Answer:
50.3 m/s²
Explanation:
Centripetal acceleration is:
a = v² / r
where v is velocity and r is radius.
First, calculate the velocity. Velocity is distance divided by time. The distance is the number of circumferences traveled by the ball.
v = x / t
v = (15.0 × 2π × 0.230 m) / 6.37 s
v = 3.40 m/s
Therefore:
a = (3.40 m/s)² / 0.230 m
a = 50.3 m/s²
d. 110 grams
Explanation:
The number of grams needed to make 1molar solution from 1liter volume is 110grams.
Concentration is the number of moles of solute dissolved in a given volume of solvent.
Since:
desired concentration = 1M
volume = 1L
Number of moles = ?
Concentration =
Number of moles = concentration x volume
Number of moles = 1 x 1 = 1mole
Mass of CaCl₂ = number of moles x molar mass
Molar mass CaCl₂ = 40 + (35x 2 ) = 110g/mol
learn more:
Molar mass brainly.com/question/2861244
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Mass of CaCl₂ = 1mole x 110g/mole = 110g
Here is the answer I hope this helps ❤️❤️
I'm pretty sure it's B
I hope that helps
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