Um mergulhador passa de um ponto a 10m de profundidade no mar para outro a 25m de profundidade. Considere a densidade
da água salgada 10^3 kg/m^3, a pressão
atmosférica local como 1 atm (10^5 Pa), e
a aceleração local da gravidade 10 m/s^2
suponha que equipamentos de segurança
para pressão em atm variando em números
inteiros a 1 a 10 atm. Qual seria a pressão
mínima de segurança que ele deve ter em sei
equipamento para esse mergulho?

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •