A change in temperature can cause the a change in state of matter.
A physical change is where substance does not change where as in chemical reaction substance is changed and forms another form.
Explanation:
The three importance of measurement are as follows :-
- <em>measurement </em><em>is </em><em>used </em><em>to </em><em>compare</em><em> </em><em>the </em><em>items</em><em> </em><em>when </em><em>barter </em><em>system</em><em> </em><em>takes </em><em>place</em><em> </em><em>.</em>
- <em>measurement</em><em> </em><em>helps </em><em>in </em><em>weighing</em><em> </em><em>the </em><em>foods </em><em>,</em><em> </em><em>groceries</em><em> </em><em>etc </em><em>.</em>
- <em>Measurement</em><em> </em><em>are </em><em>important</em><em> </em><em>in </em><em>laboratory</em><em> </em><em>when </em><em>there </em><em> </em><em>experiments</em><em> </em><em>is </em><em>being</em><em> </em><em> </em><em>taken</em><em> </em><em> </em><em>for </em><em>different</em><em> </em><em>purposes</em><em> </em><em>.</em>
<em>Hope </em><em>it</em><em> </em><em>is </em><em>helpful</em><em> to</em><em> you</em><em> </em>
<em>✌️</em><em>✌️</em><em>✌️</em><em>✌️</em><em>✌️</em><em>✌️</em><em>✌️</em>
Answer:
Explanation:
Given a mass spring system
At t = 0.1s, the positions is at x=8cm
x(0.1) = 8cm = 0.08m
Spring constant k=16N/m
Mass attached m = 4kg
Amplitude of oscialltion A=10cm = 0.1m
The angular frequency can be calculated using
w = √k/m
Where k is spring constant in N/m
m is mass attached object to the spring in kg
w = √16/4 = √4
w = 2rad/s.
Generally, the equation of a spring is given as
x = ACos(wt+Φ)
Where,
A is amplitude in metre
w is angular frequency in rad/sec
Φ is phase in radian
x(t) = 0.1Cos(2t + Φ)
At t=0.1 x = 0.08
0.08 = 0.1Cos(0.2+Φ)
Cos(0.2+Φ) = 0.08/0.1
Cos(0.2+Φ) = 0.8
0.2+Φ = ArcCos(0.8), note angle in radiant
0.2+Φ = 0.644
Φ = 0.644 — 0.2
Φ = 0.444 rad.
The phase of the SHM is 0.444rad
The answer is E = 0.44 rad
Explanation:
formation of compounds because the electric forces compel the atoms to attract each other and formed bonds which leads to the formation of chemical compounds. The attractive or repulsive interaction between any two charged bodies is known as an electric force so the attraction between two opposite charged atoms causes the formation of compounds so we can conclude that electric forces are important for the formation of compounds.
Body composition refers to the amount of fat and muscle that the body has. ... Muscular strength is the amount of force a muscle or group of muscles can exert. true. Muscular endurance is fueled by anaerobic energy.