Answer:
Disagree
Explanation:
We cannot see infared lights.
Answer:
The spring constant is 45.94 N/m.
Explanation:
Given that,
Length = 50 cm
Mass = 270 g
Stretching the spring = 24 cm
We need to calculate the spring constant
Using formula of energy
The change in potential energy equal to the change in kinetic energy.
Put the value into the formula
Hence, The spring constant is 45.94 N/m.
Answer:
There is no heat transfer in the system as the temperature before and after remains same i.e, 25 C.
Explanation:
Heat energy is mathematically expressed as,
Q=mCΔT
By looking at the above equation we can say that heat gain or loss by any system is equal to the mass times specific heat multiplied by the change in temperature.
Now if we consider the water system in view of this equation then ΔT would be 0 therefore it is evident that there is no transfer of heat.
If we consider the empty half of the tank so it is mentioned that there is nothing no air and giving us m=0, hence Q=0.
Mathematically we can express this as
Q=mCΔT
Q=(5)(4200)(0)
Q= 0 KJ <em>(which indicates that there was no heat gain or loss by the system)</em>
You could use clothing glue.
Answer = 1000N
F = ma
M = 500kg
a= 2 m/s/s
Solve for F
