Recent content by Kickbladesama

need help on three problems fast! Homework Statement A cylindrical brass container with a base of 87.0 cm2 and height of 20.0 cm is filled to the brim with water when the system is at 25.0°C. How much water overflows when the temperature of the water and the container is raised to 94.5°C...

how do i do this problem?

thanks for help

Homework Statement Light of wavelength 0.544 µm (in air) enters the water in a swimming pool. The speed of light in water is 0.700 times the speed in air. What is the wavelength of the light in water? Homework Equations mu = m / L v = sqrt (F/mu) speed of air 386 m/s The Attempt...

I have no idea why I did it lol...

Homework Statement A flat-bottomed barge, loaded with coal, has a mass of 2.8 x 10 ^(5) kg. The barge is 19.8 m long and 10.5 m wide. It floats in freshwater. What is the depth of the barge below the waterline? Homework Equations Archimedes principle density = mass / volume The...

Homework Statement The pressure inside a bottle of champagne is 5.4 atm higher than the air pressure outside. The neck of the bottle has an inner radius of 0.9 cm. What is the frictional force on the cork due to the neck of the bottle? Homework Equations pi x r ^(2) = area of circle P =...

do you go to wayne state university?

Homework Statement A 116 g ball is traveling to the left with a speed of 34 m/s when it is struck by a racket. The force on the ball, directed to the right and applied over 21 ms of contact time, is shown in the graph. What is the speed of the ball immediately after it leaves the racket...

Homework Statement What is the rotational inertia of a solid iron disk of mass 46 kg, with a thickness of 6.31 cm and radius of 19.4 cm, about an axis through its center and perpendicular to it? Homework Equations either 1/2MR^(2) or I = sigma (1->N) Mi x Ri^(2) The Attempt at a...

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