It is D, you can not replace minerals. This makes them valuable.
The charge density of the sheet is 1.384×10⁻⁷C/m².
Charge density is defined as the charge per unit area.
The sheet is a square of length l=17 cm.
Calculate the area A of the sheet .
The charge Q on the sheet is
The charge density σ is given by,
Substitute 4×10⁻⁹C for Q and 0.0289 m² for A.
Thus, the charge density of the sheet is <u>1.384×10⁻⁷C/m².</u>
Answer:
so he can know where to put the heating things so he will know which place will trap the most heat. He will also need to know that depending on where he puts the cooling system, where it will make the most use.
Explanation:
<u>Given data</u>
Power = 12 KW ,
mass (m) = 1000 kg ,
Force (F) = 2000 N ,
time (t) = 2.75 s
Determine
1. Velocity (v) = ?
2. Work (W) = ?
We know that Power (P) = Rate of doing work
= ( Work ÷time) KW
Also we know that Work = F × displacement
Force = m.a N
=> 2000 = 1000 × a
=> a = 2 m/s²
And we know that acceleration (a) = rate of change of velocity
= v ÷ t
=> v = a × t
= 2 × 2.75
= 5.5 m/s
Now determine the Power P = Work done ÷ time
12 = W ÷ 2.75
<em> W= 12 ×2.75</em>
<em> = 33 KJ</em>
<em> = 33000 J</em>
Answer:
The asteroid belt is a region of our solar system, between the orbits of Mars and Jupiter, in which many small bodies orbit our sun.
Explanation:
Hope this helps!
