Answer:
the acceleration of the elevator is increasing
Explanation:
For this exercise we propose the solution using Newton's second law
F -W = m a
F = m (g + a)
If the net force increases, it implies that the acceleration of the elevator is increasing, since the acceleration of gravity is constant as the ascent is accelerating.
Answer: option A.
Explanation:
Q= heat removed from the water
m= mass of the water = 80 grams
c = heat capacity of water= 4.18 J/g°C
Q = -10,032 joules -10,000 Joules
Negative sign indicates that heat was removed from the water
Answer:
E=h.f
=5.2×1014×6.63×10^-34
E=3.496×10^-30 J
Yes it is an ion as it has a positive charge (i.e more protons than electrons, in this case there is no electrons). It's also an ion of an isotope of a hydrogen atom.
Hope this helps :).
