First one is The third one while the last one is The first one
Answer:
C. A principal
Explanation:
A principal will not be directed in the form "tú" (informal) but "usted" (<u>formal</u>).
<h3><em><u>MissSpanish</u></em></h3>
Answer:
Mi familia es muy pequeña. Tengo dos hermanos y dos padres que viven conmigo. Mi hermano es simpático, alto, y usualmente está enojado....: My family is very small. I have 2 brothers and 2 parents that live with me. My brother is nice, tall, and he's usually mad.
Explanation:
I would use words like: simpático/a, bajo/a, alto/a to describe your family. Make sure to always use ser while describing their traits and use estar when describing their emotions.
Answer:
A1v1 = A2v2 = 0,1 m 3/ s
⇒ v1 = 0,1 m³/s / π(0,2 m)²
= 0,8 m/s
and v = 0,1 m³/s / π(0,1 m)²
= 3,2 m/s
Segundo, usamos a equação de Bernoulli para determinar a diferença de pressão entre os extremos do tubo:
P1 - P2 = ½ ρ(v2² - v1²) + ρg(h2 - h1)
= ½ × 10³ kg/m³ . ((3,2 m/s )² - (0,8 m/s )²) + 10³ kg/m³ . 9,8 m/s² . 3,0 m
= 34.200 N/m 2
