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Two point charges have a total charge of 555 µC. When placed 1.30 m apart, the force each exerts on the other is 22.7 N and is repulsive. What is the charge on each? (Round your answers to the nearest µC.)
question1a cube of ice is taken from freezer at -8.3degc and placed in a 100 g aluminium calorimeter filled with 289 g
Mercury is poured into a U-tube as shown in Figure (a). The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2.
In a crash test a car of mass 1,864 kg collides head on with a wall with speed 12.96 m/s in the -ve x direction. The collision lasts for 0.062 s. find the average net force exerted on the car by the wall
Suppose a disk is 0.50 cm thick and 4.0 cm in diameter. If this disk supports half the weight of a 90 kg person, by what fraction of its thickness does the disk compress
three children are throwing snowballs at each other. child a throws a snowball with a horizontal velocity v. if the
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
Monochromatic light (640 nm) strikes a pair of slits at normal incidence, forming the double-slit interference pattern on a screen located 1.82m from the slits. It shows the interference pattern observed on the screen. What is the slit separation.
A solenoid 7.5 cm in radius and 88m in length has 9800 uniformly spaced turns and carries a current of 3.5 A. What is the magnetic flux through this circular surface
A double-slit experiment is set up using red light (l = 714 nm). A first order bright fringe is seen at a given location on a screen. What wavelength of visible light (between 380 nm and 750 nm) would generate a dark fringe at the identical locati..
A rapidly spinning paddle wheel raises the temperature of 600mL of water from 21C to 25C. How much work is done in this process
a projectile is launched at an angle of 32 degrees to the horizontal at a speed of 322 ms. assuming g 9.81 ms2 what is
a rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. the wire has
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