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A scuba diver releases a 2.21 cm -diameter (spherical) bubble of air from a depth of 13.2 m in a lake. Assume the temperature is constant at 298K, and the air behaves as a perfect gas. How large is the bubble when it reaches the surface?
What is the weight of the displaced amount of water when the boulder is placed inside the tank (measured in N)? The tank had an original volume of water of 5000 L. while the boulder got placed inside the tank, the volume of water rose to 5010.165 ..
q1. assuming that the maximum amplitude of the field at point o for the wave from midway between the slits is er now
A freight train has a mass of 2 multiplied by 107-kg. If the locomotive can exert a constant pull of 12.50 multiplied by 105-N, how long would it take to enhancement the speed of the train from rest to 85.00 km/h.
A stonewith a mass of 2.40-kg is released from rest and falls toward Earth (near the surface of the Earth). Use the impulse-momentum theorem to compute its momentum after falling for 4.00 seconds.
On a summer day, the air conditioning breaks down and the air in your classroom becomes very warm and muggy with a vapour pressure of 20 hPa and a temperature of 25o C.
21.18 g of copper pellets are removed from a 286°C oven and immediately dropped into 198.5 mL of water at 13°C in an insulated cup
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
An object of 50.5 N is attached to the free end of a light string wrapped around a reel with a radius of 0.250 m and mass of 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center..
Find the magnitude of the potential difference between two points located 1.1m apart in a uniform 630 N/C electric field
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 108 m. Find the time it took for his voice to reach earth via radio waves.
q1. a rock is fixed to a 3m long spring. rock is revolving at 2 circles per sec. what is the frequency period angular
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
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