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Calculate the net force on your 0.5-cm2 eardrum that air exerts on the inside and the outside after you drive from Denver, Colorado (elevation 1609 m) to the top of Pikes Peak (elevation 4301 m). Assume that the air pressure inside and out are balanced when you leave Denver, the pressure inside the eardrum does not change, and that the density of the air is constant and is equal to 0.80 kg/m3.
a rigid structure consisting of a circular hoop of radius R and mass m, and a square made of four thin bars, each of length R and mass m. calculate the structure's rotational inertia about the axis of rotation
how fast is the mass moving when leaves the spring. What is her velocity relative to the ice surface.
A spring constant 400N/m is hung from a hook. A fish is hung from the spring and is pulled down 6.5 cm past its equilibrium position, then released to oscillate in simple harmonic motion. If the mass of the fish is 1760 g, what is the period of it..
In the velocity selector the electric field has a magnitude of 8428 V/m, and the magnitude of the magnetic field in both the velocity selector and the deflection chamber is 0.0941 T. If in the deflection chamber the ion is detected at a distance o..
A 125-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1720 N. Inside this rocket, Find the acceleration of the rocket
A uniformly charged ball of radius a and charge Q is at the center of a hollow metal shell with inner radius b and outer radius c. The hollow sphere has net charge +4Q. Decide the electric field strength in the region r? a. Determine the electric fie..
If a particle that had a charge q=6 micro C and mass 0.2 grams that moves in an uniform external electric and also magnetic fields that are E= ( 2Î +3? +9?) N/C, what is the magnitude of the particles acceleration
A patient recovering from surgery is being given fluid intravenously. The fluid has a density of 1040 kg/m3, and 9.54 10-4 m3 of it flows into the patient every five hours. Find the mass flow rate in kg/s
a pendulum is made with a 4 kg mass suspended at the end of a 75 cm thin rod. the pendulum is started at an angle 20
Take the mass of the Earth to be 5.98 × 1024 kg. If the Earth's gravitational force causes a falling 67 kg student to accelerate downward at 9.8 m/s2, Determine the upward acceleration of the Earth
a uniform thin rod of length 0.50 m and mass 4.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before the impact
In the domain of elementary particles, a natural unit of mass is the mass of a nucleon, that is, a proton or a neutron, the basic massive building blocks of ordinary matter. Given the nucleon mass as 1.67 · 10-27 kg and the gravitational consta..
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