Answer:
protect equipment by stopping the flow of electric current; protect your house from fire.
Answer:
6.13 s
219 N
Explanation:
Newton's law in the x direction:
∑F = ma
150 cos 30° N − 50 N = (30 kg) a
a = 2.66 m/s²
Δx = v₀ t + ½ at²
(50 m) = (0 m/s) t + ½ (2.66 m/s²) t²
t = 6.13 s
Newton's law in the y direction:
∑F = ma
Fn + 150 sin 30° N − (30 kg) (9.8 m/s²) = 0
Fn = 219 N
Answer:
The kinetic energy of the merry-go-round is
.
Explanation:
Given:
Weight of the merry-go-round, 
Radius of the merry-go-round, 
the force on the merry-go-round, 
Acceleration due to gravity, 
Time given, 
Mass of the merry-go-round is given by

Moment of inertial of the merry-go-round is given by

Torque on the merry-go-round is given by

The angular acceleration is given by

The angular velocity is given by

The kinetic energy of the merry-go-round is given by

<span>Answer: Burrhus Frederic Skinner's Operant Conditioning.
</span><span>B.F. Skinner believed that to understand behavior, in the best way, is to look at the root causes or reasons of an action and its outcomes.
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Skinner proposes the Law of Effect-Reinforcement. Here,he differentiated the positively reinforced behavior or the strengthened behavior, the negatively reinforced behavior (removal of the unpleasant experience), and weakened behavior because of punishment.
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In positive reinforcement, behavior is strengthened through providing an outcome, an effect that an individual finds rewarding. Negative reinforcement also strengthens behavior because the unpleasant experience was removed. Punishment on the other hand is an opposite to reinforcement. Instead of increasing the response, it eliminates it or weakens it.
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