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A hypodermic syringe contains a medicine with the density of water (see figure below). The barrel of the syringe has a cross-sectional area A = 2.70 10^-5 m2, and the needle has a cross-sectional area a = 1.00 10^-8 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A force Farrowbold of magnitude 1.85 N acts on the plunger, making the medicine squirt horizontally from the needle. Determine the speed of the medicine as it leaves the needle's tip.
Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.9 m/s2. Determine the force also examine the tension in the upper chain.
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
A uniform beam of mass M and length L is pinned to the wall and supported in equilibrium by a thin cable attached a distance d from the free end of the beam. Calculate the force exerted by the pin on the beam in vector form
Water flowing through a garden hose of diameter 2.79 cm fills a 24.0-L bucket in 1.30 min. What is the speed of the water leaving the end of the hose
A bullet of mass 0.0025 kg moving at 581 m/s impacts a large fixed block of wood and travels 5.40 cm before coming to rest.
An engine has a hot reservoir temperature of 900 K and a cold reservoir temperature of 608 K. What is the efficiency of the engine
Find the weight of the hanging mass when the spring, with spring constant 15.5 kN/m , has been stretched 15.1cm
a 70.9 kg boy and a 43.2 kg girl both wearing skates face each other at rest on a skating rink the boy pushes the girl
An electron is accelerated from rest through a uniform electric field of 4000 V/m. How much is the change of potential energy of this electron
questionyou might agree with me that policy deployment and project portfolio management ppm go hand-in-hand. at
Threshold freq. of metal isf0. When the light of freq. 2f0 is incident on the metal max velocity of electrons is v1 and v2
In a Young's double-slit experiment, the 7th dark fringe is located 0.029 m to the side of the central bright fringe on a flat screen, What is the wavelength of the light being used
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