Answer:
first law: an object remains in uniform motion except an external force has acted upon it eg a ball in stable motion doesn't move until one moves or kicks it
second law:the body acted upon by an external force gains a momentum which is directly proportional to the applied force and acts in the direction of the force
third law: to every action there is an equal and opposite reaction eg if u push someone the person moves backward away from you and not towards you
Force (F)=Mass (m)×Acceleration (a).
∴F=ma.
∴F=(2kg)×(3ms2).
∴F=6kgms2=6 Newton. =6N.
<span>elements cannot be broken down or resolved into simpler materials. A heterogeneous mixture is a mix of elements, compounds, practically anything, and can be resolved into its components parts by physical methods such as filtration, extraction, sublimation, etc</span>
Answer:735.46N, 626.34N
Explanation: when an elevator ascend, it means it moving against gravity
F= m(a+g)
M=66kg
a=v/t
g=9.81m/s^2
For the first a= 1.2/0.9
a=1.2/0.9
a=1.33m/s2
F=66(1.33+9.81)
F=66(11.143)
F=735.46N
F=m(a+g)
a=v/t
a=-1.6/5
a=-0.32m/s2
F=66(-0.32+9.8)
F=66(9.49)
F=626.34N
Both of them are phase changes that result from the flow of heat. Evaporation happens when heat is added to a substance. Condensation happens when heat comes out of a substance.
