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Two small spheres A and B are moving towards each other as indicated in the figure. The weights of spheres are WA=9 [lb] and WB=15 [lb]. The velocities of spheres immediately before the impact are vA1=6 [ft/s] and vB1=2 [ft/s]. Knowing that coefficient of restitution is e=0.8.
Find: (a) velocity of sphere A after the impact, vA2 [ft/s], (b) velocity of sphere B after the impact, vB2 [ft/s], and (c) loss of energy during the impact.
The heels on a pair of woman's shoes have radii of 0.46 centimeter at the bottom. If 30% of the weight of a woman weighing 560 N is supported by each heel, calculate the stress on each heel
Two planes approach each other head-on. Each has a speed of 790km/h, and they spot each other when they are initially 7.0 km apart. How much time do the pilots have to take evasive action
An entertainer, when performing a bubble trick, forms one bubble inside another. The surface tension of the bubble liquid is ?=0.04 N m-1. What is the gauge pressure in the inner bubble
A light ray is incident on the outer surface of the lucite at an angle of 42.4° with the normal. Discover the angle the transmitted ray makes with the normal.
A Carnot air conditioner maintains the temperature in a house at 294 K on a day when the temperature outside is 308 K
An air-track glider attached to a spring oscillates between the 16.31 cm mark and the 51.41 cm mark on the track. What is the maximum speed of the glider
On a level road, a truck collides head-on with a compact car. The fenders lock and the two cars travel as one unit after the collision. We know that during the collision:
Two particles are moving in one dimension. Particle one’s position is given by xt= 5t^2+3t+2 (in meters and seconds), and particle 2's acceleration is given by a= -8t (in meters per second squared and seconds). Particle 2 has an initial velocity of 2..
The gap between the plates of a parallel plate capacitor is 6.9 mm. When the plates are charged with a 7.0 V battery, What is the magnitude of the electric field between the plates
a car alternator produces about 14 v peak output to charge the cars 12- v battery.if an alternator coil is 17 cm in
A thin spherical shell has a radius of 1.70 m. An applied torque of 920 N m imparts to the shell an angular acceleration equal to 6.70 rad/s2 about an axis through the center of the shell. What is the rotational inertia of the shell
Two square metal plates are placed parallel to each other, separated by a distance d= 2.04 cm. The plates have sides of length L = 0.580 m. One of the plates has charge Q= + 1.86×10-6 C, while the other plate has charge -Q. Calculate the magnitude..
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