Answer:
The first crew of four astronauts were to land on Mars in 2025. Then, every two years, a new crew of four would arrive.
Explanation:
look it up my dudeski
The answer is C. The ball and floor had friction between them causing the ball to stop rolling
Answer:
The distance is, y = 489.5 [m/s]
Explanation:
To solve this problem we can use the following equation of kinematics.
where:
Vf = final velocity = 98 [m/s]
Vi = initial velocity = 0
g = gravity acceleration = 9.81 [m/s^2]
y = distance [m]
(98^2) = 0 + (2*9.81*y)
Note: the positive sign of the equation means that the acceleration of gravity acts in the direction of the movement of the object.
9604 = 19.62*y
y = 489.5 [m/s]
Answer:
False
Explanation:
It is not necessary, that when the initial speed of the object is zero then it must be at origin.
It may be the object starts motion from the left of origin.
Answer:
29.2 m/s
Explanation:
The escape velocity of an object from the surface of a planet is given by:
where
G is the gravitational constant
M is the mass of the planet
r is the radius of the planet
In this problem, we have
is the mass of the Death Star
is its radius
Substituting into the equation, we find