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A car is accelerating while its horn is blowing. Just afterthe car passes a stationary person, the person hears a frequency of966.0 Hz. Fourteen seconds later, the frequency heard by the personhas decreases to 912.0 Hz. When the car is stationary, its hornemits a sound whose frequency is 1.00 x 103 Hz. Thespeed of sound is 343 m/s. What is the acceleration of the car?
A train car with mass m1 = 527 kg is moving to the right with a speed of v1 = 8 m/s and collides with a second train car, What is the mass of the second train car
A 1.5kg rock is whirled around in a flat circle at the end of an 85cm string. It has a linear speed of 1.80 m/s. What is the centripetal force that is acting on the rock
A solenoid of length 13 cm consists of a wire wrapped tightly around a wooden core. The magnetic field strength is 5.0 T inside the solenoid. what does the magnetic field become
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 473 m/s
A particular wire has a diameter of 1.7 mm and length of 1.3 m. If its resistance is 15 m?, what is the resistivity of the metal from which it is made
A car is normally capable of an acceleration of 3m/s2. If it is towing a trailer with half as much mass asthe car itself, what acceleration can it achieve?
Two equal charges of magnitude +1 C are separated by a distance of 1 km. What is the force acting between these two charges
A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..
q1. an airplane has a mass of 31000 kilos and takes off under influence of a constant net force of 37000 nektons. what
question1on a humid day the electric field of 2.00times104 nc is enough to produce sparks about an inch long. assume
A damped mass-spring system oscillates at 280 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.4 cm and the energy of the oscillating system is then 84 J.
If it takes light 8 ns to travel 1.655 m in an optical cable, what is the index of refraction of the cable
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