Answer:
T = 52.3°C
Explanation:
given,
total mass = 407 g
power = 750 W
time = 5 minutes
Latent of melting = 334 J/g
increase in temperature = ?
energy required to melt =
= m Lm
= 334 x 407
= 135938 J
energy by the microwave
E = 750 x 5 x 50
E = 225000 J
Actual energy increased
= 225000-135938 = 89062 J
using formula
Q = m c_s Δ T
c_s is the specific heat of water which is equal to 4.184 J/g⁰C
T = 52.3°C
Answer:
Explanation: When you throw a ball up in the air, its direction/velocity on the way up, although it rises up into the air, is actually downward. On its way up, its speed decreases, until it momentarily stops at the very top of the ball s motion. Its acceleration is -9.8 m/s^2 at the very top.
Answer:by book 2 do you mean the original or re, if you you mean who taught kaneki to control his kagune it was yoshimura (the manager) but if your talking about how to fight with control of his kagune its was Yomo
Explanation: if I'm wrong correct me and i'll do more research
Well, let’s find the initial velocity first:
Vf = Vi + at
0 = Vi - 9.8*2
0 = Vi - 19.6
Vi = 19.6 m/s
We know the final velocity is 0 because when it hits it’s peak, it’s at 0 m/s.
So now use this kinematic equation to find the final position:
Yf = Yi + Vi*t + 1/2a*t^2
Yf = 0 + 19.6(2) - 4.9(2^2)
Yf = 39.2 - 19.6
Yf = 19.6 meters
If you have any questions for how I derived anything, just lemme know. Most of the info requires thinking and imagining of the situation. I assumed you know gravity is 9.8 and you’re expected to assume velocity is 0 at peak height
What do they do? well they do....Science!!!