Answer:
2 days 2 hours or 50 hours
Explanation:
800/16=50
Increase the force the engine provides and decrease the mass of the car
Answer:
Sound waves need to travel through a medium such as solids, liquids and gases. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly.
Explanation:
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You need to know the specific heat capacity of air.
Then energy needed = 0.005 x sp.heat.cap x 10