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nirvana33 [79]
3 years ago
15

Work and power!!

Physics
1 answer:
Gnesinka [82]3 years ago
6 0

Answer:

Efficiency

Explanation:

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A heavy turntable, used for rotating large objects, is a solid cylindrical wheel that can rotate about its central axle with neg
scoundrel [369]

Answer:

a) I = 113.014\,kg\cdot m^{2}, b) m = 2075.556\,kg

Explanation:

a) The turntable has the following physical model by using Newton's laws:

F \cdot R = I \cdot \alpha

The moment of inertia is:

I = \frac{F\cdot R}{\alpha}

I = \frac{(300\,N)\cdot(0.33\,m)}{0.876\,\frac{rad}{s^{2}} }

I = 113.014\,kg\cdot m^{2}

b) The moment of inertia for a solid cylinder:

I = \frac{1}{2}\cdot m \cdot R^{2}

The mass of the turntable is:

m = \frac{2 \cdot I}{R^{2}}

m = \frac{(2)\cdot (113.014\,kg\cdot m^{2})}{(0.33\,m)^{2}}

m = 2075.556\,kg

8 0
3 years ago
These waves are most harmful for living things.
scZoUnD [109]

Explanation:

G. gamma rays because they are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.

hope this helps you

have a nice day:)

5 0
3 years ago
Which element can combine with chlorine to make the best conductor of electricity when in the liquid form?
Svetach [21]
The best and most correct answer among the choices provided by your question is the third choice or letter C.

Lithium is the <span>element that can combine with chlorine to make the best conductor of electricity when in the liquid form because </span><span>it has a much lower electronegativity value.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
3 0
3 years ago
Select all that apply.
xeze [42]

Answer:

Its most likely answer number 2

4 0
3 years ago
Read 2 more answers
A 1.2 nf parallel-plate capacitor has an air gap between its plates. Its capacitance increases by 3.0 nf when the gap is filled
Damm [24]

Answer:

2.5

Explanation:

The capacitance of a parallel-plate capacitor filled with dielectric is given by

C=kC_0

where

k is the dielectric constant

C_0 is the capacitance of the capacitor without dielectric

In this problem,

C_0=1.2 nF is the capacitance of the capacitor in air

C=3.0 nF is the capacitance with the dielectric inserted

Solving the equation for k, we find

k=\frac{C}{C_0}=\frac{3.0 nF}{1.2 nF}=2.5

3 0
3 years ago
Read 2 more answers
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