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A 480 kilogram van moving at 16.2 m/s hits from behind, another van of mass 570 kilogram moving at 13.3 m/s in the similar direction. The second car's new velocity is 15.1 m/s. Evaluate the coefficient of restitution for the collision?
The parallel metal plate of a capacitor is separated by a distance of 0.5cm and is connected to a 90v battery. Discover an electric field between them and the surface charge density .
two large parallel metal plates are 2.5 cm apart and have charges of equal magnitudes but opposite signs on their
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
A 0.075 kilogram toy airplane is tied to the ceiling with a string. When the airplane's motor is started, Calculate the angle the string makes with the vertical
A wheel (radius 0.6 m) is rolling on a horizontal surface with a center of mass acceleration of 0.7 m/s2. compute the friction force acting between the wheel and the surface
The owner of a van installs a rear-window lens that has a focal length of -0.302 meter. Evaluate how tall is the person
Asquare loop of wire surrounds a solenoid. The side of the square is0.1 m, while the radius of the solenoid is 0.025 m. The square loop has a resistanceof 30 Ω. The solenoid has 500 turns and is 0.3 m long
archaeologists often find only parts of ancient human remains. for example they may find a small finger bone called the
When there's a 277 Vrms across a device, the peak value of the alternating current is 4.1 A. How much power does the device comsume
A string is wrapped around a disk of mass m = 1.7 kg and radius R = 0.08 m. Starting from rest, you pull the string with a constant force F = 7 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance..
a gymnast with mass 47.0 kg stands on the end of a uniform balance beam as shown in the figure. the beam is 4.60 m long
Blocks A (mass 2.00 kg) and B (mass 15.00 kg) move on a frictionless, horizontal surface. Find the velocity of each block after they have moved apart
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