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A 4020 kg roller coaster crests a 24 m high hill with negligible speed. The roller coaster loses 44 kJ of energy on the way down. Determine the speed of the roller coaster at the bottom of the hill. (m/s)
a proton with a momentum of 200 GeV/c collides with a proton at rest. Calculate the total energy in the center-of-mass system
A positive charge Q1 = 3.00 µC is in the origin and a negative charge Q2 = -5.00 µC is at point x = 11m. Find the position of point P between the charges, where the electric potential equals zero.
What was the final temperature of the coins. What is the train's acceleration after its wheel begins to stick.
The primary winding of a transformer has 1200 turns, and is connected to 120 V A.C. (r.m.s. value). The secondary has a 25 W load resistor, Continuing, how many turns are in the secondary winding
A nuclear power plant draws 3.5 x 10^6L/min of cooling water from the ocean, what is the water speed in each pipe
A baseball is thrown from the roof of 23.5 m-tall building with an initial velocity of magnitude 10.6 m/s and directed at an angle of 52.5 degrees above the horizontal. What is the speed of the ball just before it strikes the ground
What key considerations are involved in setting up a computer network for an integrated health care system and how do integrated systems affect the installation of networks.
In a certain oscillating LC circuit the total energy is converted from electric energy in the capacitor to magnetic energy in the inductor in 1.30 µs. What is the frequency of oscillation
A dynamite blast at a quarry launches a rock straight upward, and 2s later it is rising at a rate of 15m/s. assume air resistance has no effect on the rock, analyse its speed (a) at launch and (b) 5s after launch.
A tennis ball gun launches tennis balls at 17.6 m/s . It's pointed straight up and launches one ball; 2.0 s later, it launches a second ball. I already found - At what time (after the first launch) are the two balls at the same height? = 2.8s What..
A 1.25 meter long wire has a mass of 150 grams. The wire is stretched with a force of 2 Newtons. What is the velocity of a wave over the wire
A 78 ohm resistor is connected in series with a 275 mH inductor and a 1 micro farad capacitor. Find the effective voltage V rms across the capacitor
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