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When four people with a combinedmass of 340kg sit down in a car, they findthat the car drops 0.50cm lower on its springs. Thenthey get out of the car and bounce it up and down. What is the frequency of the car's vibration if its mass (when it is empty) is 2.0 x 103 kg?
Hz
A runner is practicing on a circular track that is 675 m in circumference. If he runs halfway around the track and stops at the farthest eastern point of the track, what is the distance he traveled
In a RLC circuit, the rms current is 7.00 A, the maximum voltage 230. V and the current lags behind the voltage by 53.0 degrees. Find the average power dissipated in the circuit
Illustrate energy bar graphs to solve the problem . What is amplitude of the oscillations.
During the transition of the metal from the boiler to the cup, some heat may have been lost to the air. If no heat was lost, how would your values for the final temperature change?
In a double-star system, two stars of mass 6.0 *10^30 kg eachrotate about the system's center of mass at a radius of 2.0 * 10^11m. What is their common angular speed?
It is said that Galileo discovered a basic principle of the pendulum - that period is independent of the amplitude - by using his pulse to time the period of swinging lamps in the cathedral as they swayed in the breeze. assume that one oscillation..
Two lenses, one converging with a focal length of 20.0cm and one diverging with a focal length of -12.0cm, Find the final image from the second lens. Follow the sign conventions
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.65kg ) at rest. You begin pulling her forward, Calculate the impulse you imparted to the wagon and its passenger
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, What is its kinetic energy at the end of this interval
The driver of a 1800 {rm kg} car travelling on a horizontal road at 100 {rm km}/{rm h} suddenly applies the brakes. Because of a slippery pavement, the friction of the road on the tires of the car, which is what slows down the car, is 20.0% of the..
A series circuit has a peak voltage of 114 and a peak current of 3 . If the current lags the voltage by 42 , what is the average power of the circuit?
A generator delivers an AC voltage of the form ?v = (90 V) sin (95?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the following. (a) rms voltage of the generator V (b) frequency of the generator Hz (c) rms current A (d) reactan..
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