<span>a+b= ?
3i +3j + (3i -3j) = ?
3i + 3j + 3i -3j =?
= 6i + 0j</span>
Answer:
To write a number in scientific notation. First write a decimal point in the numbers so that there's only one digit to the left of the decimal point.
Answer:
<h3>b.fission. </h3>
Explanation:
<h3>Please mark my answer as a brainliest.Please follow me ❤❤❤</h3>
Answer:
I) 420000J
ii)
Explanation:
(I) so you can use the formula for quantity of heat then substitute the values given
formula-Q=mc∆9
Answer:
![Fr=12544N](https://tex.z-dn.net/?f=Fr%3D12544N)
Explanation:
1. Find the equation of eht maximal friction force:
The maximal friction force is given by the equation
, where μs is the static friction coefficient, m is the car´s mass and g is the gravitational force.
2. Replace values in the equation to find the answer:
![Fr=0.8*1600kg*9.8\frac{m}{s^{2}}](https://tex.z-dn.net/?f=Fr%3D0.8%2A1600kg%2A9.8%5Cfrac%7Bm%7D%7Bs%5E%7B2%7D%7D)
![Fr=12544N](https://tex.z-dn.net/?f=Fr%3D12544N)