newtons first law states that a object in motion will stay in motion unless acted on by an outside force and an object at rest will stay at rest for the same reason. the force of a moving object is equal to its mass times its acceleration.
Answer:
The giraffe is the tallest of all mammals. It reaches an overall height of 18 ft (5.5 m) or more. The legs and neck are extremely long. The giraffe has a short body, a tufted tail, a short mane, and short skin-covered horns
A material you are testing conducts electricity but cannot be pulled into wires. It is most likely a metalloid. Hope this helps!
Answer:
534.7
Explanation:
55/1010 = 0.0545m^3
1000(0.0545)(9.81) = 534.7 N (kept at 4 sig figs)
(a) The capacitance of the capacitor is:
![C=4 \mu F=4 \cdot 10^{-6}F](https://tex.z-dn.net/?f=C%3D4%20%5Cmu%20F%3D4%20%5Ccdot%2010%5E%7B-6%7DF)
and the voltage applied across its plates is
![V=12.0 V](https://tex.z-dn.net/?f=V%3D12.0%20V)
The relationship between the charge Q on each plate of the capacitor, the capacitance and the voltage is:
![C= \frac{Q}{V}](https://tex.z-dn.net/?f=C%3D%20%5Cfrac%7BQ%7D%7BV%7D%20)
and re-arranging it we find the charge stored in the capacitor:
![Q=CV=(4 \cdot 10^{-6} F)(12.0 V)=4.8 \cdot 10^{-5} C](https://tex.z-dn.net/?f=Q%3DCV%3D%284%20%5Ccdot%2010%5E%7B-6%7D%20F%29%2812.0%20V%29%3D4.8%20%5Ccdot%2010%5E%7B-5%7D%20C)
(b) The electrical potential energy stored in a capacitor is given by
![U= \frac{1}{2}CV^2](https://tex.z-dn.net/?f=U%3D%20%5Cfrac%7B1%7D%7B2%7DCV%5E2%20)
where C is the capacitance and V is the voltage. The new voltage is
![V=1.50 V](https://tex.z-dn.net/?f=V%3D1.50%20V)
so the energy stored in the capacitor is