Answer:potential energy
Explanation:
When a liquid is at it boiling point, there is increase in it potential energy
Measuring the heat of chemical reactions or physical changes.
m = mass of the car moving in horizontal circle = 1750 kg
v = Constant speed of the car moving in the horizontal circle = 15 m/s
r = radius of the horizontal circular track traced by the car = 45.0 m
F = magnitude of the centripetal force acting on the car
To move in a circle . centripetal force is required which is given as
F = m v²/r
inserting the above values in the formula
F = (1750) (15)²/(45)
F = (1750) (225)/(45)
F = 1750 x 5
F = 8750 N
Answer:
Explanation:
The resistance increases linearly with the temperature - so we can write:
where
is the change in resistance
k is the coefficient of proportionality
is the variation of temperature
In the first part of the problem, we have
So the coefficient of proportionality is
When the resistance is 
, the change in resistance with respect to the resistance at zero degrees is
So we can find the change in temperature as:
So the new temperature is
