Answer:
1.7531 smu/yn
Explanation:
check the attached file below for answer and explanation.
Density = (mass) / (volume)
4,000 kg/m³ = (mass) / (0.09 m³)
(4,000 kg/m³) x (0.09 m³) = mass
mass = 360 kg
force of gravity = (mass) x (acceleration of gravity) = (360 kg) x (9.8 m/s²) = (360 x 9.8) kg-m<span>/s² </span><span>= </span>3,528 newtons .
Answer:
The current would be 0.12A
Explanation:
Well, the formula for electric current is
where i is current, q is charge and t is time. Then we have to calculate the charge. If we know that the charge of a proton is 
, then we calculate the charge of 1500 protons as it follows:
So the current for each square meter of Earth's surface is
Finally, knowing the surface of the Earth is 510065284702000 
, we can calculate the total current 
Answer:
1320 kg I think
Explanation:
Here you can just substitute into the equation. ∆v means change in speed
this gives you (1100x24)/20
I'm assuming that those are two separate questions.
First, you can reduce friction by either changing the temperature, considering the way the subjects react, or you can check the lubricant characteristics, considering their material and/ or texture.
Secondly, a roller coaster may slow down using friction by joining two different materials. It may be metal gripping onto metal, or a bar preventing the roller coaster to continue moving. This may also be how the roller coaster slows down before entering a new action/ scene.
