Answer:
The volume of the cylinder is 
Explanation:
Given that,
The height of the cylinder is 13 cm
Radius of the cylinder is 4 cm
We need to find the volume of the cylinder. The formula that is used to find the volume of a cylinder is given by :

So, the volume of the cylinder is 
Because earths gravitational force is greater than that of the moon.
Answer:
the diver's speed just before she enters the water is 8.718 m/s.
Explanation:
Given;
height of the diving platform, h = 3.8 m
initial velocity of the diver, u = 1.24 m/s
the diver's speed just before she enters the water is her final velocity, = v
Apply the following kinematic equation to determine the final velocity of the girl;
v² = u² + 2gh
v² = (1.24)² + 2(9.8 x 3.8)
v² = 76.018
v = √76.018
v = 8.718 m/s
Therefore, the diver's speed just before she enters the water is 8.718 m/s.
Answer:
6.25 m/s
Explanation:
Given parameters
Initial mark = 65
Final mark = 15
time taken = 8s
Unknown:
Velocity of the runner = ?
Solution:
Velocity is the displacement divided by time;
Velocity =
Displacement = Initial mark - final mark = 65 - 15 = 50m
Now, insert the parameters and solve;
Velocity =
= 6.25m/s