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An unknown piece of material with a mass of 5.1 kg and density of 1422 kg/m^3 is suspended from a string and then completely immersed in a container of water. The density of water is 1000 kg/m^3.
a.) Determine the volume of the piece of material.
b.) Determine the tension in the string after the metal is completely immersed in the container of water.
On one of the shelves in your physics lab is displayed an antique telescope. A sign underneath the instrument says that the telescope has a magnification of 20, what is the focal length fe of the eyepiece
A wire runs through a 0.7 T magnetic field as shown. The dashed lines represent the magnetic field, and the solid black line the wire. What is the magnitude of the current through the wire
Calculate the vertical component of its velocity by the time it hits the ground
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). What is the distance between the first-order red and blue fringes? (d=)
A molecule of DNA (deoxyribonucleic acid) is 2.28 µm long, Determine the effective spring constant of the molecule
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.75 105 Pa and the pipe radius is 2.60 cm, Find the speed of flow in the lower section
A rock of mass 43.00 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252N. What is the magnitude of the acceleration of the rock.
Tsunamis are deep ocean waves that usually result from the undersea earthquakes or landslides. What is the tsunami's wavelength
Two particles with charges +4e and -7e are initially very far apart, which is the change in the electric potential energy
A long straight wire carries a current of 4.5 A. The wire is horizontal in the plane of the page (screen), What is the force that acts on the electron
One mole of a ideal gas initially at temp To=0C undergoes an expansion at a constant pressure of 1atm to four times it original volume
A merry-go-round starts from rest and accelerates uniformly over 23.5 s to a final angular velocity of 6.25 rev/min. Find the person's maximum radial acceleration
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