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What would be your predictions regarding major social changes over the coming years (United States of Globally) as we continue in the 21st century? These may be changes in social interaction as social media continues to expand, changes in social institutions such as family, education, health care etc.
question a 15 kg box is skid down a 6 meter high ramp to pick up speed to do a veritcal loop-the-loop whose radius is 2
A charge of -2.6 × 10-9 C is at the origin and a charge of 8.1 × 10-9 C is on x-axis at x = 3 m. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
A ball of mass 2.4 kg hangs at the end of a string 1.4 m in length from the ceiling of a room. What is the gravitational potential energy of the ball relative to the floor
A negative charge, -q, has a mass, m, and an initial velocity, v, but is infinitely far away from a fixed large positive charge of +Q and radius R such that if the negative charge continued at constant velocity it would miss the center of the fixe..
Explosive bolts separate a 840-kg communications satellite from its 560-kg booster rocket. If the impulse of the explosion is 385 N/s, at what relative speed do the satellite and booster separate?
A 61.0kg skater moving initially at 3.78m/s on rough horizontal ice comes to rest uniformly in 3.24s due to friction from the ice
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
a heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. when you gently pluck the
A convex mirror has a focal length of -33.0 cm. A 14.0-cm-tall object is located 33.0 cm in front of this mirror. Determine the (a) location and (b) size of the image.
find the speed of the test charge when it reaches the center of the square.
An object is thrown downwardwith an initial speed of 15 m/s from a height of 83 mabove the ground. At what height above the ground will the two objects pass each other
Stan raises a 1200-N piano a distance of 5.00 m using a set ofpulleys. Stan pulls in 20.0 m of rope. What is the mechanical advantage
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