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A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.863 rad/s. You, with a mass of 69.3 kg, walk clockwise around the platform along its edge at the speed of 1.19 m/s with respect to the platform. Your 20.5-kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 18.9-kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 93.1 kg and radius 1.87 m. Calculate the total angular momentum of the system.
The number of electrons in a copper penny is approximately 10*10^23, How large would the force be on an object if it carried this charge and were repelled by an equal charge one meter away?
The charges are fixed to the corners of a 0.44-m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square.
If the electric field in an EM wave in free space has a peak magnitude of 7.5*10^-5 v/m, what is the peak magnitude of the magnetic field strength
What is the minimum speed need to drive through a banked turn such a car won't slip down the road
A proton orbits a long charged wire, making 1.80 revolutions per second. The radius of the orbit is 1.10. What is the wire's linear charge density
A source delivers an AC voltage of the form ?v = 98.0 sin (80?t), where ?v is in volts and t is in seconds, to a capacitor. The maximum current in the circuit is 0.500 A. Find the rms voltage of the source
In a hydraulic system with a large and a small piston, you wish to lift a 1130 kg car sitting on the large piston that has a diameter of 28.2 cm, What is the diameter of the small piston
question1two identical spin-12 particles are confined within a cubical box with sides d10-8 cm in length. a short range
Four point charges have equal magnitudes. Three are positive, and one is negative, Calculate the ratio of the largest to the smallest net force magnitude
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.8 s after being hit, How high is the fence
Two charges of equal magnitude exert an attractive force of 2.5×10-4 N on each other. If the magnitude of each charge is +3.0? C, how far apart are the charges
An electron has a velocity of 6.0 x 10^6 m/s in the positive x direction at a point where the magnetic field has the components Bx=3.0T, What is the magnitude of the acceleration at this point
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