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Two point charges lie along the y axis. A charge of q1 = -14.0 µC is at y = 5.0 m, and a charge of q2 = -2.0 µC is at y = -3.0 m. Locate the point (other than infinity) at which the total electric field is zero. y= (m)
A man stands on a frictionless platform that is rotating with an angular speed of 3.3 rad/s; his arms are outstretched and he holds a weight in each hand. find the change of the kinetic energy when the man moves his arms
consider a small raindrop and a large raindrop falling through the atmosphere. compare their terminal speeds. what are
A spring loaded ballistic pendulum gun requires an increasing force to load. When loading a ball of mass 0.054 kg, Calculate the work required to load the gun
White light is shone on a very thin layer of alcohol (n = 1.36), and above the alcohol layer, interference maxima for two wavelengths (and no other in between) are seen: one violet wavelength of 410 nm, and one red wavelength of 670 nm. What is the t..
Find the final velocity of the two balls if the ball with velocity v2i = ?21.4 cm/s has a mass equal to half that of the ball with initial velocity v1i = +25.8 cm/s
A wheel of radius 1.6m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 2.3m/s2 , what is the point's tangential speed
A 70.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top
An empty rubber balloon has a mass of .0120kg. The balloon isfilled with heliumat a density of .181 kg/m^3. At this density theballoon is spherical with a radius of .5m. If the filled balloon isfastened to a vertical line, what is the tension in t..
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.1 ms, How much charge moves during this time
A soccer player kicks a rock horizontally off a 40.0 m high cliff into a pool of water. what was the initial speed given to the rock
In a Newton's ring experiment, a plano- convex glass (n = 1.42) lens having diame- ter 11.8 cm is placed on a flat plate, What is the radius of curvature of the convex surface of the lens
for a system with an undamped natural frequency of 100 hz and a damping ratio of 0.05 what is the maximum frequency of
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