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The position of an object connected to a spring varies with time according to the expression x = (4.8 cm) sin(9.3 ?t).
(a) Find the period of this motion.
s
(b) Find the frequency of the motion.
Hz
(c) Find the amplitude of the motion.
cm
(d) Find the first time after t = 0 that the object reaches the position x = 2.6 cm.
A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..
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Calculate the angle between the lines (in degrees). Use the angle in the +y direction from the crossing point. (All distances are in meters.)
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a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
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suppose that visible light enters a Plexiglas cube containing water at a 20o angle of incidence, travels through the water and exits the cube.
A cardinal (Richmondena cardinalis) of mass 3.60×10-2 kg and a baseball of mass 0.140 kg have the same kinetic energy. What is the ratio of cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum.
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