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1. A positive charge is located at the origin. What is the direction of the electric potential of the positive charge?
2. Consider two conducting spheres with onehaving a larger raduus than the other. Bpth spheres carry the same amount of ecess charge. Which one of the following statements concerning the elctric potential of the two spheres is true?
3. Why it is possible to define an electrostatic potential in a region of space that contains an electrostatic field?
A small m = 3.00 g plastic ball is suspended by a L = 15.0 cm long string in a uniform electric field, because shown in Figure P15.50. If the ball is in equilibrium when the string makes a 12.0° angle with the vertical as indicated, what is the net c..
suppose that each vehicle is initially moving at 8.60 m/s and that they undergo a perfectly inelastic head-on collision. what force does the seat belt exert on each driver
a wire 50.0 cm long and under tension 400n is placed near a louderspeaker fed by an audio oscillator of variable
A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.59 x 104 rad/s to an angular speed of 4.47 x 104 rad/s. In the process, the bit turns during 3.49 x 104 rad. assuming a constant angular acceleration, how long wo..
In a two-slit interference experiment of the Young type, the aperture to screen distance is 3 m and the wavelength is 400 nm. If it is desired to have a fringe spacing of 1 mm, what is the required slit separation.
an athlete swims a length l of a pool in a time t1 and makes the return trip to the starting position in a time t2. if
Suppose that when a certain sound intensity level (in dB) doubles, the sound intensity (in W/m2) triples. Determine this sound intensity level
A 13g rifle bullet traveling 150m/s buries itself in a 3.7 kg pendulum hanging on a 2.9 m long string, which makes the pendulum swing upward in an arc. Resolve the horizontal component of the pendulum's maximum displacement.
A simple harmonic oscillator has a restoring force of 360 N/m and a mass of .59kg. What will be its maximum displacement from equilibrium
A scaffold of mass 60 kg and length 5.5 m is supported in a horizontal position by a vertical cable at each end. find the tension in the cable closer to the painter
A solid, uniform ball rolls without slipping up a hill, How fast is it moving just before it lands and How far from the foot of the cliff does the ball land
A 107-kg horizontal platform is a uniform disk of radius 1.85 m and can rotate about the vertical axis through its center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis
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