Hag question 28. A eureka can of mass 100g and cross-sectional area 100cm² is filled with water of density
1g/cm A piece of metal of mass 20g and density 8g/cm is lowered carefully into the can as
shown.
100m
Calcul
a)
The total mass of water and Eureka can before the metal was lowered
(3n

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2

What component of earth’s atmosphere exists entirely as a result of photosynthesis?