Select the correct answer. A baseball player throws a ball with a velocity of 40 meters per second. The ball's mass is 145 grams. If there is a possible error of 2.5 grams in the mass of the ball, estimate the relative error in the kinetic energy.
The formula for kinetic energy is `k = 1/2mv^2`.

A.
17.241 m/s
B.
1.72 m/s
C.
0.172 m/s
D.
0.0172 m/s

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

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step-by-step explanation:

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.