Krypton (Kr) and bromine (Br) are Period 4 elements that are also called p-block elements. Krypton is a noble gas while bromine is a halogen.
While comparing the stability of the two elements, Krypton is more stable than bromine. This is because being a noble gas, Krypton follows the octet rule and maintains its stability. Bromine has 35 electrons and the outer most valence shell has 7 electrons so its unstable. Krypton has 36 electrons and 8 electrons in the valence shell so its stable.
Answer:
The final speed of bicycle would be <u>27 m/s</u>².
Step-by-step explanation:
<u>Given</u> :
Initial velocity (u) = 15 m/s- Acceleration (a) = 3.0 m/s²
- Time = 4 seconds
<u>To</u><u> </u><u>Find</u> :
- Final velocity (v)
<u>Using</u><u> </u><u>Formula</u> :
v = final velocity - u = initial velocity
- a = acceleration
- t = time taken
<u>Solution</u> :
Substituting the values in the formula to find the final velocity :
Hence, the final speed of bicycle would be 27 m/s².
Slurred speech, slow reaction time
So the equation is 2x^2 + 7x + 3 = 0, let’s factor this out: 2x^2 + 6x + x + 3 = 0, so 2x(x+3) + 1(x+3) = 0, so (2x+1)(x+3)=0, so x = -1/2 or -3
