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I have a hill with a roller coaster cart on it and it goes down and around a loop-the-loop the radius of the loop is 10m Diameter=20m There is no friction, what is the height of the hill?
q1. a wheel 38 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. how far will a point on the edge
a sphere is constructed of two concentric pieces. The inner part is a solid sphere of radiu 10.0 cm made of a material with density 4000 kd/m^3. What is the average density of this sphere
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3, Calculate the weight of the rod, w
For a safe re-entry into the Earth's atmosphere, the pilots of a space capsule had to reduce their speed from 2.76 E 4 m/s to 1.02 E 4 m/s. For how long did they have to fire their engine
Two equal, positive charges, q=2.0µC are located on the x-axis, one at+0.3m and the other at -0.3m. Find the magnitude and direction of the resultant (net) force on Q
Suppose one bullet with M=5.12g moving to the right with a speed of 250 m/s directed at 21.3 degrees above the horizontal collides, What is the direction of their common velocity immediately after the collision? Measure this angle in degrees from t..
A sonar generator on a submarine on the ocean surface produces periodic ultrasonic waves at a frequency of 2.50 MHz. How deep is the ocean floor
A comet has a very elliptical orbit with a period of 121.0 y. what is its greatest distance from the Sun
A 100 arrow is shot perpendicularly from a bow whose effective spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does arrow rise.
An airplane is flying with a velocity of 89.0 at an angle of 18.0 above the horizontal. When the plane is the distance 112 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog wo..
A transparent oil with index of refraction 1.15 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. Find the frequency of the lowest note a piccolo can play
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