Answer:
C) To magnetize the needle
Explanation: I took the test!
Answer:
-3.5m/s²
Explanation:
Given
Initial Velocity, u = 30m/s
Final Velocity, v = 23m/s
Time, t = 2.0s
Required
Determine the magnitude of acceleration
This is calculated using first equation of motion.
v = u + at
Substitute values for v, u and t
23 = 30 + a * 2.0
23 = 30 + 2.0a
23 - 30 = 2.0a
-7 =2.0a
Solve for a
a = -7 ÷ 2.0
a = -3.5m/s²
Answer:
Atoms are the most basic units of an element whereas molecules are atoms that are chemically bonded together.
Explanation:
- The atoms are made up of protons, neutrons, and electrons that are the basic constituents of matter.
- The atoms occur in nature as single or bonded.
- The inert gases are the atoms that they occur as the individual atoms in nature.
- All other atoms in nature are bonded to the same elements or different elements and form molecules.
- Hence, atoms are the most basic units of an element whereas molecules are atoms that are chemically bonded together.
Answer:
a
Explanation:
when magma cools Crystal's form because the solution is super saturated with respect to some minerals if the magma cools quickly the crystals do not have much time to form hence they are small and also the resulting rock is fine grained