The answer is D but Ig you already knew that
Answer: 62.25
Explanation: F = ma
F = 7.5 * 8.3
F = 62.25
Thus, the answer is 62.25 Newtons.
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Centripetal acceleration can be calculated through the equation:
Ac=V^2/r
V is given as 25 m/s, and r can be calculated through using C=pi•d, but we need the circumference first.
25 meters/s to make one quarter turn = 100 meters total circumference
C=pi•d
100=pi•d
d=31.83 meters
Notice that the equation for Ac asks for radius, which can be calculated by dividing the diameter by two (31.83/2 = 15.92).
Ac=V^2/r
Ac=(25^2)/15.92
Ac=39.26 Newtons
The centripetal acceleration of this object would be approximately 39.26 Newtons (re-run this calculation set with a calculator because rounding was heavily utilized).
Answer:1 because
Explanation: it’s pointing to the earth and gravity
Pulls things down to earth
Calculate mass of lead:
1.00 cm3 lead x 11.4 g/cm3 = 11.4 g lead on one side of balance
To balance that, one needs 11.4 g of iron on the other pan. Calculate volume of iron to give you 11.4 g:
11.4 g iron x 1 cm3/7.87 g = 1.45 cm3 of iron needed
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