Answer:
Potential energy of spring = 24 Joules.
Explanation:
Given the following data;
Spring constant = 85N/m
Extension, e = 0.75m
Mass = 25kg
To find the potential energy of a spring
Potential energy of a spring is given by the formula;
P.E = ½ke²
Substituting into the equation, we have
P.E = ½*85*0.75²
P.E = 42.5 * 0.5625
P.E = 23.91 ≈ 24 Joules
P.E = 24 Joules
Answer:elastic energy i believe
Explanation:
Answer:
Explanation:
Speed = distance / time
Given speed = 127 m/s .
distance = 1.58 m
time = ?
Putting the values in the formula
127 m/s = 1.58 m / time
time = 1.58 / 127 s
= 12.44 ms .
Answer:

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.
For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards
Explanation:
As we know that heat flux is given by the formula

here we know that
K = thermal conductivity
= temperature gradient
now we know that

also we know that
K = 1.7 W/mK
now we have

so temperature gradient is given as

also in other unit it will be same

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.
For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards