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Q. A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value?
Q. A car speeds past a stationary police officer while travelling 105 km/h. The officer immediately begins pursuit at a constant acceleration of 12.0 km/h/s (note the mixed units), while the driver passes the officer.
How much time will it take for the police officer to catch up to the speeding car, assume that the car maintains a constant speed?
what was the initial speed given to the rock. A light plane is headed due south with the speed of 154 km/h relative to still air. After 1.06 hour, the pilot notices that they have covered only 127km and their direction is not south but southeast (4..
find out where the coyote lands in the canyon.
Three uniform thin rods, each of length L = 19 cm, form an inverted U. The vertical rods each have a mass of 12 g; the horizontal rod has a mass of 44 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass.
The drawing shows an edge-on view of two planar surfaces that intersect and are mutually perpendicular. Surface 1 has an area of 2.2 m2, while surface 2 has an area of 3.5 m2.
Objective questions based on force and acceleration.
compute the tension in the rope if the gymnast slides down the rope with a downward acceleration of magnitude 1.40 m/s^2 .
How far from the point of the drop will the rock hit the ground.
In one design, the large spring with spring constant 2.0×10^4 was placed behind the cannon. The other end of the spring braced against a post that was firmly anchored to the ship's frame.
A particle has a charge of 600 o C and a mass of 0.6 nkg. This particle is placed in a uniform electric field of 1,200 N/C. Find the a) electrostatic force acting on the mass. If the particle is free from rest what is its acceleration.
What is the minimum coefficient of friction between tires and road that would allow cars to take the turn without sliding off the road.
Which color has the highest index of refraction
what is the maximum mass it can support in freshwater. find the maximum height of the projectile is equal to its horizontal range.
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