No plano inclinado abaixo, os coeficientes de atrito são 0,2 e 0,1 e que massa do corpo suspenso é de 4kg enquanto a massa do corpo que está no plano inclinado é de 6kg, determine: (Dados cos = 0,85 e sen = 0,5) a) A tendência de movimento (polia gira no sentido horário ou anti-horário)? Jus

b) Existe movimento? Justifique

c) Aceleração;

d) Tração.

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?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.