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A research submarine has 20-cm-diameter window at 8.0 cm thick. The window is supposed to withstand a force of 1.0 x 106 N. what is the submarine's maximum safe depth in seawater? the pressure inside the sub is maintained at 1 atm.
At rest when constructed, the ring is set rotating about its axis so that the people inside experience effective free-fall acceleration equal to g. The rotation is achieved by firing two small rockets attached tangentially to opposite points on the r..
Gayle runs at a speed of 4m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5m, her brother.
At a particular instant an electron is traveling in the +y direction, with speed 7105 m/s. find the magnitude of the magnetic force on the electron
A mass-spring system oscillates with an amplitude of 5.50cm. If the spring constant is 247N/m and the mass is 584g, determine the mechanical energy of the system
According to a reliable report, in 1795 a member of the Turkish embassy in England shot an arrowto a distance of 441m. calcualte what must have been the minimum initial speed of the arrow
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 15) x 103 J, what is the speed of the skier
An astronaut is traveling in a space vehicle that has a speed of 0.515c relative to Earth. The astronaut measures his pulse rate at 69.0 per minute. What pulse rate does the Earth observer measure
A 70 kg man steps out a window and falls (from rest) 1.2 m to a sidewalk. What is his speed just before his feet strike the pavement
A 12 V battery causes a current of 0.7A through a resistor. How many joules of energy does the battery lose in a minute
when the dried up seed pod of a scotch broom plant bursts open it shoots out a seed with an initial velocity of 2.4 ms
an object weighing 310 n in air is immersed in water after being tied to a string connected to a balance. the scale now
What is the total translational kinetic energy in a test chamber filled with nitrogen (N2) at 2.03×105 Pa and 20.7°C? The dimensions of the chamber are 3.00 m × 6.00 m × 8.30 m
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