Answer:
(A) 60 J
Explanation:
At state 1
KE₁=100 J
At state 2
KE₂ = 0
U₂=80 J
Given that surface is rough so friction force will act in opposite to the direction of motion
Lets take work done by friction = Wfr
From work power energy
Work done by all forces = Change in kinetic energy
Wfr + U₂=ΔKE
Wfr+80 = 100
Wfr= 20 J
Now when book slides from top position then
Wfr+ U = KEf - KEi
-20 + 80 = KEf-0
KEf= 60 J
(A) 60 J
a. The risk of injury must be predictable.
b. A "breach of duty" is when a professional fails to uphold a level of care.
c. There must be a standard of care in place, and the practitioner must assume responsibility for the patient.
d. There must be a clear link between the treatment received and the harm.
<h3>What is malpractice?</h3>
Malpractice, commonly referred to as professional negligence, is defined as "an incident of carelessness or incompetence on the part of a professional" under tort law.
The following professionals might be the target of malpractice claims:
Medical professionals: If a doctor or other healthcare practitioner does not exercise the level of care and competence that a similarly situated professional in the same medical field would deliver under the circumstances, a medical malpractice claim may be made against them.
Lawyers: Failure to provide services with the amount of competence, care, and diligence that a reasonable lawyer would use in the same situation may be grounds for a legal malpractice claim.
To know more about malpractice, visit;
brainly.com/question/25441985
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Option (D) is correct that all of the above are physical properties of non metals.
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