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A diver 60 m deep in 10 C fresh water exhales a 1.5-cm-diameter bubble.
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 C ? Assume that the air bubble is always in thermal equilibrium with the surrounding water.
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.8rad/s2 for 7.6s, Find the total number of revolutions turned
The cable of the 1300 kg elevator cab in the figure snaps when the cab is at rest at the first floor, Find the speed of the cab just before it hits the spring
A 28-turn circular coil of radius 4.20 cm and resistance 1.00 %u03A9 is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.80 s
A microscope has an objective that has a focal length equal to 6.6 mm. what is the laternal magnification of the objective
A spring with a constant 150 N/m is attached to a block with a mass 1.5 kg. What is the maximum displacement the mass will achieve
To make a bounce pass, a player throws a 0.60-kgbasketball toward the floor. find the magnitude of the impulse delivered to it by the floor
Two small metallic spheres, each of mass m = 0.198 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.4 nC, and they come to equilibrium when each string is ..
A 4 kg blue ball moves to the right at 6 m/s. A 3 kg red ball moves to the left at 7 m/s. How fast and in what direction is the red ball moving
John and Joan walk in opposite directions around a circular path, starting from the same point. How long will it take for them to meet
Ball 1, with a mass of 130g and traveling at 14m/s, collides head on with ball 2, What are the final velocities of each ball if the collision is perfectly elastic
You are on a bridge which is a height 30m above the water. You first drop a ball and then 1.5 seconds later throw a second ball down so that both balls hit the water at the same time.
An air bubble has a volume of 1.65 cm3 when it is released by a submarine 115 m below the surface of a lake. What is the volume of the bubble
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