Recent content by o0ojeneeo0o

Homework Statement At 19 m below the surface of the sea (den- sity of 542 kg/m^3), where the temperature is 7 degree C, a diver exhales an air bubble having a volume of 0.8 cm^3. If the surface temperature of the sea is 13 degree C, what is the volume of the bubble immediately before...

1. \Sigma\tau = -mg - Fchild = -12N(.65m) - 38N(1.3m) = -57.2Nm I don't think that's right though... the answer shouldn't be negative should it?

Umm, I know it would probably seem like it would be straight forward, but I'm a complete idiot when it comes to physics. I also contribute that in part to the fact that my physics professor does not speak English very well and doesn't answer any of our questions during class so I've been trying...

Homework Statement Two weights attached to a uniform beam of mass 56 kg are supported in a horizontal position by a pin and cable as shown in the figure.The acceleration of gravity is 9.8 m/s2 . What is the tension in the cable which supports the beam? Answer in units of kN...

Homework Statement A child weighing 38 N climbs onto the right end of a see-saw, little knowing that it is tied down with a rope at its left end. The see-saw is 2.6 m long, weighs 12 N and is tilted at an angle of 17◦ from the horizontal. The center of mass of the see-saw is half way...