Sebuah benda jatuh bebas dari ketinggian 20 m. Jika percepatan gravitasi bumi 10 N/kg , maka : a. berapa energi kinetiknya pada saat berada 15 m di atas tanah b. kecepatan benda pada saat berada 15 m di atas tanah
Answer (4)
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\t\t\t\t\t1. The sequence of human genome will enable geneticists to cure the killer
diseases like cancer.
\t\t\t\t\t2. It may enable us to understand more about the diseases and thereby to design drugs.
\t\t\t\t\t3. HGP aids in diagnosis of defective genes that cause disease.
\t\t\t\t\t4. As HGP may serve as a tool to Eugenical concept, scientists can create superior, disease free human beings in future.
\t\t\t\t\t 5. It helps in somatic cell gene therapy and germ line gene therapy. \t\t\t\t \t\t\t \t\t
The Human Genome Project (HGP) was an international scientific research project with the goal of determining the sequence of nucleotide base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome from both a physical and a functional standpoint. ;
The Human Genome Project was an international effort that began in 1990 and completed in 2003 to map the entire human genome. It identified around 20,000 to 25,000 genes and has greatly advanced our understanding of genetic diseases and personalized medicine. The project also emphasized the ethical implications of genetic research.
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Jawaban:cara menghitung energi kinetik dan kecepatan benda tersebut:Diketahui:- Ketinggian awal (h₀) = 20 m- Ketinggian akhir (h) = 15 m- Percepatan gravitasi (g) = 10 N/kg (sama dengan 10 m/s²)ditanya=A.Ek=?B.v=?a. Energi Kinetik (Ek) pada ketinggian 15 m1. Hitung perubahan energi potensial (ΔEp):- ΔEp = m × g × Δh, di mana Δh adalah perubahan ketinggian (h₀ - h)- Δh = 20 m - 15 m = 5 m- Karna energi potensial berkurang, energi kinetik akan bertambah sebesar nilai yang sama. maka, Ek = |ΔEp|2. Asumsikan massa benda (m) = 1 kg (Karena massa tidak diberikan, kita asumsikan 1 kg untuk perhitungan. Hasil akan proporsional jika massa berbeda).3. Hitung Ek:- Ek = m × g × Δh = 1 kg × 10 m/s² × 5 m = 50 Joulemaka, energi kinetik benda pada saat berada 15 m di atas tanah yaitu 50 Joule (untuk benda bermassa 1 kg). b. Kecepatan (v) benda pada ketinggian 15 m1. Gunakan rumus energi kinetik:- Ek = 1/2 × m × v²2. Substitusi nilai Ek dan m (massa 1 kg):- 50 J = 1/2 × 1 kg × v²3. Cari v:- v² = (50 J × 2) / 1 kg = 100 m²/s²- v = √100 m²/s² = 10 m/s maka, kecepatan benda pada saat berada 15 m di atas tanah yaitu 10 m/s.
