Answer:
Temperature at the bottom will be 19.18°C
Explanation:
We have given height h = 807 m
Temperature at the top
Specific heat of water c = 4200
From energy conservation
Kinetic energy at the bottom = potential energy at the top
So
So temperature at the bottom = 17.3+1.88 = 19.18°C
The vertical velocity of the ball is:
. Since gravity acts at
, this means that the time of flight up to the maximum height (at which vertical velocity is 0) would be:
This maximum height is:
Then the time for it to fall down will be:
The total time will be 3.69 + 3.73 = 7.42 seconds.
Answer:
Because it turn to the next side or i should say in the back.
Explanation:
Answer:
5.11 s
Explanation:
Given:
v₀ = 0 m/s
y₀ = 128 m
y = 0 m
a = -9.8 m/s²
Find: t
y = y₀ + v₀ t + ½ at²
(0 m) = (128 m) + (0 m/s) t + ½ (-9.8 m/s²) t²
t = 5.11 s
Answer:
X Component is 183.85N
Explanation:
The x component of the force on the block due to the rope;
X = F cos @ where if is the force, @ is the angle mad with the block.
X = F cos @
X = 240 cos 40
Cos 40= 0.7660, so
X = 240 × 0.7660
X component= 183.85N// rounded to two decimal places.