Seorang astronot memiliki saudara kembar dan pergi ke ruang angkasa pada umur 40 tahun. Astronot tersebut kembali ke bumi dan saudara kembarnya kini berusia 50 tahun. Menurut astronot, umur saudara kembarnya seharusnya 48 tahun. Berdasarkan cerita tersebut, maka kecepatan pesawat luar angkasa yang digunakan astronot untuk pergi sebesar . . .

Which levels of government establish and implement educational requirements for minors

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

When using the scientist method, which step comes last?