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Problem: A mass less string of length 2? connects two hockey pucks that lie on frictionless ice. A constant horizontal force F is applied to the midpoint of the string, perpendicular to it.
Part A: How much kinetic energy is lost when the pucks collide, assuming they stick together?
I need help to find how much kinetic energy is lost when the pucks collide, assuming they stick together.
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
A roller coaster car of mass 310 kg (including passengers) travels around a horizontal curve of radius 35 m. Its speed is 17 m/s. What is the magnitude and direction of the total force exerted on the car by the track? magnintude N direction ° above t..
in the rectangle in the drawing a charge is to be placed at the empty corner to make the net force on the charge at
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.45 cm, and a -2.26 µC charge is located at y = -1.70 cm. Find the total electric potential at the origin
In an experiment, 210 g of aluminum (with a specific heat of 900 J/kg·K) at 100°C is mixed with 48.0 g of water (4186 J/kg·K) at 20°C, What is the entropy change of the aluminum
Starting from rest, an elevator accelerates uniformly between the 1st and 2nd floors, and decelerates uniformly between the 5th and 6th floors, coming to a stop at the 6th floor. What was her minimum scale reading during the trip
Three resistors are connected in series across a battery, What is the greatest voltage that the battery can have without one of the resistors burning up
A vertical spring has one end attached to the ceiling and a 2.50 kg weight attached to the other one. find how fast the weight is moving
A cannonball is shot (from ground level) with an initial horizontal velocity of 40 m/s and an initial vertical velocity of 29 m/s, What is the initial speed of the cannonball
Musicians can use beats to tune their instruments. One flute is properly tuned and plays the musical note A at exactly 440 Hz. By how much she must shorten her flute to bring it into tune
an electric point charge of q1 5.03 nc is placed at the origin of the real axis. another point charge of q2 3.93 nc
There are two stable isotopes of the element Lithium. One of them has three neutrons and the other has four. All other isotopes are radioactive withshort half lives. Using the periodic table in the textbook, find the listed mass of lithium, inamu
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