True. No matter can be created nor destroyed in pretty much every aspect of life, especially chemical reactions.
-- The net force on the box is 2N to the left.
-- The box will move to the left and accelerate to the left.
-- F=ma . a=F/m . a=(2N)/(4kg).
a = 0.5 m/s^2 to the left.
Answer:
He requires 1 gram of mass.
Explanation:
The density is defined as:
(1)
Where m is the mass and V is the volume.
Then, m can be isolated from equation 1 in order to determine the mass.
(2)
Hence, he requires 1 gram of mass.
Earth's dynamic processes allow our planet to recycle air, surface materials, and water. The correct answer is D.
1kg = 1000000000 micrograms
I hope it helps you ;)