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Two steel wires are stretched under the same tension. The first wire has a diameter of 0.515 mm, and the second wire has a diameter of 1.19 mm. If the speed of waves traveling along the first wire is 46.0 m/s, what is the speed of waves traveling along the second wire?
Three pendulums with strings of the same length and bobs of the same mass are pulled out to angles q1, q2 and q3 correspondingly and released. The approximation sin q = q holds for all three angles, with q3 > q2 > q1. How do angular frequencies of th..
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 8.30 cm-3 and their speed is about 460 km/s. Find the current density of these protons
a 2.0 kg object is dropped from a 4.0 meter height. Calculate the speed of the ball prior to striking the ground
A particle undergoes two displacements, measured from the positive x-axis, with counter- clockwise positive, find the magnitude of the second displacement in meters
An object weighing 300 N in air is immersed in water after being tied to a string connected to a balance. find the density if the object and the oil
A string with a mass per length of 2.00 gm/m is stretched with a force of 120 N between two points that are 0.400 m apart. What is the length of the organ pipe
A thin, circular disk of radius R = 30 cm is oriented in the yz-plane with its center as the origin. find the magnitude of the electric field due to the disk
Two resistors, of R1 = 2.07 ? and R2 = 6.97 ?, are connected in series to a battery with an EMF of 24.0 V, Find the current I1 through the first resistor
Two cars of 2000 kg each collide head-on while traveling at 75.0 miles per hour. What is the temperature increase of the cars
At t = 0 a grinding wheel has an angular velocity of 23.0 rad/s. It has a constant angular acceleration of 31.0 rad/s2 until a circuit breaker trips at t = 2.00 s. From then on, it turns by 432 rad as it coasts to a stop at constant angular accele..
A model rocket is fired vertically from rest. It has a net acceleration of 17.0 m/s2. How long after liftoff does the rocket return to the ground
A 0.050-kg bullet is shot to the right toward a 1.5-kg target initially at rest on a flat frictionless surface. calculate the impulse experienced by the target
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