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A 1.1 long steel wire with a radius of 0.200 mm is hanging vertically. A 18 mass is attached to the wire and released. How much does the wire stretch? Young's modulus for steel is N/m.
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 50° with the normal to the wall. What is the beam's pressure on the wall
A student yells across a street at a concrete wall. The student hears an echo 0.500 seconds later. If the speed of sound in air is 343 m/s, what is distance from the student to the wall only.
an electric field as shown in the figure. an electric field of 1000. v/m is directed toward the right. The ball has a mass of 2.00x10^-3 kg, what is the net charge on the ball
A solenoid of length 4.0 cm and diameter 0.93 cm is wound with 165 turns per cm. What is the induced emf in one of the windings
A pitcher throws a curveball that reaches the catcher in 0.55s. The ball curves because it is spinning at an average angular velocity of 280rev/min (assumed constant) on its way to catcher's mitt.
If a low-pressure sodium vapor lamp emits 50 W of yellow light, how many photons does it emit each second
a mixture of na2co3 and baco3 weighing 0.2000 g requires 30.00 ml of 0.1000 n acid for complete neutralization. what is
If the alternating current in a circuit is described by the equation I=20sin60t, what are the peak current and frequency
A very narrow hole is drilled all the way through the Earth (through its center) and evacuated (i.e. there is neither air resistance nor friction). A small object of mass m is dropped into the hole at the surface.
If a 4 cm piece of insulation is added to the pine ceiling kpine = 0.120 J/msC kinsul = 0.042 J/msC If a 4 cm piece of insulation is added to the pine ceiling , find the interface temperature for the pine and insulation.
Someone at a fifth-floor window (20 m above the ground) hurls a ball downward at 40.0° at a speed of 14.0 m/s. How long does the ball take to reach the sidewalk
Explain how long is the bullet in the target? What average force does the bullet exert on the target? What is the target's speed just after the bullet emerges?
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