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Question1
Two gerbils run in place with a linear speed of 0.60 on an exercise wheel that is twisted like a hoop. Find out an angular momentum of the system if each gerbil has a mass of 0.22 and exercise wheel has a radius of 7.5 and a mass of 6.0
Question2
If an arm is 4.25m long and pivots about one end, at what angular speed (in rpm) must it spin so that an acceleration of lander is the same as the acceleration due to gravity at the surface of Europa? The mass of Europa is 4.8 times 10^ (22) Kg and its diameter is 3138 km.
Question3
A 200g granite cube slides down a 45 degree frictionless ramp. At bottom, just as it exits onto a horizontal table, it collides with a 300g steel cube at rest. How high above table must granite cube be released to give the steel cube a speed of 2 m/s?
A circuit consists of a 259- resistor and a 0.260-H inductor. Determine the phase angle between the current and the voltage of the generator. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise
A resistance R carries a current I = (5 A) sin 120 ?t + (10 A) sin 240 ?t. What is the rms voltage across the resistor
During this process the arrow's deceleration has a magnitude of 1800 m/s2 and the block's acceleration has a magnitude of 450 m/s2
Two long, parallel wires carry currents of 0.245 A in the same direction. If the wires are 0.034 m apart, what is the force per unit length between the wires
A charge of -7.1 micro-Coulombs is placed at x = 0, y = 0. A charge of +18.7 micro-Coulombs is placed at x = 0, y = +30 cm. Another charge of +31.3 micro-Coulombs is placed at x = +31 cm, y = 0 cm.
An engine has an efficiency of 63% and produces 6461 J of work. Determine the rejected heat
A 1.00uF capacitor is connected in parallel with a 2.00uF capacitor, Find the potential on the negative plate of the 1.00uF caacitor and the equivalent capacitance of the two capacitors
A 8.40 kg object oscillates at the end of a vertical spring that has a spring constant of 2.45 multiply.gif 104 N/m. Calculate the frequency of the dampened oscillation
A playground carousel ("merry-go-round") is free to rotate frictionlessly in the horizontal plane (and air resistance is negligible). Find the person's mass
The mass of the Earth is 5.98 ? 1024 kg, and the mass of the Moon is 7.36 ? 1022 kg. Locate the center of mass of the Earth-Moon system as measured from the center of the Earth
A double convex lens has equal curvature radii of 35 cm. What is the refrative index of the lens
If one shines a laser with wavelength = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
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