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When using verbs in le passé composé (Perfect tense) how should I know which verbs take the avoir-form and which take the être-form?

When you are constructing verbs in le passé composé, most verbs will take the avoir form (eg. J'ai écouté) but some verbs will take être (eg. Je suis allé). The verbs that take être can be remembered usin...

Answered by Ethan D. • French tutor

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"An inclined plane at an angle of 25 degrees to the horizontal has a pulley at its top. A 30kg block on the plane is connected to a freely hanging 20kg block by means of a cord passing over the pulley. From rest how far will the 20kg block fall in 2s?

For the 20kg block choose downward as positive and for the 30kg block choose the x axis along the incline as positive.Apply Newton's second law of motion to each block separately.The pulley is frictionles...

Answered by Joni W. • Physics tutor

4322 Views

Tu amiga argentina, Sofía, te ha preguntado sobre lo que haces con tus amigos. Escríbele un email. Menciona: • deportes • redes sociales • televisión • centro comercial.

Hola Sofía, ¿Cómo estás? La semana pasada me preguntaste cuáles son mis pasatiempos favoritos, así que ahora te lo voy a decir.Durante mi almuerzo, el juego más divertido para jugar es el baloncesto. Suel...

Answered by Isabella Y. • Spanish tutor

2511 Views

Express cos(2x) in terms of acos^2(x) + b

cos(2x)=cos²(x) - sin²(x)use sin²(x) = 1 - cos²(x)so cos(2x)=cos²(x) - (1 - cos²(x))cos(2x)=2cos²(x) - 1so a = 2 and b = -1

Answered by • Maths tutor

2928 Views

What is the significance of Lady Macbeth's speech in Macbeth?

Lady Macbeth's speech contains a variety of techniques used to elucidate her descent into madness. We can see this when she states: "out, damn spot, out!". Shakespeare's utilisation of repetitio...

Answered by Harvey L. • English tutor

3375 Views