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We looked at several cases of objects moving around vertical loops in class. In one such example, we saw that if the loop had a radius of 15cm, the minimum speed an object would need at the bottom to make it all the way around without falling off was 2.71m/s.
If we replaced it with a loop with a radius of 7.5cm instead, what is the minimum speed an object would need at the bottom to make it all the way around without falling off?
Assuming that the upper surface of the ice sheet is at -13?C and the bottom surface is at 0 ?C, calculate the time it will take to form an ice sheet 25cm thick
A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once the chair is in motion, a 328N horizontal force keeps it moving at a constant velocity. A 23.00 kg chair initially at rest on a horizo..
A dab of mud (mass 0.1 kg, and sitting 0.25 m from the center) flies off a horizontal spinning wheel when the wheel takes 1 s to complete one circuit. How large is the friction force between the mud and the wheel
1. an air puck bounces back and forth between two parallel walls always traveling perpendicular to the walls. each time
A square coil is in a uniform magnetic field that is perpendicular to the plane of the coil and directed into the screen. obtain what will the induced current in the coil be
A flat sheet of crystalline quartz has athickness of 3.1 cm. It is on top of aflat sheet of diamond that has a thicknessof 3.0 cm. how far would it have traveled in a vacuum
At what energy does an electron become “relativistic”? Think electrons with kinetic energies of 50 eV, 50 keV, and 50 MeV. For each case, compute the momentum of the electron first using the non-relativistic formula for kinetic energy, and then using..
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 880 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
a thin 20-kg, 5.0 m long rod is bent into a semi circle. A 0.10 kg object is placed at the center of the curvature of the semi circle. WHat is the gravitational force of the rod on the object
One of the great things about learning at the University of Phoenix is collaborating and learning from students all over the country. I have included a link to a video for you, in it Josh Stanley will sift through the propaganda
two equally charged particles are held 3.1 x 10-3 m apart and then released from rest. the initial acceleration of the
Assume that a 16.5 m/s wind is blowing across the roof of your house. The density of air is 1.29 kg/m3. Conclude the reduction in pressure (below atmospheric pressure of stationary air) that accompanies this wind.
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