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Each of the plates of a parallel plate capacitor has an area of 10.6cm^2 and a plate separaton difference of 2mm. Suppose a 20 volt power supply is connected to this capacator. Calculate the charge on the capacator.
What is the wavelength of emitted photon of the previous question if k = 10eV/ °A2, where °A denotes Angstrom and eV: electron volt. Is the emitted photon in visible spectrum of a human eye.
A 3 kg block is observed to accelerate at a rate twice that of the 6 kg block. Is the net force acting on the 3 kg block therefore twice as large as that performing on the 6 kg block? Explain.
A meterstick pivoted about a horizontal axis through the 0-cm end is held in a horizontal position and let go. A:What is the initial tangential acceleration of the 100-cm position? In meters divided by secondsquared. B:Which position has a tangent..
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each, What is the ratio QB/QA and EB/EA
you're designing a prosthetic ankle that includes a miniature electric motor containing a 150-turn circular coil 15 mm in diameter. The motor needs to develop a maximum torque of 3.1 mN-m. what current do you need in your motors coil
Find the x and y components of vector v = (8.0 cm/s, -x direction) (answer should be in cm/s), Find the x and y components of vector d = (4.0 km, 33 degress left of the + y axis)
Two objects of the same mass, m = 1.00 kg, are projected towards each other. The first object initially has velocity (20.0m/s)i^. What is the change in kinetic energy in the collision
At the moment of release, a baseball player has a horizontal velocity component of 39 meters per second, At what angle was the ball released
An oscillating block - spring system has a mechanical energy of 1.70 J, and amplitude of 10.0 cm, and a maximum speed of 1.1 m/s. A) Find the spring constant. B)Find the mass of the block. C) Find the frequency of oscillation. (three questions)
An infinitely long, charged, thin-walled cylinder has a radius, R, of 3.0 cm. The charge per unit length is 5.40 10-9 C/m on the shell. What is the magnitude of the electric Field at radial distance r= (R/2.1) cm from central axis?
Establish the initial volume of the gas . What is the magnitude of normal force that each brake pad applies to the rim.
A point on the rim of a 0.70 m diameter grinding wheel changes speed uniformly from 12 m/s to 26 m/s in 7.5 s. What is the average angular acceleration of the wheel during this interval
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