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In 1987, Marisa Canofoglia, of Italy, roller-skated at a record setting speed of 40.3km/h. If the magnitude of Canofoglia's momentum was 6.60 x 102 kg•m/s, determine what was her mass?
Two carts with masses m1 = 2:5 kg and m2 = 5:5 kg are movingtowards each other with velocities v1 = 4 m=s and v2 = 3 m=s. find the velocity of the combined carts
A 1.5 kg mass attached to ended of a spring moves as a simple harmonic oscillator. obtain what is its period of oscillation
A power plant taps steam superheated by geothermal energy to 533 K (the temperature of the hot reservoir), determine the minimum amount of rejected heat
An object of mass 5.0 kg is projected into the air at a 55° angle. It hits the ground 3.9 s later. What is its change in momentum while it is in the air
Suppose your waffle iron is rated at 0.85 kW when connected to a 2.10 102 V source. What current does the waffle iron carry
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 7.70 s. what is its velocity in unit-vector notation
Two long, parallel wires carry currents of 0.245 A in the same direction. If the wires are 0.034 m apart, Is this force attractive or repulsive
A roller coaster, travelling with an initial speed of 15 meters per second, decelerates uniformly at -7 meters per second per second to a full stop. How far does the roller coaster travel throughout its deceleration.
three forces acting on an object are given by f1 -2.00i 2.00j n f2 5.00i -3.00j n and f3 -45.oi n. the object
A ladder leans against a perfectly frictionless wall. The ladder is 3.00 meter high and the foot of the ladder is 1.50 meter away from the wall. Find the torque that this force exerts about the foot of the ladder
An electric field of 300 V/m is confined to a circular area d = 11.1 cm in diameter and directed outward perpendicular to the plane of the figure. If the field is increasing at the rate of 22.0 V/m·s, what are direction and magnitude of the magnet..
consider a collection of three point charges. two equal charges q1 q2 3.0 nc are on the x-axis at the points x 4.0 cm
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