Answer:
h = 2.5 m
Explanation:
Given that,
Mass of a ball, m = 1.5 kg
Initial velocity of the ball, u = 7 m/s
We need to find the maximum height reached by the ball. Let it is be h. Using the conservation of energy to find it such that,

Put all the values,

So, it will reach to a height of 2.5 m.
<h2>
Answer: g/cm³</h2>
Explanation:
Since mass is being divided by volume, the units must also represent this ratio. Since mass can be given in grams and volume in cubic centimeters, then g/cm³ is the likely answer in this case.
Answer: B. Current x delivered 6.3 C more then Y
Explanation:
Answer:

Explanation:


hope this helps!!!!!!!!!!
Explanation:
A • B = (2i - 3j + k) • (i + j + k)
= (2)(1) + (- 3)(1) + (1)(1)
= 0 = AB cos θ
∴ cos θ = 0 (as A ≠ 0,B ≠ 0)
or θ = 90°
or the vectors A and B are mutually perpendicular.
<u>-TheUnknown</u><u>Scientist</u>