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Assume you are a scuba diver preparing for a 30m dive into sea water of density 1025 kg/m3
a) if the denisty of air at sea level is 1.3kg/m cube, calculate the pressure difference in Pa and in mmHg between the bottom and top of your seaside hotel which is 30 m tall.
b) what are the gauge and absolute pressures in Pa you experience at a depth of 30 m in the sea?
In a velocity selector, the uniform magnetic field of 1.6 T is produced by a large magnet. What voltage should be applied across the plates
A pesky 1.7 mg mosquito is annoying you as you attempt to study physics in your room, which is 4.5m wide and 2.5 m high. What is the maximum uncertainty in the horizontal position of the mosquito
The end of the spring is next to the 20- mark on the ruler.If a 3.0- mass is now attached to the end of the spring, where will end of the spring line up with the ruler marks?
A small mail bag is released from a helicopter that is descending steadily at 2.83 m/s. After 2.43 s, what is the speed of the mail- bag? How far is the mailbag below the helicopter at 2.43 s
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. How much work has been done on the spool when it reaches an angular speed of 8.40 rad/s
Consider two identical +53 microcoulomb point charges placed 58 cm apart. Calculate the work (in J) required to move the test charge to a point 8 cm closer to either of the charges
A level pipe contains a nonviscous, incompressible fluid with a density 1200 kg/m3 that is flowing steadily. What is the speed of the flow at this second position
In an L-R-C series circuit, the rms voltage across the resistor is 28.4 V, across the capacitor it is 91.4 V and across the inductor it is 49.3 V. What is the rms voltage of the source
One mole of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. find the heat added to the gas
An atom (not a hydrogen atom) absorbs a photon whose associated wavelength is 281 nm, How much net energy (in terms of eV) is absorbed by the atom
Two equally charged, 1.00 g spheres are placed with 2.00 cm between their centers. find the magnitude of the charge on each sphere
A person walks 34.0? north of east for 4.10 km. Another person walks due north and due east to arrive at the same location. How large is the east component of this second path?
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