Resonansi sebuah garputala dengan tabung resonansi seperti gambar di samping. Resonansi pertama ( gambae2) terjadi saat tinggi air dalam tabung 48cm. Resonansi kedua terjadi saat tinggi air bdalam tanbung 14cm. Jika frekuensi garputalan 500Hz, hitunglah kecepatan bunyi daripercobaan itu

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?