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The electric potential at a position located a distance of 18.9 mm from a positive point charge of 6.80x10-9C and 13.3 mm from a second point charge is 1.26kV. Calculate the value of the second charge.
A rescue plane is flying at 300 m above the ground at 210 km/hr. It is going to drop a package of supplies to some survivors on the ground. how far from the survivors should it drop the package
A radio station broadcasts at a frequency of 600,000 Hz. Know that radio waves have a speed of 3.00 x 10^8m/s, what is wavelength of these waves.
A power factor is 0.72 lagging and the power dissipated is 375W. 120V and a resistance of 10 ohms, showing all working out.
A wheel has eight spokes and a radius of 33.0 . It is mounted on a fixed axle and is spinning at 2.80 . You want to shoot a 38.0 long arrow through the wheel, parallel to this axle, without hitting any of the spokes. Assume that the arrow and the ..
Rank the vector combinations on the basis of their angle, measured counter clockwise from the positive x axis. Vectors parallel to the positive x axis have the angle of 0. All angle measures fall between 0 and 360.
a student playing tetherball hits the ball so it moves in acircle around the central pole. What is the new angle of the ball if he hits the ball at the same tangential speed
During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 151 N on the wire. The left section of the wire makes an angle of..
A 1kg ball with a speed of 3 m/s collides head on, elastically, with a 2 kg ball moving at 1 m/s. What will be the velocity of each ball after the collision
A steel cable has a cross-sectional area 3.44 × 10-3 m2 and is kept under a tension of 3.33 × 104 N. At what speed does a transverse wave move along the cable
The aorta carries blood away from the heart at a speed of about 39 cm/s and has a radius of approximately 1.0 cm. The aorta branches eventually into a large number of tiny capillaries that distribute the blood to the various body organs.
Amy (60kg) initial velocity of 7.5 m/s is skating towards bob (90kg) and initial velocity of 4 m/s. determine amys final speed and percent of kinetic energy lost in the collision
A positively charged oil drop of mass is injected into a region of uniform electric field between two oppositely charged, horizontally oriented plates spaced 16 cm apart. what is the magnitude of the charge on the drop
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