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A helicopter propeller blade starts from rest and experiences a constant angular acceleration of 14.5 rad/s2. Find the speed of a point on the blade 2.15 m from the axis of rotation when the blade has completed 16 revolutions.
galaxy b moves away from galaxy a at 0.505 of the speed of light. galaxy c moves away from galaxy b in the same
two capacitors one 12.0 microf and the other of unknown capacitance are connected in parallel across a battery of emf
An "energy bar" contains 21g of carbohydrates. If the energy bar was his only fuel, how far could a 68 kg person walk at 5km/hr? Express your answer using two significant figures.
A student sees a newspaper ad for an apartment that has 1830 square feet (ft2) of floor space. How many square meters of area are there
A railroad car with a mass of 2 x10^4 kg moving at 3.0 m/s collides and joins with 2 railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.20 m/s.
In order to get a flat uniform cylindrical satellite (mass of 1000 kg and a radius of 2 m) spinning at the correct rate, What is the required steady force of each rocket
What is the escape speed on a spherical asteroid whose radius is 500.0 km and whose gravitational acceleration at the surface is 3.11 m/s^2, With what speed will an object hit the asteroid
The Sun is moving in a circular orbit around the center of ourGalaxy. The radius of this orbit is 3 x 104 light-years. Calculate the period of the orbital motion in years
A 10.0g plastic ball is dropped from a height of 3.30m and is moving at 3.00m/s, How much mechanical energy was lost during the balls fall
The truck slows down uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making skid marks 62.40 m long that end at the tree. With what speed does truck then strike the tree.
A proton having an initial velocity of 22.7 Mm/s enters a uniform magnetic field of magnitude 0.320 T with a direction perpendicular to the proton's velocity. It leaves the field-filled region with velocity -22.7 Mm/s.
The speed of an ion in a particle accelerator is doubled from 0.430c to 0.860c. The initial relativistic momentum of the ion is 4.90 x 10-17 kg·m/s. find the final relativistic momentum of the ion
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