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A galvanometer has an internal resistance of 31 Ω and deflects full scale for a 45-mA current.
a) Find the value of this resistor which makes an ammeter read currents up to 40 A?
b) Determine the value of this resistor which makes a voltmeter give a full scale deflection of 300V?
A 1.5-kg mass attached to spring with a force constant of 20.N/m oscillates on a horizontal, frictionless track. At t=0, the mass is released from rest at x=10.0 cm (That is, the spring is stretched by 10.00cm)
A bicycle wheel of radius 22 cmis mounted at the middle of an axle 44 cm long. What is the angular velocity of precession
A UFO streaks across the sky at a speed of 0.90c relative to the earth. What length does the person measure for the UFO when it lands
A hydrogen atom consists of a single proton and a single electron. Experimentally it is found that it takes 13.6eV of energy to strip the electron from the proton. calculate the size of the hydrogen atom
A cord is wrapped around the rim of a solid uniform wheel 0.230 meter in radius and of mass 9.60 kilogram. Find the acceleration of the part of the cord that has already been pulled off the wheel
A 0.300-kg mass, attached to the end of a 0.750-m string, is whirled around in a smooth level table. If the highest tension that the string can withstand is 250 N, after that what highest linear speed can the mass have if the string is not to brea..
suppose a stone is thrown upward with an initial velocity of 44 ft per second and is released 4 ft above the ground.
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.45km below the surface, What's the water pressure at that depth
gas is confined in a tank at a pressure of 1.19e6 pa and a temperature of 14.2degc. if half of the gas is withdrawn and
A charged particle leaves the origin with a speed of 3.00 x 10^6 m/s at an angle of 35 degrees about the x axis. A uniform electric field, given by E = -Eo exists throughout the region (the uniform field points in the positive y direction).
A capacitor with air between its plates is charged to 70 V and then disconnected from the battery. When a piece of glass is placed between the plates, the voltage across the capacitor drops to 50 V. What is the dielectric constant of this glass?
In your lab is a steel vessel having a volume of 15.0L you charge the vessel with 2.00 moles of H2 and 1.00 moles of O2. What is the partial pressure of the hydrogen
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