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a mass of 1000kg hangs at the end of a steel rod 5.0m in length. The diameter of the rod is .8 cm and young's modulus for the rod is 210,000NM/m^2. what is the elongation of the rod?
80 mA of current flows through a resistor connected in series to a 4.25v battery. What is the resistance of the resistor
A transformer has 330 primary turns and 1340 secondary turns. The input voltage is 120 V the output current is 15 A. What are the output voltage and input current
Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass and radius of orbit. The satellites fire rockets that provide force needed to keep a circular orbit around the space stat..
A uniform circular metal disk has radius 36 cm and mass 350 g and its center is at the origin. Then a circular hole of radius 9 cm is cut out of it. What is the total linear acceleration of a piece metal at the disk's outer edge
Assume this asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 Newtons. How is the mass of the rock affected by its change in position
A 48\Omega resistor is connected across a battery, and a 29mA current flows. What is the battery's emf? What is the internal resistance
What is the little distance between the speakers for which the interference of the sound waves is destructive.
What mass (in grams) of steam at 100°C must be mixed with 403 g of ice at its melting point, in a thermally insulated container, to create liquid water at 87°C? The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg, and..
An insect 5.50mm tall is placed 25.0cm to the left of a thin planoconvex lens. The left surface of this lens is flat, Calculate the size of the image
A train slows from 40m/s to 10m/s in 3 seconds . If its mass is 50000kg what was the change in momentum? What was the train's impulse
A 23.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 33.0° with the vertical, find the child's speed at the lowest position
q1. a steel ball of mass m is released from rest at point p. it follows a smooth curved rail to point q and finally
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