In regard to self-modification, a program of intervention should be designed to increase or decrease target behavior. T F
2 answers:
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Refer to the diagram shown below.
The net force acting on the box is 17 - 13 = 4 N to the right.
The box moves on a friction surface by 3.5 m to the right.
By definition,
Work = Force x Distance.
(a) The work done by the girl is
W₁ = (17 N)*(3.5 m) = 59.5 J
(b) The work done by the boy is
W₂ = (13 N)*(-3.5 m) = - 45.5 J
(c) The work done by the net force is
W₃ = (4 N)*(3.5 m) = 14 J
Note that W₃ = W₁ + W₂
Answers:
(a) 59.5 J
(b) - 45.5 J
(c) 14 J
The net force acting on the box is 17 - 13 = 4 N to the right.
The box moves on a friction surface by 3.5 m to the right.
By definition,
Work = Force x Distance.
(a) The work done by the girl is
W₁ = (17 N)*(3.5 m) = 59.5 J
(b) The work done by the boy is
W₂ = (13 N)*(-3.5 m) = - 45.5 J
(c) The work done by the net force is
W₃ = (4 N)*(3.5 m) = 14 J
Note that W₃ = W₁ + W₂
Answers:
(a) 59.5 J
(b) - 45.5 J
(c) 14 J
Answer:
The value is
Explanation:
From the question we are told that
The mass is
The diameter is
The angular speed is
The mass of each of the blocks is
Generally the radius of the turntable is mathematically represented as
=>
=>
The moment of inertia of the turntable before the blocks fell is mathematically represented as
=>
=>
The moment of inertia of the turntable after the blocks fell is mathematically represented as
=>
=>
Generally from the law of angular momentum conservation
Here is the initial angular momentum of the turntable before the blocks fell which is mathematically represented as
and is the initial angular momentum of the turntable after the blocks fell which is mathematically represented as
So
=>