Answer:
acceleration is the rate of change of velocity
therefore in the above statement, the velocity increases twice per second.
when acceleration is negative, then it is accelerated motion.
ie. the car accelerates twice per second
Answer:
4000 N/m²
Explanation:
Area = πr²
Area = π x 0.12² (diameter/2)
Area = 0.05 m²
Pressure = force/area
Pressure = 200/0.05
Pressure = 4000 N/m²
Hope this helps!
Answer:
3%
Explanation:
The total energy ingested is 3000J and of those 3000J, 100J are used for growth and reproduction, this is the part of production in the porcupine, since the other 800J and 2100J are used for internal processes of the porcupine.
Therefore the production efficiency is 100J of the 3000J, let's find out how much it is in percentage:

⇒0.033=3.3% ≈ 3%
The correct option es 3% of production efficiency.
Winds transfer energy in the form heat from the air to the ground!
Answer:
The max. Energy that can be stored in the neoprene rubber capacitor will be 0.304J
Explanation:
Detailed explanation and calculation is shown in the image below