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In a typical fender bender, a 1500 kilogram car traveling at 48 kilometer per hour collides in elastically with a 1200 kilogram car traveling at 32 kilometer per hour in the similar direction. Determine how much of the initial kinetic energy of the cars is transformed into other forms of energy (heat, sound, etc.)?
a helicopter has 3.0 m long rotor blades rotating at an angular speed of 63 rad/s. What is tangential speed of each blade tip
A 1900 kg car traveling to the right at26 m/s is chasing a second car of the similar mass that is traveling to the right at 10 m/s. If the two cars collide and stick together, what is their speed now after the collision?
1 a 0.84 kg copper rod rests on two horizontal rails 0.56 m apart and carries a current of 65 a from one rail to the
a cooling fan is turned off when it is running at 900revmin . it turns 800 revolutions before it comes to a stop. what
A particle oscillates in simple harmonic motion with a period of 2.04 ? s and an amplitude of 3.94? cm. At t=0,it is at z=?2.0 cm and it is moving toward z = 0.
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 7:72. find rms output voltage of the transformer
The windpipe of a typical whooping crane is about 5.0 ft long. What is the lowest resonant frequency of this pipe, assuming that it is closed at one end? Assume a temperature of 39°C. Hz
q1. a 32 percent efficient electric power plant produces 900 mj of electric energy per second and discharges waste heat
Motor oil with a viscosity of 0.250 Ns/m^s is flowing through a tube that has a radius of 3.00 mm and is 1.00 m long. What is the average speed of the oil
A ball rotates in a circle of radius 20.0 cm, making one complete revolution every 2.00 s. What are (a) the speed of the ball, (b) the frequency of motion in hertz, and (c) the angular speed of the ball?
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 29.0 degrees. what is his speed as he leaves the roof
You have two weeks vacation and want to travel to a gambling space colony located 3.22 x 10^14 meters from Earth. how fast must you travel to accomplish this
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