An orange is weighed and its mass is 200 grams. Then, the peeling is removed, and both the peeling and orange are weighed. What is the total mass of the orange and peeling after the orange has been peeled?

200 grams

Explanation:

If the exact same amount is placed on the scale the weight won't change due to the law of conservation of matter.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

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