50/200×100%=25% is answer the formula is usefull energy output divided by total energy provided into 100%
An electron is emitted in both positive and negative beta decay, although the positive one is called positron emission.
Answer: Several health conditions, your lifestyle, and your age and family history can increase your risk for heart disease. These are called risk factors. About half of all Americans (47%) have at least 1 of 3 key risk factors for heart disease: high blood pressure, high cholesterol, and smoking
Explanation: Have a great day!
Chemical energy (calories) is converted by your body walking on the surface into mechanical/kinetic energy
ANSWER:
- Transported by blood picked up in the alveoli
- Pumped to cells by ventricles
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