Answer:
a
Explanation:
it explains the most, and it is the correct theorem
Answer:694J/K
Explanation:
m = 0.140 kg
dt = 4.216K
Entropy change,
dg = dh - dt*ds = 0
dh = dtds
ds = dh/dt
dh =m x c
s2-s1 = 0.140 x 2.09 x 10^4 /4.216
s2-s1 = 2926/4.216
s2-s1 = 694J/K
The object's final velocity, using the impulse-momentum theorem, is 20 i +7 j.
<h3>What is kinetic energy?</h3>
- A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force.
- Kinetic energy comes in five forms: radiant, thermal, acoustic, electrical, and mechanical.
- The energy of a body in motion, or kinetic energy (KE), is essentially the energy of all moving objects. Along with potential energy, which is the stored energy present in objects at rest, it is one of the two primary types of energy.
- Explain that a moving object's mass and speed are two factors that impact the amount of kinetic energy it will possess.
Calculate the object's final velocity using the impulse-momentum theorem.
mass of object m = 3 kg
Initial velocity u = 7 j
net force F = 12 i
Time t = 5 s
(1). Impulse J=F t
= 12 i x 5
= 60 Ns i
We know J = m( v-u)
v- u = J / m
= 60 i / 3
= 20 i
v = 20 i + u
= 20 i +7 j
The object's final velocity, using the impulse-momentum theorem, is 20 i +7 j.
To learn more about kinetic energy, refer to:
brainly.com/question/25959744
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Answer:
The threshold potential is reached.
Explanation:
The threshold potential is the critical level to which a membrane potential must be depolarized to initiate an action potential. In neuroscience, threshold potentials are necessary to regulate and propagate signaling in both the central nervous system and the peripheral nervous system.
Most often, the threshold potential is a membrane potential value between –50 and –55 mV but this value can be different as it is based upon several factors.
When the Nerve fires an action potential, the threshold potential is reached.
