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Two balls having masses m and 2m are fastened to two light strings of same length l which is held horizontally[say x axis, with the mass 2m at (l,0) and mass m at (-l,0)]. The strings are kept fixed at origin. This system is released from rest. Collision between the balls is elastic in nature.
a. Find the velocities of the balls just after their collision and
b. How high will the balls rise after collision?
A roller coaster is traveling at 5 m/s at the top of a hill 40 m above the ground. What is the speed of the roller coaster when it is 15 m above the ground
q1. a 78.0 kg person holds out his arms so that his hands are 1.70 m apart. typically a persons hand makes up about
A uniformly charged, straight filament 7.00 meter in length has a total positive charge of 2.00 C. Determine the total electric flux through the cylinder
A 60kg pole vaulter running at 13m/s vaults over the bar. Her speed when she is above the bar is 0.7m/s. Neglect air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
a boat traveling at a speed of 12km/h takes 36 minutes to travel 9 km down a river. How long will it take the boat to return to the starting point
What is the spring stiffness of the entire wire, considered as a single macroscopic (large scale), very stiff spring?
A farsighted person has a near point that is 48.0 cm from her eyes. Find the focal length of the eyeglasses
a binary channel with capacity 36 k bitssec is available for pcm voic transmission. if signal is band limited to 3.2
A high-pressure gas cylinder contains 60.0 L of toxic gas at a pressure of 1.00 x 107 N/m2 and a temperature of 21.0°C. What is the final pressure in the tank
A box of canned goods slides down a ramp from street level into the basement of a grocery store with acceleration 0.63 m/s2 directed down the ramp. Find the coefficient of kinetic friction between box and ramp
A child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. How far from the dock does the boat reach the child
An automobile club plans to race a 710 kg car at the local racetrack. The car needs to be able to travel around several 160 m radius curves at 93 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of ..
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