Answer:
Explanation:
From frequency of oscillation
Initially with the suspended string, the above equation is correct for the relation, hence
where k is force constant and m is the mass
When the spring is cut into half, by physics, the force constant will be doubled as they are inversely proportional
Employing f2/ f1, we have
Answer:
The Kelvin temperature scale is used by scientists because they wanted a temperature scale where zero reflects the complete absence of thermal energy. ... Many quantum mechanical properties are washed out by the thermal agitation that occurs in materials.
Answer:
Explanation:
Charges in a wire can flow fast or slow, while electrical energy always flows along the wire at the same incredibly high speed. ... However, electrical energy does not travel though the wire as sound travels through air but instead always travels in the space outside of the wires.
Answer:
-135m/s
Explanation:
Impulse P=change in momentum
Let the final velocity be -Vf (negative sign due to opposite direction)
Average force =Impulse/Time
=m(-Vf-Vi)/t
=>0.15m.g (-Vf-45)/0.003=4500N
=>0.15 (-Vf-Vi)=13.5
=>(-Vf-Vi)=90
Given,Vi=45
=>(-Vf) =90+45
=>(-Vf)=135
=>Vf = -135m/s
Hope it helps!!!
