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Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). At top speed the planes fly at a 60.0 o bank approximately 15.0 m from the tower. In this position the support chains make an angle of 60.0 o with the vertical. Calculate the speed of the planes.
a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle the tension in the string is 15 N. What is the speed of the ball at that point?
When a battery is connected to a 145?? resistor, the current is 3.27A. Find the internal resistance of the battery and the emf supplied by the battery
A car carrying a 77-kg test dummy crashed into a wall at 27m/s and is brought to rest in 0.1 s. demonstrate that the average force exerted by the seat belt on the dummy is 18,760N.
If the electric field in an EM wave in free space has a peak magnitude of 7.5*10^-5 v/m, what is the peak magnitude of the magnetic field strength
Imagine that the cannon from Problem #1 is actually firing into a strong wind, What is the final velocity vector of the ball when it lands
a silver dollar of mass 200gm, and diameter 8cm, has a small hole punched through it at 2 cm from the center. the coin is initially at rest in a vertical plain with the hole directly under the center, what is the angular velocity of the coin at its..
Consider a cube of sides a = 4.60 m, as shown in the diagram below. Suppose that an electric field is present and is given by E = bxn, Calculate the magnitude of the total charge within the cube
Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, Find the distance between the centers of the spheres
Density-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth?
Dan lifts a mass of 10 kg vertically upward at a constant speed of 0.2 m/s through a distance of 1 m. What is the work done by Dan
An engine absorbs 3,450 J of heat energy each cycle and expels 1,240 J. how much work does it do in one cycle
A horse canters away from its trainer in a straight line, moving 111 m away in 15.0 s. It then turns abruptly and gallops halfway back in 4.90 s.
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