Answer:
67500 J
Explanation:
Q = mcΔt.................... Equation 1
Where Q = Amount of heat, m = mass of aluminum, c = specific heat capacity of aluminium, Δt = change or increase in temperature.
From the question,
Given: m = 1 kg, Δt = 75 °C
Constant: c = 900 J/kg.K
Substitute these values into equation 1
Q = 1×900×75
Q = 67500 J
Hence the heat energy required is 67500 J
Bronchial Tubes
hope this helps :)
The weight of the block is (mass x gravity) = (50kg x 9.8 m/s²) = 490 N
The NET vertical force on the block is (490N down) + (600N up) = 110N up.
Acceleration = (net force) / (mass)
Acceleration = (110N up) / (50 kg)
<em>Acceleration = 2.2 m/s² up</em>
The oxygen will flow out of the tire,
which causes the tire to become flat.
