Тело массой 200 г подвешенное на пружине с жесткостью 16 н/м колеблется с амплитудой 2 см в горизонтальной плоскости.Определите циклическую частоту колебания тела и энергию системы

Поставьте глаголы в скобках во врeмена  Present Simple, Present Continuous, Present Perfect или Present Perfect Continuous. Вставленные слова подчеркните.

     James (be) a taxi-driver. He (work) in London. He (know) the city very well. He (work) as a taxi-driver for 25 years.

‘I (love) my job, because every day I (meet) new people. Many tourists     (visit) the city, especially in summer and I (tell) them about every street.’ Now James (have lunch) in a café. He usually ( have) two breaks a day for a short rest. At the weekends he (go) to the seaside. He (spend) his holidays at the same place for many years.

     James (be) a good worker. He (earn) about 2000 pounds a month. This month he (get) even more  – there are many tourists in the city now.  Next Monday he (meet) his friends. They (come) to see London. He ( be) going to show them  the city .