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A disk of radius R and mass M = 10 g is rotating freely about a fixed axis through its center with angular velocity w = 11 rad/s. A spider of mass m = 0.5 g descends onto the disk and goes along for the ride. The moment of inertia of the disk is I = (1/2)MR2.(a) Which principle will allow you to calculate the angular velocity after the spider has landed?(b) Calculate the angular velocity after the spider has landed on the disk.(c) If the spider starts crawling towards the center of the disk, the angular velocity is going to:[1] increase, [2] decrease, or [3] remain the same. Give a short explanation for your answer.
A microscope slide is placed in front of a converging lens with a focal length of 2.18 cm. The lens forms an image of the slide 10.3 cm from the slide. How far is the lens from the slide if the image is real
You have a 200 ohm resistor, a 0.400 H inductor, and a 6.00 mF capacitor. Suppose you make a series circuit with the resistor, the inductor, the capacitor, Find the angular frequency omega of the voltage source
Suppose an asteroid is found that appears to be heading directly toward Earth (using Earth's location at the time of discovery). It is 4.2 A.U. away (i.e., 4.2 times the Earth-Sun distance), and travelling through the Solar System with a speed of ..
An electron enters a magnetic field with a speed of 1.41x 10^6 m/s heading north and undergoes a semicircular path towards the east with a diameter of 10cm. find the time required to complete this semicircle
Object 1 has a mass m1 and a velocity 1 = (2.87 m/s). Object 2 has a mass m2 and a velocity 2 = (3.01 m/s). The total momentum of these two objects has a magnitude of 18.0 kg • m/s and points in a direction 66.5° above the positive x-axis. Find out m..
How much energy is lost through your hands in one minute after touching on a cold surface at 10 C compared to being exposed to cold air at 10 C
a steel oil pipeline spans a river gorge 100 m wide. the inside wall is electrically heated to reduce the viscosity of the oil to ease pumping, determine the heat lost per day for the pipe in calories
A 2400 kg car moving at an initial speed of 25 m/s along a horizontal road skids to a stop in 64 m. Find the energy dissipated by friction
A car travels along a straight line at a constant speed of 58.5 mi/h for a distance d and then another distance d in the same direction at another constant speed. What is the average speed for this new trip
A bat moving with a speed of 3.25 m/s and emitting sound of 36.0 kHz approaches a moth at rest on a tree trunk. What frequency is heard by the moth
A railroad car of mass 2.3 104 kg moving at 5.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
The internal energy of the coin
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