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1) On a banked race track, the smallest circular path on which cars can move has a radius of 120 m, while the largest has a radius 155 m, as the drawing illustrates. The height of the outer wall is 18 m.
(a) Find the smallest speed at which cars can move on this track without relying on friction. m/s
(b) Find the largest speed at which cars can move on this track without relying on friction. m/s
2) A jet flying at 105 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 2.04 105 kg. Calculate the magnitude of the necessary lifting force.
While running home from second base a 67 kg runner rounds third base at a speed of 3.1 m/s, What is the centripetal force of this turn on third base
A moth at about eye level is 11 cm in front of a plane mirror; you are behind the moth, 25 cm from the mirror. What is the distance between your eyes
Two point charges are on the y-axis, one of magnitude 3.0 ? 10-9 C at the origin and a second of magnitude 6.0 ? 10-9 C at the point y = 25 cm
Two point charges 3.0cm apart have an electric potential energy -130J . The total charge is 15nC. What is the lesser charge
A cart of mass m1=0.5 kg moves with a velocity of 0.9 m/s to the right on a frictionless track. What is the velocity of each cart after the collision
A parallel-plate capacitor with only air between the plates is charged by connecting it to a battery, A voltmeter reads 46.0V when placed across the capacitor, What is the dielectric constant of this material
A spherical mirror is to be used to fom an image 5 times as tall as the object on a screen positioned 1 meter from the mirror. Find the type of mirror
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, What length will you choose for your wire
Question on a planet similar to Earth
The mass density of an object is 17.3 g/cc, and its volume is determined to be 28.2 cc, What is the mass of the object
A gas sample enclosed in a rigid metal container at room temperature (20.0°C) has an absolute pressure p1. The container is immersed in hot water until it warms to 40.0°C. What is the new absolute pressure p2?
Multiple-Concept Example 7 deals with the concepts that are important in this problem. Find the minimum coefficient of friction necessary to allow the penny to rotate along with the disk
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