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kirill115 [55]
3 years ago
11

Even if it is wrong, why is a hypothesis important?

Physics
1 answer:
Setler79 [48]3 years ago
8 0
So you can have a understanding of what you are doing and figure out your overall goal
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julia-pushkina [17]

2704 j is my answer i did the math. good luck

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Which statement best describes this situation
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Answer:

what situation?

Explanation:

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3 years ago
How could you increase the force advantage of a lever?Select one:a. Make the effort length longer.b. Make the effort length shor
11Alexandr11 [23.1K]

The ideal mechanical advantage of a lever (IMA) is given by:

IMA=\frac{Le}{Lr}

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Le = Effort of the arm

Lr = Resistance arm.

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Answer:

a. Make the effort length longer.

4 0
1 year ago
A mechanic needs to replace the motor for a merry-go-round. The merry-go-round should accelerate from rest to 1.5 rad/s in 7.0 s
marta [7]

Answer

given,

initial speed of merry-go-round = 0 rad/s

final speed of merry-go-round = 1.5 rad/s

time = 7 s

Radius of the disk = 6 m

Mass of the merry-go-round = 25000 Kg

Moment of inertia of the disk

I = \dfrac{1}{2}MR^2

I = \dfrac{1}{2}\times 25000\times 6^2

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angular acceleration

\alpha = \dfrac{\omega_f-\omega_0}{t}

\alpha = \dfrac{1.5-0}{7}

\alpha =0.214\ rad/s^2

we know,

\tau= I \alpha

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\tau=96300\ N.m

8 0
3 years ago
Circuit A
Licemer1 [7]
By V=IR
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C: 6= I*3
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C,A,B
3 0
4 years ago
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