Answer:
6926.4J
Explanation:
Given parameters:
Mass of iron = 200g
Initial temperature = 100°C
Final temperature = 22°C
Unknown:
Amount of heat transferred to the water = ?
Solution:
The quantity of heat transferred to the water is a function of mass and temperature of the iron;
H = m c Ф
m is the mass of the iron
Ф is the change in temperature
C is the specific heat capacity of iron = 0.444 J/g°C
Now;
insert the parameters and solve;
H = 200 x 0.444 x (100-22)
H = 6926.4J
Answer:
x rays is the correct answer
Answer:
v'=0.83m/a and v=10.2m/s
Explanation:
The information that we have is:

The maximum height of the projectile is given by the equation

So, rearrange for the velocity,

Apply the conservation of momentum,

Then rearrange the recoil speed,

F=m*(v^2/r)
F=50.0kg*(1.2m/s^2/16.0m)
F=4.5 N