<span>Gravity is defined as the attraction between objects. All objects with mass<span> are affected by gravity. (Mass is what the matter is made of.) Gravity
acts like a magnet pulling objects together. The Earth has gravity.
Gravity holds everything close to this planet. Trees, water, animals,
buildings, and the air we breathe are all held here by gravity.</span></span>
<span>We need gravity for us to stick on the ground and not to float into the
air. It stops objects from falling off our planet earth.</span>
Answer:
= 201.53 meters
Explanation:
A car started from rest and accelerated at 9.54 m/s^2 for 6.5 seconds. How much distance was covered by the car?
Use the formula d =
where d is the distance, t is the time and "a" is the acceleration.
Answer:
because white pieces of paper have a rough surface that means diffused reflection takes place.
Explanation:
Let us first find out the radioactive constant of Phosphorus 32.
Radioactive constant, λ =
Here, is half life of phosphorus 32 = 14.3 days
λ =
The amount of 4 mg of phosphorus remain after 71.5 days can be found using the formula,
m=m₀e⁻(λt)
=
=
=
=
=
= 0.125 mg
The mass of 4 mg of phosphorus 32 remains after 71.5 days will be 0.125 mg.