A scientist is attempting to classify a large object in space. The scientist has determined that the object is in orbit around Jupiter. The
object is most likely a
A. Planet
B. Star
C. Moon
D. Meteor

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.

i believe the answer is 5,000

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: