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A boy of mass 35 kg and a girl of mass 40 kg are skating towards each other with speeds of 2.5 m/s, and 2.0 m/s respectively. When they meet, they clasp hands and continue to move together.
a. Assume that there is no friction, and find their combined velocity after they meet.
b. Check if the kinetic energy is conserved in this collision. How would you classify the collision? If the kinetic energy is not conserved, find the percentage loss in kinetic energy.
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A car with a mass of 950 kg is moving to the right with a constant speed of 1.69 m/s, What is the total force on the car if it is moving to the left
A football is thrown with an initial upward velocity component of 12.5m/s and a horizontal velocity component of 17.0m/s. How far has the football traveled horizontally from its original position
An object is moving in simple harmonic motion with amplitude 0.28 m and total energy 2.5 J. What is the total energy of the system now
A mass on a spring bobs up and down over a distance of 25 cm from the top to the bottom of its path twice each second. What are its period and amplitude
A 200 g ball on a 60 cm long string is swung in a vertical circle about a point 200cm above the floor. The tension in the string when the ball is at very bottom of the circle is 4.4 N.
Physics - Potential Energy - Gravitational Force A satellite has a mass of 100 kg and is located at 2.00 x 10^ 6 m above the surface of earth. (A) What is the potential energy associated with the satellite at this location?
A generator with an rms voltage of 130V is connected in series to a resistor 3.25 kilo-ohm, At what frequency must this circuit be operated for the current to lead the voltage by 24.0 degrees
When light is incident from air perpendicular to the surface of a certain medium, Find the speed of light in the medium
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