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An electric fan is running on HIGH. After the LOW button ispressed, the angular speed of the fan decreases to 83.8 rad/s in1.75 s. The deceleration is 4.0 read/s2. Determine the intial angular speed of the fan.
Egg incubation is an important determinant of the sex of many reptiles. In a study of loggerhead turtles 100% of the hatchings from eggs incubated at 26°C were male, while 100% of those from eggs incubated at 32°C were female.
question1a traffic light weighing 1.20 x 102 n hangs from a vertical cable tied to two other cables that are fastened
A sound source emits sounds of frequency 215 Hz that travel through still air at 340 m/s. Find the frequency heard by the listener
when laser light of wavelenght 633.8nm passes through a diffraction grating, the first bright spot occurs at +- 18.6 degrees from the central maximum. At what angles do the third bright spots occur
A 0.80 -long metal rod is dropped vertically onto a marble floor. When the rod strikes the floor, it is determined electronically that the impact produces a 5 kHz-tone. What is the speed of sound in the rod?
A 529 kg automobile slides across an icy street at a speed of 66.0 km/h and collides with the parked car which has a mass of 856 kg. The two cars lock up and slide together. What is the velocity of the two cars just after they collide.
Weak magnetic fields can be measured at the surface of the brain. Although the currents causing these fields are quite complicated, we can estimate their size by modeling them as a current loop around the equator of a 18--diameter (the width of a ..
A series RLC circuit consists of a 49-ohm resistor and a 5.0-uF capacitor. what is the inductance of the inductor in this circuit
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad.
If camera is focused for a distance of 20m, should the lens be moved closer to the film or farther from the film to focus on an object 5 m away. Explain why.
a 11.00 kg block starts from rest at the top of a 25.0 meter long 30.0 degree incline. Its kinetic energy at the bottom of the incline is 1347.5 J
a dog is walking slowly toward a motion detector. Draw a position graph that could represent this motion. Show your work.
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