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Two identical guitar strings are stretched with the same tension between supports that are not the same distance apart. The fundamental frequency of the higher-pitched string is 440Hz, and the speed of transverse waves in both wires is 150 m/s. How much longer is the lower-pitched string if the beat frequency is 3Hz?
A toy train is pushed forward and released at with a speed of 2.0 m/s. It rolls at a steady speed for 2.0 s, What is the magnitude of the train's acceleration after its wheel begins to stick
a deuterium nucleus (mass 2.00) moving at 650 m/s collides with a helium nucleus (mass 4.00) moving at 480 m/s in the opposite direction, what percentage of the initial total energy is lost in the collision
A steel ball of mass .5 kg is fired vertically up from the edge of a building 20 m high with an initial speed of 10 m/s. find the average resistance force that sand exerts on the ball
A metallic sphere has a charge of +3.9 nC. A negatively charged rod has a charge of -6.0 nC. What are the charges of the sphere and the rod now
A snowball rolls down a 200 m long hill at an angle of 30o above the horizon. After leaving the hill it rolls toward a 1200 kg small car on an icy horizontal surface. What is the speed of the snowball at the bottom of the hill
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
a bottle has a mass of 35 g when empty and98.45 g when filled with water. what is the specific gravity of the other fluid
a map suggest that atlanta is 730 miles in a direction of 5.00°north of east of dallas find net displacement vector from dallas to chicago
A thin, uniform, metal bar, 3 m long and weighing 90 N, is hanging vertically from the ceiling by a frictionless pivot. Find the angular speed of the bar just after the collision
An electron traveling at 15 m/s enters a 1.3 T magnetic field. The angle between the velocity and the field is 90o. Find the radius of the resulting circular path.
You clamp a straight ramp of length 51 cm making an angle of 18.0° with the horizontal table top, What time elapses from when the car leaves the ramp until it reaches the floor
what is the magnitude of the charge on each sphere. A car crashes into a wall at 45 m/s and is brought to rest in 0.1 s. compute the average force exerted on a 80 kg test dummy by the seat belt.
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