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The electric potential at a position located a distance of 21.0 mm from a positive point charge of 8.30×10-9C and 10.9 mm from a second point charge is 1.02 kV. Compute the value of the second charge.
A jetliner is moving at a speed of 274 m/s. The vertical component of the plane's velocity is 54.0 m/s. Conclude the magnitude of the horizontal component of plane's velocity.
A railroad car of mass 2.52 x10^4 kg, is moving with a speed of 3.94 m/s. It collides and couples with three other coupled railroad cars, each of the equal mass as the single car and moving in the equal direction with an initial speed of 1.97 m/s.
A weight of 50lb is hung from the end of a pressurized pipe. The weight is applied at the centroid, so there is no torque pointing to the right. Find the maximum in-plane shear stress at the location of the element
Obtain the electric field amplitude of linearly-polarized em wave of intensity 9.99 GW/m2 moving at a speed of 1.240 × 108 m/s through diamond
A 120-V(RMS) space heater has two power settings: 750 W and 1500 W. What is the resistance of the lower power setting
A bat can detect small objects, such as an insect, whose sizeis approximately equal to one wavelength of the sound the batmakes. what is the smallest insect a bat can detect
A top spinning at 4.00 rev/s comes to a stop in 64.0 seconds. Assume that the top slows down at a constant rate. How many revolutions does it make before coming to a stop
You need to determine the density of a ceramic statue. If you suspend it from a spring scale, the scale reads 28.4N. What is the density
Work function of potassium is 2.25 eV. Find the cutoff wave length of potassium
The magnetic force on a straight 0.31 m segment of wire carrying a current of 4.5 A is 1.5 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire? Answer in units of T.
Suppose the solar insolation is 850 W/m2 and you can collect 20% of the energy that fall on the surface of a solar hot dog cooker. If you need 240 W to cook a hot dog, what is the minimum area required?
A 0.316-m-thick sheet of ice covers a lake. The airtemperature at the ice surface is -17.5 °C. Calculate the number of millimeters by whichthe ice thickens
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