Answer:
laa a
Explanation:poque usairea ye aire tienfe luza preopia mkr
The specific heat of aluminum is actually simply a
diversion. Because we can directly compute for the specific heat of copper
using the formula:
ΔH = m C ΔT
where ΔH is change in enthalpy or heat lost, m is mass, C
is specific heat and ΔT is change in temp
4,600 J = 150 g * C * (100 °C - 20°C)
C = 0.38 J/g°C
Answer:
the last one, the third one, and the first one.
Answer:
2.877 m/s
Explanation:
According to the laws of conservation of linear momentum,
the momentum of the moving objects before impact is equal to the momentum of the objects after impact (Assuming no external forces were applied)
Let both players are tackled and moving in V velocity
- M and m - masses of the players
- U and u - velocities of them respectively (both velocities are towards east direction )
momentum before impact = momentum after impact
→MU + →mu = →(M+ m )v
91.5 * 2.73 + 63.5 * 3.09 = (91.5 + 63.5) * V
→V = 2.877 m/s (To East)
