It is A: They add energy to the work
Answer:
The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.
Explanation:
currently doing corrections on the test!
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Explanation:
1.<u>Seeds have endosperm which provides nourishment for a new plant, but spores do not have any stored food supplies.</u>
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Answer:
Δ T = 2.28°C
Explanation:
given,
mass of marble = 100 Kg
height of fall = 200 m
acceleration due to gravity = 9.8 m/s²
C_marble = 860 J/(kg °C)
using conservation of energy
Potential energy = heat energy
Δ T = 2.28°C