Quando comecou a educacao fisica no brasil

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

What equation is used to calculate the weight of an object on a plant ?