Dari seni rupa,seni musik,seni tari,seni drama atau theater pilih lah 2 seni yang kamu niat serta alasan
Answer (4)
The absolute minimum work required for that job is the potential energy that will be added to the trunk by moving it up 2meters.
Potential energy = (weight) x (height) = (130 N) x (2) = 260 Joules
That's the absolute minimum, because the trunk itself needs that much energy in order to get up there. But if you're doing the lifting, you may need to expend more energy than that, just because the human body is not a 100% efficient machine. It always takes more work to do something physical than the energy you actually deliver to the job.
Here's a mind-blowing factoid: Do you see that 260 joules up there in the answer to the trunk ? If you eat, let's say, 1800 Calories a day and don't gain any weight, that means that you're burning off 260 joules of energy about every 3 seconds ! ! ! Just to keep your body warm, keep your breathing going, keep your brain in tune, and move yourself around ! Enough energy to lift that 30-pound trunk about 6-1/2 feet straight up off the floor !
1 Calorie = 4184 joules 1 day = 86,400 seconds
Formula for the work is W=Fs where F is force and s is distance Now we can just substitute our data and find work W=130N*2m=260J The result is 260J.
The work needed to move a 130 N trunk to a ledge 2 meters above is 260 Joules, calculated using the potential energy formula. This represents the minimum energy needed to lift the trunk against gravity. Additional energy may be required due to inefficiencies during the lifting process.
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Jawaban:sebenernya kalau itu pertanyaan yang lebih cocok kamu tanyakan ke diri kamu sendiri hehe, Cuma kalau seandainya kamu nanya ke aku, jujur aku bakal pilih seni musik dan seni rupa. 1. Seni musik : karena aku suka mengekspresikan perasaan lewat lagu dan musik bisa bikin mood jadi lebih baik. 2. Seni rupa : juga menarik banget karena kita bebas menuangkan ide kreatif lewat gambar, lukisan, atau karya visual lain yang hasilnya bisa dinikmati banyak orang.coba tanya ke diri kamu, Kamu lebih tertarik ke yang mana ?
