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A scuba diver releases a 3.50 cmdiameter (spherical) bubble of air from a depth of 10.0 m in alake. Assume the temperature is constant at 298 K, and the airbehaves as a perfect gas. How large is the bubble when it reachesthe surface?
diameter = cm
A high-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. The flywheel has mass 37.0kg and diameter 71 cm. The power is off for 27.0s and during this time the flywheel slows due to friction in its axle bearings...
A mass of 35.3kg is attached to a light string that is wrapped around a cylindrical spool of radius 10cm and moment of inertia 4.00 kg*m^2. How long does it take to reach the floor
A step-down transformer is used for recharging the batteries of portable devices such as tape players. find the voltage supplied to a tape player from the transformer
What is the magnitude of the force on the electron from the uranium ion?
If the total momentum of a system is a constant, then we say that the total momentum is conserved. A consequence of Newton’s laws of physics is that the total momentum of a system is conserved whenever the net external force on the system is zero.
A man stands at midpoint between two speakers, that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 30.0m apart and the total power of the sound coming from each speaker is .500W.
A positive point charge Q1 = 5.0*10-5 C is fixed at the origin of coordinates, Find the location(s) where the total electric field is equal to zero
A car is traveling away from you at 40.0 mi/h. The car horn produces a sound at a frequency of 480 Hz. What frequency do you hear
The wheel on a bench grinder has a diameter of 0.3048 m and a mass of 2.4 kg. It is spinning at 26.2 rad/s when the grinder is turned off. Calculate the net torque on the wheel
All through an experiment, a block of wood with a mass of 250 g is placed on an inclined plane. While the plane is raised to an angle of 43o, the block slides down the plane at a constant speed.
Calculate the true mass (that it would have in the absence of air) of a piece of aluminum whose apparent mass is 2.0000 kg
q. a 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 nm. in
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