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Two-point charges -40 nC and -20 nC are placed on (diagonally) opposite corners of a 40-cm 30-cm rectangle. If point B is the corner of this rectangle nearest the -40 nC charge and point A is located at the intersection of the diagonals of the rectangle, determine the potential difference, VA - VB.
a 2000 kg car is traveling at 20.0 ms and then puts on the brakes and comes to a complete stop. the heat generated at
Two 22.0 cm focal-length converging lenses are placed 16.5 cm apart. An object is placed 35.0 cm in front of one lens. Where will the final image formed with the second lens be located?(in cm beyond the second lens)
An extreme skier, starting from rest, coasts down a mountainthat makes an angle 25.0° with the horizontal. How fast is shegoing just before she lands
two converging lenses are separated by 23.40 cm. the focal length of each lens is 12.20 cm. an object is placed 36.40
Determine the lowest frequency sound produced by the vibrating sting .
An automobile with a mass of 1360 kg has 3.05 m between the front and rear axles. Its center of gravity is located 1.78 m behind the front axle. With the automobile on level ground, decide the magnitude of the force from the ground on a) each wheel (..
A solid sphere and a shell sphere roll down an incline. Which one gets to the bottom first and why
A space vehicle is coasting at a constant velocity of 21.5 m/s in the +y direction relative to a space station. Find the direction of the vehicle's velocity relative to the space station
an astronaut is connected to her spacecraft by a 35-m-long tether cord as she and the spacecraft orbit earth in a
What average power must be supplied to push a 5.35-kg block from rest to 12.0 m/s in 5.41 s when the coefficient of kinetic friction between the block and surface is 0.209
A 230-g hockey puck originally sliding on ice in the +x direction with a speed of 0.50 m/s collides with another puck of equal mass at rest. What is the velocity of the other puck
Speculate on how this difference might influence a meteorologist's ability to represent accurately the state of the atmosphere.
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