Answer: A time span or amount of something
Explanation: when reaching for a goal u have to measure how long something will take and pace yourself
Answer:
T = 98 N
Explanation:
The gravity of the earth is known to be 9.8 m/s²
Data:
- m = 10 kg
- g = 9.8 m/s²
- T = ?
Use formula:
Replace and solve:
The tension in the rope is <u>98 Newtons.</u>
Greetings.
Answer:
130 cm
Explanation:
After each bounce, the mechanical energy decreases by 18%, which means the maximum height decreases by 18%. Modeling this as exponential decay:
h = 290 (1 − 0.18)ⁿ
h = 290 (0.82)ⁿ
h = 290 (0.82)⁴
h = 130
The ball reaches a height of 130 cm.
Answer:
The correct formula is the first one.
Explanation:
Copper has two valences I and II, in this example, it's mentioned that copper's valence is I.
Then we have to look in all the formulas for one formula where copper has that valence, and that valence is in formula 1 and 3. Number 4 is discarted that formula is incorrect, that formula doesn't exist.
Number 2 is also discarted because in this formula Cu has a valence of 2.
Number three is discarted because here Bromide has a valence of 2 and that is incorrect, Bromide's valence is 1.
