Mude as frases abaixo da voz ativa para a passiva ou vice-versa. 1. Os alunos fazem exercícios.=
2. Os pratos foram postos na mesa por nós=
3. Os capítulos são lidos por Marta.=
4. Elas ajudaram João.=
5. O trabalho foi acabado por vocês.=
6. Maria foi vista por mim.=
7. O meu pai pagou a conta.=
8. Joaquim abriu a janela.=
9. Estudo a lição.=
10. Elas fecham a porta.=
11. Os filmes são vistos por vocês.=
12. Maria é ouvida por eles.=
13. O bandido é procurado pela polícia.=

What is the relationship between the direction of motion of the balloon and the wind currents

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.