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GFJNIN9858
26.06.2019 •
Physics
Which piece of equipment would give the most accurate measurement of 45 ml of a liquid? a) a 100 ml graduated cylinder b) a 50 ml graduated cylinder c) a 100 ml beaker d) a 50 ml flask
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Ответ:
Its b for sure
Explanation : because it has graduations for max. 50ml
Plese mark as brainliest
Ответ:
b is the answer i think
Ответ:
1) Spring constant = 2681.75 N/m
2)Velocity after launch = 13.33 m/s
Explanation:
Since the energy of system is conserved we shall equate initial energy and the energy at the top point of the ball
When the ball reaches it's maximum height it shall have only horizontal component of velocity while as the vertical component will become zero
Thus at the top most point the energy of the ball becomes
Applying values we get
Now since the motion of the ball is projectile motion the maximum height reached by the ball is given by
Using the velocity in the equation of energy at top we get
Equating initial energy and the energy at the top we get