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An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 19.4 km, and 26.0° south of west. The second aircraft is at altitude 1000 m, horizontal distance 17.0 km, and 17.0° south of west. What is the distance between the two aircraft? (Place the x axis west, the y axis south, and the z axis vertical.)
A box of 10 kg is being pulled across a floor with a tension force of 50 N. Assume the box started from rest and reached a speed of 2 m/s
In a tungsten atom, what is the kinetic energy of an L-shell electron ejected by a photon that was created during the M-K shell transition of the atom?
It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.10 m/s2. Find the acceleration in this situation at the moment the hawk's speed is 4.25 m/s. Find out the magnitude and direction (degrees)
A hollow, thin-walled sphere of mass 12.0kg and diameter 47.0cm is rotating about an axle through its center. At the time 4.00s , find the angular momentum of the sphere
If the circular surface of the upper end of the rod is maintained at 290 K, what is the approximate boil-off rate of liquid helium after the lower half has reached 4.20 K
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
Calculate the electrostatic force exerted on the point charge by the cylinder and what level of uncertainty would be acceptable in the initial position? You may assume that the uncertainty in all other parameters is negligible
A solid sphere of mass 6.0 kg is mounted on a vertical axis and can rotate freely without friction, What is the speed of the block after it has fallen 80 cm
A satilite of mass 5500 kg orbits the Earth and has a period of 6600s. Dertermine the radius of its circular orbit and the altitude of the satelite
A particle with a mass of 0.420 kg is attached to a horizontal spring with a force constant of 34.02 N/m. At the moment t = 0, Find the length of a simple pendulum with the same period
An ion source is producing 6Li ions, which have mass 9.99 x10-27 kg and charge +e. The ions are accelerated by a potential difference of 30 kV and pass horizontally into the region in which there is a uniform vertical magnetic field of magnitude B..
Pennies today are copper-covered zinc, What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral
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