3 years ago

Can someone please help? Thanks! The answer that I have marked is incorrect, im making corrections

Physics

2 answers:

Aleksandr-060686 [28]3 years ago

6 0

The correct answer would be D

artcher [175]3 years ago

3 0

Answer: It is D.

Explanation:

The compass needle pointed in the direction of the current's magnetic field.

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At a given instant the bottom A of the ladder has an acceleration aA = 4 f t/s2 and velocity vA = 6 f t/s, both acting to the le

Nana76 [90]

Answer:

Acceleration=24.9ft^2/s^2

Angular acceleration=1.47rads/s

Explanation:

Note before the ladder is inclined at 30° to the horizontal with a length of 16ft

Hence angular velocity = 6/8=0.75rad/s

acceleration Ab=Aa +(Ab/a)+(Ab/a)t

4+0.75^2*16+a*16

0=0.75^2*16cos30°-a*16sin30°---1

Ab=0+0.75^2sin30°+a*16cos30°----2

Solving equation 1

(0.75^2*16cos30/16sin30)=angular acceleration=a=1.47rad/s

Also from equation 2

Ab=0.75^2*16sin30+1.47*16cos30=24.9ft^2/s^2

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3 years ago

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natima [27]

Answer:

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