Jawaban Latihan Soal Semua Mapel UTBK/SNBT Lengkap & Gratis

    There appears to be increasing numbers of children who specialize in a single sport an early age. The lure of a college scholarship or a professional career can motivate young athletes to commit to specialized training regimens at an early age. However, the American Academy of Pediatrics recommends avoiding specializing in one sport before puberty.

    Once puberty begins, both boys and girls go through their adolescent growth spurt (AGS). The change and the age at which they occur can have an impact on a child's sport performance. Going through this can have a significant impact on athletic performance in both positive and negative ways. Increases in body size, hormones, and muscle strength can improve athletics performance. Nevertheless, there may be a temporary decline in balance skills and body control during the AGS. Quick increases in height and weight affect the body's center of gravity. Sometimes, the brain needs to adjust to this higher observation point. As a result, a teen may seem a little clumsy.

    This phase is especially noticeable in sports that require good balance and body control (e.g. figure skating, diving, gymnastics, and basketball). In addition, longer arms and legs can affect throwing any type of ball, hitting with a bat, catching with a glove, or swimming and jumping. Coaches that are aware of the AGS can help reduce athletic awkwardness by incorporating specific aspects of training into practice sessions.

The word 'this' in paragraph 2 refers to ....

    Although gluten has gained a bad reputation, the majority of people would struggle to explain what it actually is. The truth is that gluten is just a mixture of proteins found in the seeds of certain cereal plants: wheat, rye and barley. Gluten is stored in a tissue inside the seed called the endosperm, which surrounds the plant embryo and provides a dense source of energy as the plant starts to grow. In wheat, gluten is formed when the proteins glutenin and gliadin cross-link into a net-like structure that provides elasticity (stretchiness) and viscosity (thickness).

    Once food reaches the stomach it must be broken down by enzymes in the process of digestion. Large proteins are broken up into chains of amino acids called peptides. Normally these peptides are easily broken down further; however, the gliadin peptides in gluten are difficult to break down as they are part of a group of peptides called prolamins. Prolamins are made up of lots of glutamine and proline amino acids, which digestive enzymes have difficulty breaking up. This means that unlike most proteins gluten digestion can leave strands of amino acids intact in the small intestine. These strands can be up to 10 amino acids long and are known as oligopeptides. For most people gliadin oligopeptides are harmless. However, a small proportion ofthe population will produce an immune response known as coeliac disease, a condition caused by the body'simmune systems mistakenly attacking itself. Coeliac disease is caused by a reputation to gluten.

The tone of the author is best described as ....

Which paragraph(s) illustrate(s) the importance of the technology and interactive media use that pays attention to the principles of child development?

Perhatikan gambar anatomi jantung berikut!

Bagian-bagian yang ditandai dengan angka 1, 2, dan 3 berturut-turut adalah...

Empat buah muatan masing-masing      terletak di sudut-sudut suatu bujur sangkar berisi 0,2 m. Bila diketahui  adalah permitivitas vakum, maka potensial listrik di tengah bujur sangkar tersebut adalah ....

(SNMPTN 2010) 

Suatu gas ideal monoatomik di dalam ruangan tertutup mempunyai tekanan 1,2 x 10⁵ Pa dan volume 40 liter. Bila gas memuai secara isobarik, sehingga volumenya menjadi 50 liter, maka gas akan menyerap kalor dari lingkungan sebesar 2 x 10³ J. Pada akhir proses ....

1. Suhu gas akan bertambah.
2. Gas melakukan usaha sebesar 1,2 x 10⁴ J.
3. Gas mengalami perubahan energi dalam sebesar 800 J.
4. Massa jenis gas bertambah. 

Gas ideal mula-mula pada tekanan 2N/m² dan volume 10 liter. Gas tersebut mengembang secara isobarik hingga volumenya menjadi 20 liter. Gas tersebut mengembang secara isobarik hongga volumenya menjadi 20 liter. Jika usaha yang dilakukan gas tersebut digunakan untuk menggerakkan benda bermassa 4 kg yang mula-mula diam, benda akan bergerak dengan kecepatan ...  

(UM UGM 2014)

Gas ideal monoatomik sebanyak 0,5 kmol mula-mula memiliki tekanan 120 kPa dan volume 250 cc/kmol. Kemudian gas dipanasi pada tekanan tetap sehingga mengembang. Misalkan konstanta gas universal dinyatakan sebagai R J.mol^-1.K^-1. Jika pada proses itu temperatur gas naik sebesar 8,4/R kelvin, maka usaha yang dilakukan gas untuk mengembang adalah ...  

(SBMPTN 2016)

Dua muatan yang sejenis dengan besar muatan sama, yaitu  dan besarnya massa masing-masing sama, yaitu , masing-masing di ikat pada seutas tali panjangnya masing-masing sama, yakni . Akibat tolakan gaya Coulomb dan tarikan gaya berat, kedua partikel dalam keadaan setimbang. Berapa besarnya jarak antara kedua muatan?

 

(UM UNDIP 2009)

Partikel A (muatan Q_A) dan partikel B (muatan Q_B) keduanya diletakkan pada sumbu x dengan partikel A di x = a dan partikel B di x = -2a. Partikel C (muatan Q_C) yang diletakkan di x = 0 tidak mengalami gaya listrik bila Q_B sebesar  

(UM UGM 2016)