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A 8cm radius disk with a rotational inertia of .12kgm^2 is free to rotate on a horizontal axis. A string is fastened to the surface of the disk and a 10kg mass hangs from the other end. The mass is raised by using a crank to apply a 9Nm torque to the disk. Find the acceleration of the mass.
A charged particle A exerts a force of 2.47 μN to the right on charged particleB when the particles are 13.5 mmapart. Particle B moves straight away from A tomake the distance between them 18.6 mm. What vector force does particle B then exert on A?
A 10 turn square coil of area 0.036m squared and a 20-turn circular coil are both placed perpendicular to the same changing magnetic field. What is the area of the circular coil
A 2.45m long copper wire has 1.35V across its ends. Find the electric field strength within the wire
A solenoid has a radius of 1.87 cm and 1080 turns per meter. Over a certain time interval the current varies with time according to the expression I = 2.91e0.2t, Calculate the electric field 4.54 cm from the axis of the solenoid
What is the relationship between a vector and a coordinate system? Between a vector and the number line? What properties or values of a vector depend on the coordinate system used to express it?
An RLC circuit is connected to a 220 V 60 Hz ac voltage source. Determine the power loss in the circuit
A camera has a lens w/ a 52 mm focal length and a sensor array that measures 4.82mm x 3.64 mm, If you want the giraffe to fit the longer dimension of sensory array how far away from the animal will you have to stand
A block of wood, with density 780 kg/m3 has a cubic shape with sides .0330 m long. What is the mass of the lead
The energy of sunlight hitting the earth is about 1400 W/m^2 (where 1 W= 1 J/s) in mid day. Given that the sun is about 150 million km from the earth, estimate the total output of the sun
A battery has an internal resistance of 0.75 ohm and an emf of 9 V. It is placed a cross a 5 ohm resistor and a 10 uF capacitor hooked up in parallel. a) after the capacitor has charged, what is the current through the resistor? b) what is the charge..
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo, Describe and explain how the velocity varies with time, and make a plot of Vy against t
In a photoelectric effect experiment, which metal will have a higher cutoff wavelength (i.e. the wavelength above which no electrons are emitted), silver which has a work function of 4.73 eV or lead which has a work function of 4.14 eV? Explain why.
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