Answer:
Explanation:
The magnitude of the acceleration in the x direction is always zero: TRUE.
At the apex, in the y direction the velocity is zero and the accelration is positive. TRUE.
At the apex, in the x direction, the velocity is zero and the acceleration is zero. FALSE. The accelration is zero, but the velocity is the same it had when it was shot.
The magnitude of the velocity in the y direction is always constant. FALSE, it's subject to gravity and it's velocity varies as 
At the apex, in the Y direction, the velocity is negative and the acceleration is zero. FALSE. Velocity is zero, Acceleration is
, towards the negative y axis
The answer is c☺️ hope u have a good day
It's by..................
energy/time
Answer:
C
Explanation:
During investigations a scientist needs to observe, investigate, collect data and put together the information they collect.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The mass of the other block is 
Explanation:
From the question we are told that
Mass of the first block is 
The height is 
The time it takes it is
Generally from kinematic equation

Here u is the initial velocity which zero given that it was at rest initially
So

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Generally from the diagram the resultant force due to the weight of the first object and the tension on the string is mathematically represented as

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Generally from the diagram the resultant force due to the weight of the second object and the tension on the string is mathematically represented as

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=> 