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Assume that the length of a string holding the suspended sphere (s) is 30cm long. A guided sphere (g) is brought close to sphere (s) and they touch. Then sphere (s) is repelled by sphere (g) a distance of 1 cm from equilibrium. What is the electrosatic repulsion between the spheres? Assume: m*g=6.5 x 10-4 N.
Assuming the answer from the previous question is 2.17x10-5N, what is the charge on both spheres (combined) from the previous question AFTER they touch and then move away from each other with a separation of 0.5cm between them?
A wave on a string has a speed of 397 m/s. If the tension in the string is 128 N and its length is 1.9 m, what is the mass of the string
A polarizer (with its preferred direction rotated 30 degrees to the vertical) is placed in a beam of unpolarizied light of intensity 1. After passing through the polarizer, the beam's intensity is
For a certain transverse wave, the distance among two successive crests is 1.20 m and eight crests pass a given point along the direction of travel every 14.50s. Compute the wave speed.
A truck is traveling at 12.6 m/s down a hill when the brakes on all four wheels lock. Find how far does the truck skid before coming to stop
q1. an antelope moving with constant acceleration covers the distance 79.0 m between two points in time 6.70 s. its
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
Harmonic light waves are emitted by a source equidistantbetween two narrow vertical slits 0.25 mm apart in a screen. What is the wavelength of the light
Let's consider how to reduce errors in the ultrasound experiment. We describe a frequency (40 kHz) and measured wavelength. What wavelengths should we measure if we change the frequency to 345 Hz, 3,450 Hz or 345,000 Hz?
A particle is located at the vector position r=(4.00i+6.00j)mand a force exerted on it is given by F=(3.00i+2.00j)N. What is the torque acting on the particle about the origin? Can there be another point about which the torque caused by thisforce on..
An insect 1.1mm tall is placed 0.9 mm beyond the focal point of the objective lens of a compound microscope. Where is the image formed by the objective lens
A race car starts from rest and travels east along a straight and level track. What is the acceleration of the car when vx = 12.0m/s
An astronaut wants to remove a bolt from a satellite in orbit. He positions himself so that he is at rest with respect to the satellite, What is wrong with his method
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