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A car is accelerating while its horn is blowing. Just after the car passes a stationary person, the person hears a frequency of 960 Hz. 17.5 seconds later, the frequency heard by the person has decreased to 927 Hz. When the car is stationary, its horn emits a sound whose frequency is 1060 Hz. The speed of sound is 343 m/s. What is the acceleration of the car? Assume that the velocity of the car is always in the positive direction.
A caterpillar climbs up a one-meter wall. For every 3 cm it climbs up, it slides down 1 cm. It takes 10 minutes for the caterpillar to climb to the top. Compute the speed at which the caterpillar travels.
Define how Pascal's law addresses the pressure in a fluid at different heights (or depths) before addressing the question and would you apply it in this case
Two 50.0 N weights are suspended at opposite ends of a rope that passes over a light, frictionless pulley, find the tension in the rope and chain
A particle executes linear harmonic motion in one dimension with a frequency of 0.25 Hz about the point x=0. Determine an equation of motion for this oscillator
q1. a ball in flight is recorded and analyzed using digital video analysis software. the analysis produced the result
A 100 arrow is shot vertically from a bow whose efficient spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does the arrow rise .
A 46 gram golf ball is hit and launched at 194.4 km/hr at 30 degrees above the horizontal. How much Kinetic energy does the ball have at the maximum height
A car travelling at 19 {rm m/s} runs out of gas while travelling up a 21^circ slope. How far would the car go up the hill before it runs out of gas.
an arbituary shape of copper holds excess charge that is in static equilibrium. In which direction does the electric field, created by the excess charge, point at an exterior portion of the copper chape
A uniform 110 g rod with length 70 cm rotates in a horizontal plane about a fixed, vertical, frictionless pin through its center. Find the angular speed of the system at the instant the beads reach the ends of the rod
you kick a soccer ball 15 meters without hurting your foot much. you then pump the ball up until it is really hard the
An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4.00 cm.
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