Answer:
H1 = 63.3 kJ
Explanation:
Given:
ΔL = 2.256 kJ/g
Cp = 4190J/kg⋅K
Steam at 100°C in contact with your skin, condenses to water at 100°C. Therefore,
Q = M × ΔL
= (25.0 g)(2.256 kJ/g)
= 56.4 kJ
This condensed water at 100°C is then cooled to 34°C. The heat involved with this temperature change is;
Q = m × Cp × ΔT
= (25 × 1kg/1000g × 4190 × (100°C - 34°C)
= 6913.5 J
= 6.914 kJ
The total heat H1,
= (56.4 kJ) + (6.9135 kJ)
= 63.3 kJ.
its 55 :) have a great day queen/king/whatever gender you are
Answer:
Yes, they are warm blooded.
because their body temperature is close to that of human about 36.4º to 38ºC (97.5º to 100.4ºF)
Explanation:
The distance is the total distance she walked which is 16 meters adding the 6 meters to the corner and 10 meters to her friend's apartment. Her displacement is the distance from her original starting point so you set up a triangle with side lengths of 6 and 10 and solve for the hypotenuse which gives you a displacement of 11.66 meters.
Answer: 6.21 m/s opposite to Janet
Explanation:
Given
mass of Janet
mass of Sarah
The initial velocity of Janet
The final velocity of Janet after the collision is
the final velocity of Sarah after the collision is
Conserving linear momentum
Negative indicates the direction of velocity is opposite than of Janet