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V ReanTeacher
Asked: April 19, 2018In: Language

How to post a question in www.vrean.com?

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STEP 1: Sign Up or Register Click on Sign Up Fill in your personal information Click Sign Up STEP 2: Confirm your Email Address Sign in your email account Click on ...

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

គណនាបរិមាណកម្ដៅដែលត្រូវផ្ដល់ឲ្យអង្គធាតុមួយធ្វើពីអាលុយមីញ៉ូម

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គណនាបរិមាណកម្ដៅដែលត្រូវផ្ដល់ឲ្យអង្គធាតុមួយធ្វើពីអាលុយមីញ៉ូមមានម៉ាស ៤gដើម្បីអោយមានបម្រែបម្រួលសី តុណ្ហភាព ៥℃ ដោយដឹងថាកម្ដៅ ម៉ាសអាលុយមីញ៉ូមគឺ ០.២២ Cal / g. ℃ ។

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

តើបរិមាណកម្ដៅមានរូបមន្តដូចម្ដេច?

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F=1.8t+32 Q = m × C ...

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

តើគេអាចគណនាបរិមាណកម្តៅស្រូបឬបញ្ចេញដោយអង្គធាតុមួយកាលណាគេស្គាល់អ្វីខ្លះ?

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a) កាលណាស្គាល់ ម៉ាស កម្តៅម៉ាស និងកំណើន ឬតំហយសីតុណ្ហភាពនៃអង្គធាតុនោះ b) កាលណាស្គាល់ កម្តៅម៉ាស និងកំណើន ឬតំហយសីតុណ្ហភាពនៃអង្គធាតុនោះ c) កាលណាស្គាល់ ម៉ាស និងកំណើន ឬតំហយសីតុណ្ហភាពនៃអង្គធាតុនោះ d) កាលណាស្គាល់ ម៉ាស និងកម្តៅម៉ាសនៃអង្គធាតុនោះ

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

តើបរិមាណកម្ដៅដែលបាត់បង់ដោយអង្គធាតុមួយស្មើនឹងអ្វី?

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a) ស្មើនឹងបរិមាណកម្ដៅដែលអង្គធាតុមួយទៀតបោះបង់ចោល b) ស្មើនឹងបរិមាណកម្ដៅដែលអង្គធាតុមួយទៀតទទួលយក c) ស្មើនឹងបរិមាណកម្ដៅដែលអង្គធាតុមួយមានបម្រែបម្រួលម៉ាស d) មិនច្បាស់

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

តើកាឡូរីម៉ែតជាឧបករណ៍ប្រើសម្រាប់ធ្វើអ្វី?

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a) ជាឧបករណ៍ប្រើសម្រាប់គណនាម៉ាសនៃអង្គធាតុ b) ជាឧបករណ៍ប្រើសម្រាប់គណនាកម្តៅម៉ាសនៃអង្គធាតុ c) ជាឧបករណ៍ប្រើសម្រាប់គណនាកំណើនសីតុណ្ហភាពនៃអង្គធាតុ d) ជាឧបករណ៍ប្រើសម្រាប់គណនាបរិមាណកម្តៅស្រូប ឬបញ្ចេញដោយអង្គធាតុ

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

តើកម្តៅម៉ាសទឹកតម្លៃស្មើនឹងប៉ុន្មាន?

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a) 0.09Cal/g.°∁ b) 1.00Cal/g.°∁ c) 0.57Cal/g.°∁ d) 0.25Cal

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Physics Kh
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Physics KhBegginer
Asked: February 4, 2026In: Physics

ដូចម្តេចហៅថាកម្តៅម៉ាសនៃអង្គធាតុមួយ (រឹង រាវ ឬឧស្ម័ន)?

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គឺជាបរិមាណកម្តៅដែលត្រូវផ្តល់អោយអង្គធាតុនោះ 1g ដើម្បីដំឡើង ឬ តំហយសីតុណ្ហភាពរបស់វា 1℃ ។ គឺជាបរិមាណកម្តៅដែលត្រូវផ្តល់អោយអង្គធាតុនោះ 1Kg ដើម្បីដំឡើង ឬ តំហយសីតុណ្ហភាពរបស់វា 1℃ ។ គឺជាបរិមាណកម្តៅដែលត្រូវផ្តល់អោយអង្គធាតុនោះ 1g ដើម្បីដំឡើង ឬ តំហយសីតុណ្ហភាពរបស់វា 0℃ ។ គឺជាបរិមាណកម្តៅដែលត្រូវផ្តល់អោយអង្គធាតុនោះ 1g ដើម្បីដំឡើង ឬ ...

  • 1 1 Answer
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Physics Kh
  • 0
Physics KhBegginer
Asked: February 4, 2026In: Physics

តើបរិមាណកម្តៅដើម្បីដំឡើង ឬតំហយសីតុណ្ហភាពនៃអង្គធាតុមួយអាស្រ័យទៅនឹងអ្វី?

  • 0

a) ម៉ាសនៃអង្គធាតុ b) សីតុណ្ហភាពនៃអង្គធាតុ c) បម្រែបម្រួលសីតុណ្ហភាពនៃអង្គធាតុ d) មាឌនៃអង្គធាតុ

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Physics Kh
  • 0
Physics KhBegginer
Asked: February 4, 2026In: Physics

តើមួយគីឡូកាឡូរី (1Kcal) ស្មើនឹងប៉ុន្មានកាឡូរី (Cal)?

  • 0

a) 100 cal b) 419 cal c) 4190 cal d) 1000 cal

  • 1 1 Answer
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Physics Kh
  • 0
Physics KhBegginer
Asked: February 4, 2026In: Physics

តើខ្នាតបរិមាណកម្តៅគឺអ្វី?

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a) 100J b) 4.190J c) 41.90J d) 419J

  • 1 1 Answer
  • 2 Views
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  • Physics Kh
    Physics Kh added an answer Q=0.44Cal February 4, 2026 at 1:07 pm
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    Physics Kh added an answer Q = m × C × ∆t February 4, 2026 at 1:04 pm
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    Physics Kh added an answer a) កាលណាស្គាល់ ម៉ាស កម្តៅម៉ាស និងកំណើន ឬតំហយសីតុណ្ហភាពនៃអង្គធាតុនោះ February 4, 2026 at 1:02 pm

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