Answer:
4.5 m/s
Explanation:
The rock must barely clear the shelf below, this means that the horizontal distance covered must be

while the vertical distance covered must be

The rock is thrown horizontally with velocity
, so we can rewrite the horizontal distance as

where t is the time of flight. Re-arranging the equation,
(1)
The vertical distance covered instead is

where we omit the term
since the initial vertical velocity is zero. From this equation,
(2)
Equating (1) and (2), we can solve the equation to find
:

Answer:
44(speed) x 10(time) = 440(distance). So the answer is 440 meters.
Answer:
Force, F = 16814.95 N
Explanation:
It is given that,
Mass of space station, m = 2010 kg
Altitude, 
Mass of earth, 
Mean radius of earth, 
Magnitude of force is given by :

R = r + d


F = 16814.95 N
So, the force between the space station and the Earth is 16814.95 N. Hence, this is the required solution.
Answer:
It includes the preserved soft tissue of an organism
Using , F= ma .
where F is netforce , m is mass and a is acceleration produced .
=> m=F/a.
m= 8/1.1 = 7.27 Kg.