TABELA DO IMPOSTO DE RENDA EM 1999 PARA PESSOAS HIS Rendimento em novembro (R$) Alíquota (%)
Até 900
isento
Acima de 900 até 1800
15
Acima de 1800
27,5
Neste período, o salário mensal de Renata era de R$
500,00, então:
(A) Renata era isenta.
(B) Renata deve pagar R$ 375,00 de I. R.
(C) Renata deve pagar R$ 495,00 de I. R.
(P) d) Renata deve pagar R$ 687,50 de I. R.​

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?