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Calculate the magnitude of the electric field at the origin due to the following distribution of charges: +q at (x,y) = (a,a), +q at (a,-a), -q at (-a,-a) and -q at (-a,a). Where q = 8.10 x 10-7 C and a = 3.50 cm.
Set up an 8-point compass at the origin, where north points along the positive y-axis, such as that shown in the diagram to the right. What is the direction of the electric field at the origin created by the charge distribution given in the previous part?
A student could either pull or push, at an angle of 30â?? from the horizontal, a 45kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
A rocket of mass 4.42 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 65.3 ° above the horizontal and has a magnitude of 8.04 × 106 N. determine the direction of the rockets acceleration
On a typical day and at altitudes less than 11km , the temperature at an altitude y is given by T=To-alphaY , where = 12.5C and alpha=(6.00C)/(1000m)
A spring k=600N/m is placed in a vertical position with its lower end supported by a horizontal surface. What is the kinetic energy of the block at the instant it has fallen 0.50m (compressing the spring0.10m)
You have a summer job working for a major manufacturer of audio components. Find what strength magnetic field will give this force
A cubic box of volume3.6multiplied by10-2m3is filled with air at atmospheric pressure at 20°C. What is the net force on each side of the box
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 200 N/m. Two small charged objects are attached to this spring, one at each end, determine the possible algebraic signs
what is the approximate value of the impulse applied to the two-object system due to forces exerted on the system by objects outside the system >> Fnet * delta_t = (vector form)
An electric motor rotating a workshop grinding wheel at a rate of 1.16 x 102 rpm is switched off. Find through how many radians has the wheel turned during the interval found in (a)
A block of mass 4.0 kg is attached to a string and the string is attached to a spring(k=32.0N/m). What is the maximum extension of the spring
Some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway. At what angle must they be launched to just graze the ceiling
A large circular capacitor with a radius of 5 m is separated by 3 mm of air. Suppose 9 V is placed across the capacitor. What is the charge magnitude that builds up on the two plates
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