Answer:
Biology
Physics
Chemistry
Explanation:
Biology (life like cells, human reproduction, etc.)
Physics (Studies forces, like gravity.)
Chemistry (studies the atoms, the elements, etc.)
Answer:newtons second law
Explanation:
To get something to accelerate you have to apply a pull force . if the mass increase a grater pull is required
Answer:
The towers height is 322m
Explanation:
We can assume that a simple pendulum hangs from the top of the tower.
In this case, the length of the pendulum will be the same as the height of the tower.
We will use the next expression then:

Where T is the period, L is the pendulum length and g is the gravity 
From the previous expression we will have then that the length will be:

Replacing:

The towers height will be then: 322m
Answer:
0 J
Explanation:
From the diagram below; we would notice that the Force (F) = Tension (T)
Also the angle θ adjacent to the perpendicular line = 90 °
The Workdone W = F. d
W = Fd cos θ
W = Fd cos 90°
W = Fd (0)
W = 0 J
Hence the force is perpendicular to the direction of displacement and the net work done in a circular motion in one complete revolution is = 0
Answer:
1.71
Explanation:
the parabolic movment is described by the following equation:

where y is the height of the ball, a is the angle of launch,
the initial velocity, g the gravity and x is the horizontal distance of the ball.
So, if we want that the ball reach the hood, we will replace values on the equation as:

Finally, solving for
, we get:

1.71