Aparticle is projected at an
angle of 45 degrees and a
velocity of 60 m/s, and taking
gravity 9.81 ms,
1. find the equation for the
particle for horizontal
displacement.
2. find the initial displacement
of the vertical motion.
3. find the equation for the
particle for vertical
displacement.
4. find the time taken to reach
the ground.
5. find the horizontal distance
that the particle travels.
6. find the maximum height of
the particle.
7.find the equation of the
trajectory.
8. find the height of the
particle when the horizontal
distance is 10 m.
9. find the horizontal distance
when the height of the
particle is 50 m.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

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If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?