Answer:
P₂ = 252 W
Explanation:
The electrical power is
P = V I
The potential difference is
V = I R
I = V / R
Let's replace
P = V² / R
Let's use the given values to calculate the resistance of the bulb
R = V² / P
R = 120²/75
R = 192 ohm
This resistance value does not depend on the applied voltage, so it is constant
Let's calculate the power in Europe
P₂ = V₂² / R
P₂ = 220²/192
P₂ = 252 W
the bulb dissipates much more power
Answer:c=0.213 J/g/K
Explanation:
Given
sample mass
initial temperature of mineral
mass of water
Water initial temperature
Heat capacity of calorimeter =15.3 J/k
Final Temperature is 24.8
let c be the specific heat of mineral
Heat released by mineral sample=heat absorbed by calorimeter and water
Answer:
A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.
Explanation:
Answer:
For a given spring the extension is directly proportional to the force applied For example if the force is doubled, the extension doubles When an elastic object is stretched beyond its limit of proportionality the object does not return to its original length when the force is removed
Explanation:
