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Normal atmospheric pressure at sea level is generally considered to be equal to the pressure exerted by a column of mercury 760mm high. Calculate the corresponding pressure in inches and in Pascals.
Find out the type of mirror and how far the object is
A 1 Kg mass on a 37 degree incline is connected to a 3 kg mass on a horizontal surface. The coefficient of kinetic friction between all surfaces is 0.10 and the pulley is frictionless and applied force is F=12N.
what is the electric force between the proton and electron inside of a hydrogen atom? What must the speed of the electron be? Radius=0.47 x 10^-9.
At what angle should a curve of radius 190 m be banked, so cars can travel safely at 32 m/s without relying on friction?
How much time is neccesary to stop the crate. A block with mass m = 5.5 kg slides down an inclined plane of slope angle 10.9 ° with a constant velocity. It is then projected up the same plane with the initial speed 3.85 m/s. How far up the incline ..
The arm of a crane at a construction site is 14.4 m long, and it makes an angle of 40° with the horizontal. Assume that the upmost load the crane can handle is limited by the amount of torque the load produces at the base of the arm.
Use the worked example above to help you solve this problem. A balloon contains 4.40 moles of a monatomic ideal gas. Find the work Wenv done by the gas in expanding the balloon
A 6,400-kg truck runs into the rear of a 1,000-kg car that was stationary. What was the speed of the truck before the collision
An artificial earth satellite has a circular orbit of radius 5.91 106 m (which means it is orbiting approximately -450 km above the surface of the earth) in an equatorial plane. Find the satellite's instantaneous acceleration at time t. Magnitude? ..
A fire hose 10 cm in diameter delivers water at the rate of 21kg/s . The hose terminates in a nozzle 2.6cm in diameter. What is the flow speed in the nozzle
An eyepiece of 2.6- cm focal length and an objective of 0.32- cm focal length are used in a standard microscope
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball, How tall is the building that the child is standing on
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