Answer:
2400 J
Explanation:
Latent heat: This is also called hidden heat, it is the heat that is not detectable by the thermometer.
From the question,
Q = cm.................. Equation 1
Where Q = Energy, c = specific latent heat of the liquid, m = mass of the liquid.
Given: c = 4000 J/kg, m = 600 g =( 600/1000) kg = 0.6 kg
Substitute these values into equation 1
Q = 4000×0.6
Q = 2400 J
Hence the energy required is 2400 J
10.92N
Explanation:
Given parameters:
Mass of the truck = 2.964kg
velocity = 7m/s
Time = 1.9s
Unknown;
Average force on the car = ?
Solution:
The force acting on the car is a function of its mass and acceleration according the newton's second law of motion.
Force = mass x acceleration
Since acceleration = 
Force = mass x 
Force = 
= 10.92N
learn more:
Newton's laws brainly.com/question/11411375
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