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A wheel is spinning at 47 rad/s. It undergoes an angular acceleration of 21rad/s2 until it reaches an angular velocity of 489 rad/s.
1. Decide how long it took to spin up.
2. Decide how many revolutions it made while spinning up.
the radius of electron is 10 -18 m . what is the minimum momentum transfer order of magnitude required to resolve the
You jump from the top of a boulder to the ground 1.85 m below. Calculate your deceleration on landing
A 1000 kg race car makes three and half laps around a circular race track with a 400m radius in 180 sec at a constant speed. determine the car's linear speed
an elevator can have a maximum mass 1000kg in it and the elevator has a mass of 2000kg. if the elevator can accelerate
A generator of frequency 2500 Hzdrives a series RLC circuit with an emf amplitude of 120V. The resistance is 3.1 , the capacitance is1.60 µF, What is the current amplitude
In atwood's machine two masses m1 and m2 hang vertically, connected over a frictionless pulley. Evaluate the acceleration numerically
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point. what is the magnitude of the charge on each sphere
a calculate the binding energy of 23na using the table of atomic masses. express your answer in unified mass units but
When an object moves through a fluid, the fluid exerts a viscous force on the object that tends to slow it down. What is the viscous force on a sphere of radius R = 4.90 10-4 m that is falling through water
An electron enters a region of space containing a uniform 0.0000201-T magnetic field. Find the radius of the electrons path, and the frequency of the motion
A 2.10-cm-high insect is 1.50m from a 139-mm-focal-length lens. Where is the image? Follow the sign conventions, How high is the image
A planet of total mass M and radius R has a non-uniform density such that p(r) = po (1-r/R), Determine the gravitational field g(r) at a point r ? R inside the planet
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