It i believe it would be 7.3 × 10∧3.
correct me if im wrong
Answer:
The second ball lands 1.5 s after the first ball.
Explanation:
Given;
initial velocity of the ball, u = 12 m/s
height of fall, h = 35 m
initial velocity of the second, v = 12 m/s
Time taken for the first ball to land;

determine the maximum height reached by the second ball;
v² = u² -2gh
at maximum height, the final velocity, v = 0
0 = 12² - (2 x 9.8)h
19.6h = 144
h = 144 / 19.6
h = 7.35 m
time to reach this height;

Total height above the ground to be traveled by the second ball is given as;
= 7.35 m + 35m
= 42.35 m
Time taken for the second ball to fall from this height;

total time spent in air by the second ball;
T = t₁ + t₂
T = 1.23 s + 2.94 s
T = 4.17 s
Time taken for the second ball to land after the first ball is given by;
t = 4.17 s - 2.67 s
T = 1.5 s
Therefore, the second ball lands 1.5 s after the first ball.
Answer: D (Chloroplasts)
Explanation: The chloroplast goes through a process called photosynthesis. During this process, specialized pigments in the chloroplast absorb sunlight and use this energy to combine carbon dioxide and water to make glucose and oxygen.
the answer is C
energy can neither be created nor destroyed; it may only be transformed
Answer:
70 kg man
Explanation:
Let their velocities be v
Mass of the man= 70 kg
Hence, momentum of the man= 70v
Mass of the boy= 40 kg
Hence, momentum of the boy= 40v
70v > 40v
Clearly the momentum of the man is greater than that of the boy.