Answer:
a. petrification
Explanation:
tar seeps = natural trade that, because of its close proximity to the ground surface, seeps from the cracks in the Earth or between rocks forming pits or pools (tar pits)
amber = fossilized resin produced by extinct coniferous trees, typically yellow in color
mummification = a process in which the skin and flesh of a corpse can be preserved by embalming and drying
Answer: 1 tablet per day
Explanation:
Given:
Mass of vitamin B2 in the tablet = 3.00mg = 0.003g
Daily requirement = 0.0030g/day
To get proper amount of vitamin ( not too much or too low), the number of tablets to take per day is given as;
N = mass per tablet/daily requirement
N = 0.003g/0.003g/day
N = 1 tablet per day
Therefore, a person should use one tablet per day.
Answer: -30kgm/s
Explanation:
Mass M = 5kg
initial velocity V1 = 8m/s
Final velocity V2= 2m/s
Change in momentum = ?
Recall that momentum is the product of mass of an object and the velocity by which it moves.
i.e Momentum = Mass x Change in velocity
Momentum = M x (V2 - V1)
= 5kg x (2m/s - 8m/s)
= 5kg x (-6m/s)
= -30kgm/s (The negative momentum mean the mass is travelling in a negative direction)
Thus, the change in momentum is -30kgm/s
<span>NASA and the Mad Science Group of Montreal, Canada, have teamed in an effort to spark the imagination of children, encouraging more youth to pursue careers in science, technology, engineering and math. The two organizations recently signed a Space Act Agreement, officially launching the development of the Academy of Future Space Explorers.</span>