Answer:
Explanation:
The minimum magnitude of acceleration = 3 m /s²
displacement at t = 1
s = ut + 1 /2 at²
= -3 x 1 + .5 x 3 x 1²
= - 3 + 1.5
= - 1.5 m
position at t = 1 s
= 10 - 1.5
= 8.5 m
The maximum magnitude of acceleration = 6 m /s²
displacement at t = 1
s = ut + 1 /2 at²
= -3 x 1 + .5 x 6 x 1²
= - 3 + 3
= 0
position at t = 1 s
= 10 +0
= 10 m
So range of position is 8.5 m to 10 m .
Answer:
The answer is A, B, C, D
Explanation:
This is because gravity is the weakest force of the four fundamental forces, so it automatically cancels letter E
There are 4 significant figures in 0.007890. These are 7890, which has non zeroes 7 8 9 and a trailing zero after the non zero. The leading zero or the zeroes before the non zero digit in a decimal is not considered to be significant numbers. Zeros can also be considered significant if they exist between non-zero numbers like 2018.
Answer:
2,800°F (1,538°C)
Explanation:
30g of iron will melt at the same temperature as 1g of iron.